ASR emitter User manual

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 1
0.0 Table of Contents of this manual Page 01
1.0 Receiving the ASR Emitter – First moves
1.1 Unpacking Page 02
1.2 Setting up the ASR Emitter
1.3 Important safety precautions Page 03
1.4 The ground lift switch Page 03
2.0 Connecting the ASR Emitter to your system Page 04
2.1 Standard connections Page 05
2.1.1 Connecting high-level source
components to the ASR Emitter
2.1.2 Connecting a high-level source component
to the direct input of the ASR Emitter
2.1.3 Connecting a tape deck to the ASR Emitter Page 06
2.1.4 Connecting an auxiliary source
component to the ASR Emitter
2.1.5 Connecting a pair of speakers to the ASR Emitter
2.1.6 Connecting the external power supply/supplies Page 07
2.2 Additional connections (on special order) Page 08
2.2.1 Connecting a high-levelsource component to
the balanced inputs of the ASR Emitter
2.2.2 Connecting a turntable to the ASR Emitter
2.2.2.1 Adjusting the ASR Plug-in phonoboard Page 09
2.2.3 Connecting a headset to the ASR Emitter Page 10
2.2.4 Connecting a second pair of speakers to the ASR Emitter
2.2.5 Connecting the ASR Battery Power Supply
(available only for the ASR Emitter Exclusive-versions!)
3.0 Operating the ASR Emitter Page 11
3.1 General operation of the ASR Emitter
3.2 Front panel control knobs of the ASR Emitter Page 12
3.3 Operating the ASR Emitter via remote control Page 13
3.4 Adjustments of the ASR Emitter Page 14
4.0 Protection circuits of the ASR Emitter Page 16
4.1 Impedance-check before the ASR Emitter is switched on
4.2 Distortion- and overload-protection circuit
4.3 Over-temperature protection circuit Page 16
5.0 Maintenance of the ASR Emitter
5.1 Cleaning the ASR Emitter
5.2 Touble-shooting Page 17
6.0 Facts about the ASR Emitter Page 19
6.1 How the separate battery power supply works
6.2 How the ASR Emitter works
6.3 Technical data Page 20

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 2
Dear music lover,
all of us at ASR would like to offer thanks and congratulations to you for purchasing
the ASR Emitter High End Integrated Amplifier. We sincerely believe that your ASR
Emitter will bring you many years of musical pleasure and enjoyment.
All ASR products are handmade with greatest care to details and with high-grade selected
parts. Enjoy your music even more with this true High End Integrated Amplifier!
While every new owner ist anxious to begin listening, we encourage you
to take a few minutes to read this manual and familiarize yourself with
the full capabilities of the ASR Emitter.


2001 Klaus Henkes (http://www.hifihenkes.de) for ASR Audiosystems
1.0 Receiving the ASR Emitter – First moves
1.1 Unpacking the ASR Emitter
Use care in unpacking your ASR Emitter. Inspect it for any shipping damage and call your
dealer immediately if any is found. Do not plug your ASR Emitter into an AC outlet if
you find shipping damage.
Accessories
Provided with the ASR Emitter are the following asseccories:
a) Integrated amplifier ASR Emitter
(main unit with three golden or chromium control knobs
b) Separate power supply (ASR Emitter I = one, ASR Emitter II = two)
(no controls) incl. one/two shielded ASR powercord(s)
c) Repair-set
(consisting of: 1x 3 mm-Inbus-wrench, replacement srews M4 x 16,
replacement fuses 1 Amp/slow for the battery power supply)
d) Care-set
(consisting of: 1x bottle of antistatic plastic-cleaner and a special cloth
e) (available only for the ASR Emitter Exclusive versions)
Battery Power Supply
(no controls) incl. one powercord
1.2 Setting up the ASR Emitter
Check to make sure, your ASR Emitter has been manufactured for operation at your
AC line voltage. Attempting to use your ASR Emitter at any voltage other than the
specificated on the battery power supply´s back side may damage the unit. Damage
caused by improper operation is not covered by ASR warranty. If the voltage
specified is different from your AC voltage, contact your ASR dealer.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 3
The heatsinks of the ASR Emitter radiate some heat, so please place the main unit in a
place, where air can circulate around the heatsinks. Never put a unit on top of the main
unit. The ASR power supplies (including the ASR battery power supply) do not radiate a lot
of heat. Do not stack the ASR power supplies or place the ASR power supply unit(s) too
close to the main unit. Place the main unit close to your source components and use a
cable as short as possible to connect your source components to the main unit. of the ASR
Emitter.
1.3 Important safety precautions
To get the best performance from your ASR Emitter, and for your own safety, please read
and follow these important safety instructions.
1. Before operating the ASR Emitter Integrated Amplifier, please read ALL operating and
safety instructions.
2. Never place the ASR Emitter or the (battery) power supply unit(s) near heat sources
such as radiators, fireplaces, stove, or other appliances that produce heat. Avoid
placing the ASR Emitter where it will be subject to direct sunlight or low temperatures.
3. This product is equipped with three prong AC powercords which include an earth
ground connection. To prevent shock hazard, all three connectors must always be
used. If your electrical outlets will not accept this type of plug, an adaptor may be
purchased. If an adaptor is necessary, be sure it is an approved type and that it is used
properly., supplying an earth ground. If you are not sure of the integrity of your home´s
electrical system, contact a licensed electrician for assistance.
4. AC extension cords are not recommended for use with this product. If an extension
cord must be used, be sure it is an approved type and has sufficient current carrying
capacity to power this product.
5. Before cleaning the ASR Emitter, always turn the unit off and disconnect the power
supply cord.
6. If you smell smoke, or an abnormal smell, immediately turn the ASR Emitter off and
unplug the unit from the power supply and contact your ASR dealer.
7. Unplug unit if it becomes wet.
8. Replace fuse only with the exact type originally included.
external power supplies ASR Battery Power Supply
(only available for the ASR Emitter
Exclusive versions)
110 Volt: 10 amps, slow-blo 2 amps, slow-blo
120 Volt: 2 amps, slow-blo 2 amps, slow-blo
220 Volt: 5 amps, slow-blo 1 amp, slow-blo
240 Volt: 1 amp, slow-blo 1 amp, slow-blo
9. THERE ARE NO SERVICEABLE PARTS INSIDE THE ASR EMITTER!
-Do not attempt to repair or modify your ASR Emitter.
-All service should be performed by qualified service personnel.
-Do not open the unit while it is attached to the AC outlet.
1.4 The ground lift switch
The ground lift switch is located on the backpanel of the ASR Emitter above the AC input.
Switching to position „1“ will connect the ground of the power supply to the ground of the
connected source components (on the RCA inputs). Audio ground should be once

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 4
connected to the power supply ground in every audio system. If connected more often
hum can occur. Switching to position „2“ disconnects the ground connection as described
above. In any doubt: please switch the ground lift switch to „1“.
2.0 Connecting the ASR Emitter to your system
ATTENTION: Inputs (cables from source compnonents) and outputs (cable to speakers)
can be safely connected to the ASR Emitter when the units (left) control knob is set to „0“
(= off). Be sure that the least cable you connect is/are the powercord(s) to the AC outlet.
To obtain the best performance please make sure, that all your cables from and to the
ASR Emitter are as short as possible. The ASR Emitter´s main unit should be placed close
to your source components. If your source components are equipped with „fixed“ and
„variable“ outputs always use the „fixed“ outputs to connect the component to the ASR
Emitter. All standard inputs of the ASR Emitter are high-level-inputs and are identical, just
the marking ist different. Only exception from this rule: if your ASR Emitter is equipped with
the ASR plug-in phonoboard (on special order, see 2.2.2), do not use the input „PH“ to
connect your high-level source components.
On the backpanel of the main unit the RCA input sockets are located left and right above
the speaker outputs. The RCA sockets are named (from left to right) „Ph, Ta, CD, Tu, DT,
Vi“. The RCA input sockets for the right channel are marked with a red ring, for the left
channel with a black ring.
Tip: please use high quality interconnects, speakercables and powercords to connect your
ASR Emitter. The performance of your system will be increased by using the best
affordable cables.
Burn-in time
Straight out of the box, the performance of the ASR Emitter is not as impressive as the
performance of a unit that has been broken in. Why?
Each ASR Emitter needs at least 100 to 200 hours of playing music to fully break-in.
Especially the ASR Emitter Exclusive versions with the large amounts of capacitors inside
have to stabilize over the initial 200 hours of playing.
Tip: connect your CD player to the ASR Emitter and play a CD with dynamic music or a
dedicated burn-in-CD in repeat mode a few times (ASR Emitter volume level should be set
between 20 and 30).
If you are not playing the ASR Emitter for more than a week, the same effect will occur, but
not as apparent as when connected for the first time. After one or two days of listening the
ASR Emitter sounds as good as the unit did before.
Tip: if you are absent for more than three days, please disconnect all the powercords from
the AC outlet. This is the safest and cheapest way to prevent your hifi system from any
damages.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 5
The ASR Battery Power Supply should not be disconnected from the AC outlet for more
than 10 days. Like any other high-end amplifier, the ASR Emitter sounds best about one
hour after you put the left control knob to the „1“ (ON) position.
Tip: about 30 minutes before you want to listen to music, turn the ASR Emitter on. Just
turn the ASR Emitter off, if you are not listening to music for more than two hours.
2.1 Standard connections
As a standard version the ASR Emitters are equipped with high-level inputs with RCA
sockets (one of the inputs is a direct input), one (two) RCA tape outputs and one pair of
speaker outputs as direct outputs.
2.1.1 Connecting high-level source components to the ASR Emitter
High-level source components are all audio components except turntables.
Every ASR Emitter is equipped with the following (identical) RCA inputs: „Ph“ = phono (if
your ASR Emitter is equipped with the ASR plug-in phonoboard, this is NOT a high-level
input anymore!), „Ta“ = tape, „CD“ = CD player, „Tu“ = Tuner, „DT“ = digital tape, „Vi“ =
vcr. The additional RCA sockets (on the backpanel, outer left/right side) are tape outputs –
the ASR Emitter I is equipped with one, the ASR Emitter II with two tape out RCA sockets.
These outputs are named „Out“.
Connect each of your source components to one input. Attention: connect the right outputs
of your source components to the right inputs of the ASR Emitter (same for the left
channel) and make sure, the RCA connectors fit tight.
2.1.2 Connecting a high-level source component to the
direct input of the ASR Emitter
The RCA input sockets of the direct input are directly connected to the relais volume
control via silverwire, the grounding is separately routed. The direct input was especially
developed for audio systems with just one source component (for example a CD player).
The signal of the direct input passes two relais less than the signals of the other inputs.
The RCA sockets of the direct input are located between the „Out“- and the „Vi“ RCA
sockets on the backpanel of the ASR Emitter. Connections to the direct input should be
made like described in 2.1.1.
The direct input can not be switched via the input selector (right control knopb on
frontpanel of the ASR Emitter). If you have connected a source component to the direct
input and switch the input selector to another input, where a source component is
connected and playing, you will hear the signals of both inputs.
Tip: if you are using the direct input, put the input selector to a position, where no other
source compnoent is connected. If your ASR Emitter is equipped with a balanced input, do
not put the input selector to „CD“ while having a source component connected to the direct
input. If you want to listen to another source component than the one, that is connected to
the direct input, please turn the direct connected unit off or disconnect ist powercord from
the AC outlet.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 6
2.1.3 Connecting a tape deck to the ASR Emitter
The ASR Emitter I is equipped with one, the ASR Emitter II with two tape outputs
(additional tape output on special order).
Connect the „Line out“ or „Tape Ot“-RCA sockets on your tape deck to the RCA input
sockets „Ta“ on the ASR Emitter and the „Line In“- or „Tape In“-RCA sockets on your tape
deck to the „Out“-RCA sockets (sockets closest to the heatsinks) on the ASR Emitter.
Additional tape decks or open-reel decks can be connected to each RCA input of the ASR
Emitter. To make recordings, put the input selector knob to the position, where the source
that you want to record from, is connected. The signal of the chosen source component
will be routed to the „Out“-RCA sockets. Tape-to-tape recordings are possible in the same
manner too.
ATTENTION: during a recording or when your tape deck is ready to record, DO NOT
switch the input selector knob to the input, where your (recording) tape deck is connected
to. Switiching to the „Ta“-input means switching tape in- and output together – a feedback
will be the result. This feedback may cause damages to your connected speakers.
2.1.3 Connecting an auxiliary source component to the
ASR Emitter
The „Ta“ input of the ASR Emitter may as well be used to connect any auxiliary source
components like equalizer. Connect the „Line out“-RCA sockets on your auxiliary
component to the RCA input sockets „Ta“ on the ASR Emitter and the „Line In“-RCA
sockets on your auxiliary component to the „Out“-RCA sockets (sockets closest to the
heatsinks) on the ASR Emitter. Pressing the „monitor“-button on the ASR Emitters
frontpanel or on the remote control will bring the signals of the auxiliary component into the
signalpath of the chosen input on the ASR Emitter.
2.1.5 Connecting a pair of speakers to the ASR Emitter
ATTENTION:
Put the left control knob to the „0“ (Off) position before you connect or disconnect any
speakercables. check all speakercabels for shortcuts. This will keep your speakers and the
other connected components from being damaged. A shortcut is easily detectable and is
not covered by the ASR warranty!
The standard versions of the ASR Emitter are equipped with a direct (speaker) output. To
increase the performance of the ASR Emitter, the speaker outputs are directly connected
to the output transistors and named „Direkt“.
An ASR Emitter with direct output differs from an ASR Emitter with a relais-switched
speaker output (read 2.2.5):
-while switching the ASR Emitter on or off, there might be a audible sound in your
speakers
-before switching the ASR Emitter to the „On“-position, the DC resistor can not check, if
a shortcut has occured on the speakers – this means: all speakercables HAVE TO BE

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 7
checked before the ASR Emitter is initially switched to the „On“-postion
-if a technical defect occurs, the speaker output can not be turned off; in case of trouble,
the protection circuitry shuts down the speaker outputs
-in case of overmodulation the ASR Emitter with direct output will be immediately and
completely turned off to protect your speakers; to listen to music again, the left control
knob on the ASR Emitter has to be set to the „0“-(Off)-postion and then to the „1“-(On)-
position
The speakers connected to the ASR Emitter should have an impedance that is no lower
than 1,5 ohms (20Hz to 20kHz). If the ASR Emitter is equipped with a relais-switched
speaker output (named „A“) and/or with a second pair of speaker outputs, an impedance
check will be automatically made, before the unit switches from „0“ to the „On“ position.
The impedance check will not let the ASR Emitter switch to the „On“-position, when the
measured value is under 1,5 ohms.
The speaker outputs are located on the back panel of the ASR Emitter below the RCA
input sockets. Please connect the „minus“ (black on most speakercables) of the right
speakercables to the „minus“ (black) terminal on your speaker, than the other end of the
cable to the right black terminal on the ASR Emitter, and the „plus“ (red) of the right
speakercables to the „plus“ (red) terminals of your speakers, than the other end of the
cable to the right red terminal on the ASR Emitter - same for the left channel.
Do not reverse „minus“ (black) and „plus“ (red) – neither on the ASR Emiter nor on your
speakers.
If the ASR Emitter is equipped with one speaker output, the output relais for A and B are
switched together to improve the output resistance. The display on the frontpanel of the
ASR Emitter shows „A+B“.
2.1.6 Connecting the separate power supply/supplies
to the ASR Emitter
Every ASR Emitter is equipped with external power supplies. The ASR Emitter I has one
external power upply, the ASR Emitter II has two external power supplies. Due to the very
high power capability of the ASR Emitters, the power supplies MUST be connected
directy. to wall AC outlets.
Connecting the power supplies to the ASR Emitter is quite simple, please pay attention to
the following order:
a) turn off the ASR Emitter (left control knob to „0“-position) and disconnect the
powercords from the AC outlet, disconnect the powercord(s) from the AC input of
the power supply/supplies
b) carefully connect the heavy silver cable (with grey plug featuring 30 contacts)
hanging out of the backpanel of the ASR Emitter I´s main unit to the socket on the
backpanel of the external power supply. The ASR Emitter II features two cables
hanging out of the backpanel. Please connect the two cables (with 30 contacts) to
each of the two power supplies; both power supplies are identical.
c) connect the powercords to the AC input of the power supply/supplies
d) connect the powercords to the AC outlet

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 8
If you want to disconnect the external ASR power supply/supplies please pay attention to
the following order
a) turn off the ASR Emitter (left control knob to „0“-position)
b) disconnect the powercord(s) from the AC outlet, disconnect the powercord(s)
from the AC input of the power supply/supplies
c) wait until the LEDs inside the ASR power supply/supplies are not shining anymore
d) disconnect the heavy silver cable from the power supply/supplies
If the connection between the ASR Emitter´s main unit and the power supply/supplies has
been disconnected before the LEDs have not shone anymore, please wait at least two
hours before you connect the power supply/supplies again. This will avoid damage on your
audio system.
Tip: powercords have a big influence on the obtainable sound quality. We recommend to
use the ASR Active Powercord on all the components in your audio system.
2.2 Additional connections (on special order)
Every ASR Emitter can be equipped with a lot of in- and outputs on special order at
additional cost. The most common connections are described here.
2.2.1 Connecting a high-level source component to the balanced
input of the ASR Emitter
The ASR Emitters (that is not equipped with the ASR plug-in phonoboard) can be
equipped with a balanced input. This input can easily be choosen by switching the input
selector (right control knob on the frontpanel) to the „CD“-position. The RCA input sockets
on the backpanel named „CD“ are not that sensitive (not so loud) than the balanced inputs.
You can connect either every high-level source component or even a phono pre-amplifier
(like the ASR Basis Exclusive) to the balanced inputs of the ASR Emitter. A balanced
cable (with male-/female XLR plugs) can - due to international standards – only be
connected one way: the male XLR plug is connected to the source component and the
female XLR plug is connected to the ASR Emitter.
Tip: if oyu have to use a cable longer than approximately ten feet between a source
component and the ASR Emitter, you should use a balanced connection. Balanced
connections are less suspectible for disturbances.
2.2.2 Connecting a turntable to the ASR Emitter
Every ASR Emitter (that is not equipped with a balanced input!) can be equipped with the
ASR plug-in phonoboard. If an ASR Emitter is equipped with the ASR plug-in phonoboard
a turntable with Moving Magnet- oder Moving Coil-cartridge can be directly connected to
the ASR Emitter. The turntable can be connected to the RCA input sockets named „Ph“ on
the backpanel of the ASR Emitter. The groundig cable of the turntable (if there is one) can
be connected to one of the black speaker output terminals.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 9
The ASR plug-in phonoboard can be retrofitted. Simply follow the described steps:
-before you put the phonoboard into the ASR Emitter, please adjust it acoording to the
cartridge you are using (see 2.2.2.1)
-turn off the ASR Emitter (left control knob to „0“-position) and disconnect the
powercords from the AC outlet, disconnect the powercord(s) from the AC input of the
power supply/supplies
-carefully release the bolts of the topplate of the ASR Emitter (inside the heatsinks) and
remove the topplate
-at the end of the pc-board in the middle (view from the front) there are two black 10fold
sockets (right were the word „phono“ is written on the pcb); there are two bridge-wires
in this sockets (one for each channel) - carefully remove this bridge-wires
-carefully insert the ASR plug-in phonoboard into the two black 10fold sockets; the
parts on the phonoboard facing the frontpanel of the ASR Emitter)
2.2.2.1 Adjusting the ASR plug-in phonoboard
There is a 6fold DIP switch for each channel in the middle of the phonoboard to adjust the
phonoboard according to your cartridge. The input resistance can be adjusted on DIP
switches no. 1 and 2, the gain can be adjusted on the DIP switches no. 3 to 6.
a) the DIP switches have two different settings: „on“ or „off“; be sure, that the switches
are correctly set (when set correctly, you will hear a slight „klick“)
b) please set the DIP switches exactly the same for the right and the left channel (only
exception from this rule: your cartridge needs to be balanced because of different
output from the right and left channel)
c) the ASR plug-in phonoboard was not developed to work with very low output MC
cartridges
Adjusting the input resistance
We know from experience that if you are using an adjustment with a lower input resistance
the ambiance is improved with limited dynamics, with a higher inputresistance the overall
performance is brighter and more dynamic, but definition and precision are limited. You
can easily find out the perfect setting for you: make an adjustment and listen to the
system. the best adjustment is the one you like best!
DIP switch no. 1 2 Input resistance
47kΩ −− −− for MM- und High Output MC cartridges
100kΩ −− ON for medium output MC cartridges (Denon/Yamaha)
22 Ω ΟΝ −− for low output MC cartridges (Ortofon MC 200)
18 Ω ΟΝ ΟΝ for very low output MC cartridges (limited)

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 10
Setting the gain
The gain can easily be adjusted on DIP switches no. 3 to 6. Please put just ONE switch to
the „on“-position. Maximum gain is obtained by putting the DIP switches no. 3 to 6 to „on“.
The following chart shows, how the gain can be set:
switch no. „ON“ all four 3 4 5 6 none
Gain: +34dB +26dB +20dB +14dB +9dB minimum
*1 *2 *3 *4
*1 = for extreme low output MC cartridges (limited)
*2 = for very low output MC cartridges
*3 = for low output MC cartridges (limited)
*4 = for MM cartridges (minimum gain)
Please set the DIP switches exactly the same for the right and the left channel (only
exception from this rule: your cartridge needs to be balanced because of different output
from the right and left channel). The gain should be set as low as possible.
2.2.3 Connecting a headset to the ASR Emitter
Every ASR Emitter can be equipped with a headset output, either on the front- or the
backpanel. Connection can be made via a gold-plated 6,3mm-socket. The headset output
can be easily chosen by switching the left control knob to the „Kh“-position or via remote
control. Two yellow LEDs indicate that the headset output is selected. The 6,3mm-plug
must not be disconnected, when the headset is not in use.
2.2.4 Connecting a second pair of speakers to the ASR Emitter
Every ASR Emitter I can be equipped with an additional speaker output. The speaker
outputs are named „A“ and „B“. Every ASR Emitter II can be equipped with up to two
additional speaker outputs. The speaker outputs are named „A“, „B“ and „C“. The
additional speaker outputs on the ASR Emitter can be either selected single („A“ or „B“, „A“
or „B“ or „C“) or together („A“ and „B“, „A“ and „B“ and „C“). The chosen mode is shown in
the display on the frontpanel. If an ASR Emitter has additional speaker outputs, it has no
longer a direct output. The speaker outputs are switched via relais then.
Connect the additional speakers according to 2.1.5.
2.2.5 Connecting the ASR Battery Power Supply
(available only for the ASR Emitter Exclusive versions)
The input stages of the ASR Emitter Exclusive versions can be supplied with an optional,
external ASR Battery Power Supply. The standard power supply/supplies should be
connected before you connect the ASR Battery Power Supply to the ASR Emitter
Exclusive (refer 2.1.6).

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 11
Connecting the ASR Battery Power Supply to an ASR Emitter Exclusive is quite simple,
please pay attention to the following order:
a) turn off the ASR Emitter Exclusive (left control knob to „0“-position) and
disconnect the powercords from the AC outlet, disconnect the powercord(s) from
the AC input of the power supply/supplies
b) carefully connect the heavy silver cable (with grey plug featuring 20 contacts)
hanging out of the backpanel of the ASR Emitter Exclusive´s main unit to the socket
on the backpanel of the ASR Battery Power Supply.
d) connect the powercords to the AC input of the power supply/supplies and to the AC
input of the ASR Battery Power Supply.
d) connect the powercords to the AC outlet
If you want to disconnect the external ASR Battery Power Supply please pay attention to
the following order
c) turn off the ASR Emitter Exclusive (left control knob to „0“-position)
d) disconnect all the powercords from the AC outlet, disconnect the powercord(s)
from the AC input of the power supply/supplies and the ASR Battery Power Supply.
c) wait until the LEDs inside the ASR Battery Power Supply are not shining anymore
d) disconnect the heavy silver cable from the ASR Battery Power Supply
If the connection between the ASR Emitter Exclusive´s main unit and the ASR Battery
Power Supply has been disconnected before the LEDs have not shone anymore, please
wait at least two hours before you connect the power supply/supplies again. This will avoid
damage on your audio system.
3.0 Operating the ASR Emitter
3.1 General operation of the ASR Emitter
All functions of the ASR Emitter can be controlled by the three golden or chromium knobs
on the frontpanel of the main unit. The operation via remote control is even more
convenient. The status of the ASR Emitter is shown in the display on the frontpanel. If
there are any malfunctions inside the ASR Emitter, a red LED will indicate this
immediately. How to react in case of malfunctions is referred to in chapter no. 4.0 and 5.2.
The external power supply/supplies of the ASR Emitter can be operated in an energy
saving mode: all the internal voltages of the ASR Emitter are cut in half in this mode. After
setting the left knob on the frontpanel from „Standby“- to „1“-position, every ASR Emitter is
operating in the energy saving mode for one minute.
After connecting the ASR Emitter (see chapter 2.0), please set the left knob to the
„Standby“-position. Now you can either set the left knob to the „1“ (On)-postion or use the
remote control to turn the unit on

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 12
3.2 Front panel control knobs of the ASR Emitter
On-/Off-Selector (= left knob)
Position
(referred to standard
ASR Emiter)
Function
Off The unit is turned off.
Before you switch from „Standby“ to „Off“ please wait at least
20 seconds. The ASR Emitter needs this time, to run a switch-
off-programm.
Standby In this position
-the ASR Emitter can be completely controlled by remote
control
-you can record from source to tape
1 volume can be adjusted from 0 to 61dB, normal operating
position, energy saving mode can be activated
2 volume can be adjusted from 0 to 76dB, energy saving mode
can not be activated.
Additional positions
(for ASR Emitters
with special
features)
Function
A1 (speaker-)outputs „A“, normal perating position
B1 (speaker-)outputs „B“, normal operating position.
Kh the headset-output is active, the speaker-outpu(s) are muted
A2 (speaker-
)outputs „A“, volume control from 0 to 76dB, energy
saving mode can not be activated.
B2 (speaker-
)outputs „B“, volume control from 0 to 76dB, energy
saving mode can not be activated.
A+B1 (speaker-)outputs „A“ and „B“ selected to play together,
normal operating position
If the ASR Emitter is controlled via remote control, the position of the left knob may not
exactly correspond with the actual operating mode. The chosen input is indicated by aN
LED above the (right) input selector knob.
Volume control (= middle knob)
The volume of the ASR Emitter is controlled with a relais step control. The middle knob
works as an impulse sender and can be turned around 360°. The chosen volume will be
displayed in numbers from 0 to 76. In „Standby“-mode the volume can be preselceted up
to 49 – this avoids too high sound pressure levels when turning the ASR Emitter on.
Input selector (= right knob)
In the standard version of the ASR Emitter, the input selector has six positions: six high
level inputs and one tape input. To select an input, please move the input selcetor knob to
the desired input. The chosen input is indicated by a yellow LED.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 13
Monitor-switch (= below the input selcetor knob)
As an option, the ASR Emitter can be equipped with a tape monitor switch. When the ASR
Emitter is turned on, pressing the tape monitor switch allows you to listen to the source,
that you are recording to the tape unit connected to the „Ta“-input. If the ASR Emitter is in
the „Standby“-mode, pressing the tape-monitor switch activates the adjustments for the
input level adjust, energy saving mode, balnace and display brightness (refer chapter no.
3.4).
3.3 Operating the ASR Emitter via remote control
All functions of the ASR Emitter can be controlled via remote control. To operate the ASR
Emitter via remote control, put the left knob to the „Standby“-position. If you press a key on
the remote control, the display lights up and shows the selected function. When using the
remote control, the three control knobs on the frontpanel of the ASR Emitter are not
moving.
A Philips remote control is supplied with every ASR Emitter. This remote control can learn
codes from up to five other components and control these units. Please read the
instruction manual of the Philips remote control carefully.
Functions of the remote control buttons
Button Function
TV-VCR-SAT-CD-
Audio 1-Audio 2
(grey)
selects the unit, that you want to control via remote control,
(all functions for operation of the ASR Emitter are saved under
„Audio 1“), press the grey button as long until the green LED
above the name of the unit, that you want to control,lights up
I/O
(red, at the top, right) ASR Emitter on/off
1 – 6 for direct input selection:
1 = „Ph“, 2 = „Ta“, 3 = „CD“, 4 = „Tu“, 5 = „DT“, 6 = „Vi“
7switches the tape monitor input
equivalent to pressing the tape monitor button (optional) on
the frontpanel of the ASR Emitter
8resets the ASR Emitter to factory settings (volume will be set
to „40“)
9 and 0 switches the output(s) of the ASR Emitter,
equivalent to turning the left knob one position incl. on/off
Mute lowers the volume (- 15dB), pressing the button again
increases the volume again (+ 15dB)
Vol + increases the volume
the display lights up and indicates the increase
Vol - lowers the volume
the display lights up and indicates the decline
Prog + switches the inputs clockwise
LED above the input selector knob indicates the chosen input
Prog - switches the inputs anticlockwise
LED above the input selector knob indicates the chosen input

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 14
-/-- and AV selects the adjust mode for balance, energy saving mode,
display brightness etc. and input level.
press the black button as long until the mode you want to
adjust is displayed; adjustments can be made with the
„Volume +“ and „Volume -“-buttons
light-yellow button pressing this button illuminates the remote control
On request, the ASR Emitter can be delivered with a (smaller) remote control which only
contains the followoing functions: power on/off, volume up/down, input selcetion, tape
monitor/adjust mode-button.
3.4 Adjustments of the ASR Emitter
The ASR Emitter offers a lot of possibilities to adjust the unit. Most of these adjustments
have to be set just once. Put the left knob on the ASR Emitter to the „Standby“-position.
The adjustment menu can be easily accessed by pressing either the „Menu“- or the „-/--“-
button on the remote control. Alternative you can access the menu by pressing the „Tape
Monitor“-button on the frontplate of the ASR Emitter (if supplied).
Please press the button on the remote control (or the „Tape Monitor“-button on the
frontplate) until the parameter, that you want to adjust, appears flashing in the display. To
adjust the parameter, please press either the „Volume +/--button on the remote control or
move the middle knob on the ASR Emitter to the right (+) or left (-). To save your individual
adjustments please put the left knob of the ASR Emitter to the „Off“-postion and keep the
unit off for at least ten seconds. All adjustments are stored now.
Adjusting the channel balance
Please press the button on the remote control (or the „Tape Monitor“-button on the
frontplate) once – the orange LED „Balance“ is flashing. Now either use the „<<“- (=
increases left channel volume) and „>>“-button (= increases right channel volume) on the
remote control or the middle knob of the ASR Emitter to adjust the channel balance. If you
use the „<<“-buttons, the left channel will be louder and have a orange „Balance“-LED
illuminated and vice versa for the right channel. If both channels play at the same level,
each channel has an orange „Balance“-LED illuminated.
Adjusting the energy saving mode
You can easily adjust the volume level, where the ASR Emitter switches from energy
saving mode to normal operating mode in a wide range from 01 to 51 (= display). If you set
the display to „01“ the energy saving mode in enabled. The factory setting is „35“.
Please press the button on the remote control (or the „Tape Monitor“-button on the
frontplate) twice – the green LED „Energie“ is flashing. Now either use the „<<“- (= ASR
Emitter switches into normal operating mode at lower level) and „>>“-button (= ASR
Emitter switches into normal operating mode at higher level) on the remote control or the
middle knob of the ASR Emitter to adjust the energy saving mode.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 15
Adjusting the display mode and brightness
The display of the ASR Emitter can be adjusted in brightness, parts of the display can be
illuminated all the time or not and so on. The actual setting will be displayed numerical.
Factory setting is „07“: maximum brightness and the display is switched off 10 seconds
after the last tunr of the knobs or receiving a signal from the remote control.
Please press the button on the remote control (or the „Tape Monitor“-button on the
frontplate) three times – the two orange display numers are flashing. Now either use the
„<<“- and „>>“-button on the remote control or the middle knob of the ASR Emitter to
adjust the display mode (see chart below).
left orange display number
(= mode) Adjustments
0 display switches totally off after ten seconds
1 the LEDs above the left and right knob on the
frontplate of the ASR Emitter are illuminated
constantly
2 the two numbers of the display are illuminated
constantly
3 aquivalent to mode 1 and 2 together
4 mode LEDs (i. e. Balance etc.) are illuminated
constantly
5 aquivalent to mode 1 and 4 together
6 aquivalent to mode 2 and 4 together
7 the whole display is illuminated constantly
right orange number
(= brightness) Adjustments
0 to 7 0 (= off) to 7 (= max. brightness), altering the volume
will illuminate just the orange numbers
8 to F 8 (= off) bis F = (= max. brightness) altering the
volume will illuminate the whole display
Adjusting the input level
To avoid difference in volume when switching from one input to another, the input level of
each high level input can be adjusted. The input with the lowest level (like a phono
preamplifier or an analog tuner) should be left unaltered and work as a reference to adjust
the input level for the other high level inputs of the ASR Emitter.
Please choose the input that you want to adjust – either via remote control or with the right
knob. Please press the button on the remote control (or the „Tape Monitor“-button on the
frontplate) four times – the orange „Pegelaus“-LED is flashing. Now either use the „Volume
+“- (increases input level) or „Volume -“-button (decreases input level) on the remote
control or the middle knob of the ASR Emitter to adjust the input level for the chosen input.
For all other inputs do equal.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 16
Adjusting the configuration of the ASR Emitter
The ASR Emitter is equipped with internal DIP switches to configurate the unit. Factory
setting depends on the features of the individual unit. If you want to re-configurate your
ASR Emitter individually with these DIP switches, please contact your authorized ASR
Audiosystems dealer.
4.0 Protection circuits of the ASR Emitter
Every ASR Emitter is equipped with several protection circuits to avoid any damage on the
unit itself and on your loudspeakers. Trouble during operation will be indicated by a
flashing red LED „Störung“. The ASR Emitter and the voltage supply is switched off, if the
protection circuits detect over-temperature, short circuit and/or repeated overloads during
operation. If the protection circuits switch the ASR Emitter off, put the left knob to the „Off“-
position and press the round „Status“-button on the remote control to cancel the „On“-lock.
4.1 Impedance-check before the ASR Emitter is switched on
If your ASR Emitter is equipped with more than one pair of speaker output-terminals
and/or a headphone output, the direct current (DC) impedance of the connected
loudspeakers is checked by an automatic circuit during the countdown from „99“ to „11“,
when the ASR Emitter is switched on. If the left knob is put to the „Standby“-position, this
check will be performed, too. The ASR Emitter will not be switched on and the red LED
„Kurzschluß“ will be flashing, if the measured impedance is smaller than 1,5 ohms. If this
occurs, the speakercables have to be detached from the ASR Emitter. If the red LED is still
flashing, please contact your authorized ASR Audiosystems dealer.
4.2 Distortion- and Overload-protection circuit
This protection switches the ASR Emitter off in case of overload. Overload means, that the
required output voltage is higher than the operational voltage of the amplifier. Distortion
increases and represents a danger for the midrange- and treble drivers of the connected
loudspeakers.
The protection circuits of the ASR Emitter detect distortion effectivly. As soon as the
protection circuits detect distortion, the distorted channel of the ASR Emitter is switched off
– the display indicates the switch off with two flashing LEDs (red) „Overload“ and „Offset“.
These two LEDs are flashing, too, if the (loudspeaker-)output(s) are not free of direct
current (DC).
4.3 Over-temperature protection circuit
The ASR Emitter is equipped with a sensitive over-temperature protection circuit.
Temperature sensors are located at the large heatsinks of the ASR Emitter. If this sensors
detect a temperature > 110°F, the ASR Emitter will be switched off. The display indicates
the switch off with a flashing LED (red) „Übertemp“. Please put the left knob on the ASR
Emitter´s frontplate to the „Off/0“-postion. After the the amplifier is cooled off you can
switch the amplifier on again.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 17
5.0 Maintenance of the ASR Emitter
5.1 Cleaning of the ASR Emitter
The standard cleaning set includes everything you need to take care of the finish of the
ASR Emitter: antistatic plastic cleaner and a special cloth. Please do not use any other
cloths than the supplied one to clean the acrylic glass of the ASR Emitter.
The use of the plastic cleaner is quite simple: spray some of the liquid on the acrylic glass
and spread it with the cloth. Clean the acrylic glass, wipe off the liquid and polish it with the
cloth. The knob on the frontplate is sealed and may not be cleaned with anything else than
a soft cloth with no liquids or chemicals on it.
Tip: if your are not using your equipment for a certain time cover it with a soft, fluff-free
cloth – you avoid most of the soiling on your equipment.
Removal of scratches
Most of all scratches can easily be removed by using acrylic poishing paste. Please use as
specificated by manufacturer. After the use of acrylic polishing paste you should use the
plastic cleaner. The ASR warranty does not cover any damage caused by using any other
cleaner than the supplied one.
5.2 Trouble-shooting
Malfunction during operation
The ASR Emitter is equipped with a digital controller to control all functions of the amplifier.
If any malfunction occurs, please follow these steps:
-please put the left knob on the ASR Emitter´s frontplate to the „Off/0“-position and wait
a least 20 seconds
-put the left knob to the „Standby“-postion
-now you can switch the ASR Emitter on by either putting the left knob to the „1“-postion
or by pressing the „On/Off“-button on the remote control
5.2.1 No LED lits when the unit is turned on
!! First of all switch off the ASR Emitter !!
a) In postion „Off“ (left knob): is a red LED shining in the external power
supply/supplies?
No go on with b)
Yes Please contact your authorized ASR Audiosystems dealer
b) Is/Are the heavy silver connection cable(s) from the main unit properly connected to
the external power supply/supplies?
No please connect the silver cable(s) properly
Yes go on with c)
c) Is/Are the powercord(s) properly connected to the external power supply and/or the
AC outlet?
No please connect the powercord(s) properly

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 18
Yes go on with d)
d) Detach the powercord(s) from the AC outlet. Check the fuse at the power input on
the external power supply/supplies – is it/are they OK?
No please replace fuse(s) (110V version = 10 amps, slow, 120V version = 2
amps, slow)
Yes please contact your authorized ASR Audiosystems dealer!
5.3.2 External battery power supply: no LED lits when the unit is
switched on (only for the ASR Emitter Exclusive versions
with optional external battery power supply)
!! First of all switch off the ASR Emitter !!
a) Is the heavy silver connection cable from the main unit properly connected to the
external battery power supply?
No please connect the silver cable properly
Yes go on with b)
b) Is the powercord properly connected to the external power supply and/or the AC
outlet?
No please connect the powercord properly
Yes go on with c)
c) In position „Off“: are three yellow LEDs shining in the external battery power
supply?
No Charge the batteries in the external battery supply. Are the LEDs still not
shining?
Yes please contact your authorized ASR Audiosystems dealer!
Yes the batteries are charged, go on with d)
d) Check the fuse at the power input on the external battery power supply – is it OK?
No please replace fuse (2 amps, slow)
Yes please contact your authorized ASR Audiosystems dealer!
5.3.3 The ASR Emitter is not reacting on signals from the remote
control
a) Is the left knob on the frontplate of the ASR Emitter in the „1“- or „2“-postion?
No please put the knob to the „1“-position.
Yes go on with b)
b) Is the Philips remote control set to the „Audio 2“ –position (below the red „On/Off-
button)?
No please choose the „Audio 2“-position
Yes go on with c)
c) Is the LED below the „Audio 2“-postion flashing green when pushing a button on
the remote control?
No, the LED is flashing red or not at allplease insert fully charged new
batteries!
Yes please contact your authorized ASR Audiosystems dealer!

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 19
The acrylic glass parts of the main unit are „cracking“ while warming up/cooling off
The main unit of the ASR Emitter is assembled with acrylic glass and heatsinks of
aluminium. These two materials expand differently during the warming up/cooling off-
phase of the amplifier. Remedy: loosen the screws (located in the heatsinks) of the front-
and/or backplate of the ASR Emitter.
Different channel volumes during phono playback
Please check if all DIP switches are set the same for both channels and are clicked into
place properly.
Just in case: repair
If all the help we provided in this trouble-shooting-section of the manual did not help to
make the ASR Emitter operate properly, please contact your authorized ASR
Audiosystems dealer. Please pack the units into the original ASR boxes and with the
original ASR packing accessories. Your authorized ASR Audiosystems dealer will take
care of your unit and will repair it properly.


Klaus Henkes for ASR Audiosystems 2000
6.0 Facts about the ASR Emitter
6.1 How the external ASR power supply works
(optional only for the ASR Emitter Exclusive versions)
•after switching off the ASR Emitter Exclusive the batteries are charged automatically
•immediately after switching on the ASR Emitter Exclusive, the input stage of the
amplifier is supplied with voltage from the charging transformer
•approximately one minute after switching on the ASR Emitter Exclusive, the input stage
is supplied with voltage from the external battery power supply, the charging
transformer is switched out of the signal path. The batteries´ voltage is currently
checked during operation.
•when the batteries are discharged, the charging circuit will be activated automatically.
The input stage of the ASR Emitter Exclusive is disconnected from the batteries and
will be supplied with voltage from the charging circuit. This allows continous listening to
music, even when the batteries will be charged.
•when the batteries are fully charged, the charging transformer will be switched off
automatically - the input stage of the ASR Emitter Exclusive now will be supplied with
voltage from the batteries again.
•the input stage of the ASR Emitter can be continously supplied with voltage from the
batteries for about 100 hours.
•the charging status of the batteries can be checked at the external ASR battery power
supply. Please push the black button on the (right) backside of the ASR battery power
supply. When the batteries are fully charged, the display on the frontpanel of the ASR
battery power supply shows 10 (green) segments.

ASR Audiosystems Friedrich Schaefer, D-35727 Herborn, Germany
High End Integrated Amplifier ASR Emitter Page 20
To prolong the lifetime of the batteries, please switch of the ASR Emitter HD after
approximately 80 hours of playing to fully charge the batteries. One hour of playing equals
approximately one hour of charging.
6.2 How the ASR Emitter works
The signal is passing the input and monitor relais and is routed straight to the relais step
switch to be controlled in its level. The amplifier consists of a FET-input-amplification-IC,
which controls the MOS-FET driver stage. This driver stage drives the MOS-FET output
stage.
The loudspeaker and/or headphone outputs are switched via relais. A green/yellow LED
each indicate the activation of the output relais for output A/B, a green LED indicates the
activation of the headphone output relais.
A micro-controller controlls the operation of the ASR Emitter. An EPROM (= programmable
chip) contains the control-programm of the micro-controller.
If the left knob on the frontplate of the ASR Emitter is brought to the „Off/0“-postion, a
green and yellow LED indicate, that the external power supply/supplies of the ASR Emitter
are connected to an AC outlet. If the left knob is brought to the „Standby“-position, the LED
above the right (input selector) knob are iluminated and the protection circuits are supplied
with voltage. The negative slave voltage of –10 volts is indicated by a yellow LED. In all
other postions of the left knob, the transformers in the separate power supply/supplies
is/are switched on to supply the amplifier section of the ASR Emitter – this is indicated by a
shining yellow LED in the separate power supply/supplies.
6.3 Technical Data
ASR Emitter: integrated amplifier with adjustable input sensitivity, relais step switch
volume control (75dB), remote control, six highlevel inputs switched via relais.
Input stage with FET inputs and separate voltage stabilization, output stage with high
internal feedback, completely assembled with complementary MOS-FETs, temperature-
depended regulation of bias 400/600mA (ASR Emitter I/II), amplifier operates mostly in
class a mode, DC amplification and offset-regulation is standard in every ASR Emitter.
PCB double-sided 2x 2x 120µ copper-lead-pewter, total signal routing on the pcb is
shielded, separate grounding for each channel (for signal routing and voltage supply, too),
pcb assembly with silver solder, no capacitors in the signal path, electrolytic and foil
capacitors are installed for buffering of the operational voltage.
External power supply with 2x 700 VA (ASR Emitter I)/power supplies with 4x 700 VA
(ASR Emitter II) rated power, with more than 1000 VA output (impulse) for each Philbert-
Mantelschnitt-transformer, separate transformers and rectifiers for positive and negative
voltages (two transformers each in separated enclosures per channel for the ASR Emitter
II). A built-in 72 VA transformer supplies the input stages and the controls with + 15 volts.
Five relais for each power supply are used as a choke circuit when switching on the
amplifier. The enclosures of the power supplies are made of heavy-duty metal for a better