SAE 3000 User manual

SAE
3ooo
Scientific Audio Electreniu, Inc. 6JdM

You are now the proud owner of one of the finest pre-
amplifiers available
. Your 3000 is the result of many years
of painstaking research and development by SAE's
engineering and design team
. The high caliber of our
design staff and the dedication to precise engineering and
production standardshave made SAE products known around
the world. as truly "state-of-the-art" components
.
In order to achieve maximum performance from
your
3000. please read this manual thoroughly before
operation
. If you have any questions concerning its use
or maintenance. please contact your dealer or the
SAE Customer Service Department. P.O. Box 60271.
Terminal Annex. Los Angeles 90060
.
PRODUCT RECORD
Model 3000 Stereo Preamplifier Equalizer
SerialNo .
Purchased From:
Name
Address
DatePurchased
SalesInvoiceNo
.
Salesman
DateServiceContractCard Mailed
Servlcr Contract No
.
Expiration Date
TABLE OF COnTEnTS
............................... UNPACKING 3
................................ INSTALLATION 3
CONNECTIONS
............................. 3
REAR PANEL CONNECTIONS .......... ... 3
Phono 1 and Phono 2 ..................... 3
...
Gnd ............. ... 3
Tuner ......... ......... 3
Aux
....................................... 5
Tape 1 andTape2 ............................. 5
..................... Main Out 1 and Main Out 2
5
AC Power Connections ......................... 5
.......................
AC Outlets ... 5
.....
OPERATION OF CONTROLS ... 5
Selector . ... 5
Mode ............ ... 5
Volume and Output ................... 5
Balance ...................................... 5
Tape ......................................... 5
Tone Controls ..................... ... 5
Filters
... 9
..............
Headphone ............. .. 9
...... GENERAL MAINTENANCE . 9
...........................
SERVICE .. 9
SERVICE COVERAGE ..................... .. 9
...... ...................
SPECIFICATIONS .... 11
FIGURE 1 .
FIGURE 2 .
FIGURE 3 .
Typical Hookup .....
... Tape/EQ Flow Charts
Trouble Shooting Guide
..

Before leaving the factory, your unit was carefully
inspected for physical imperfections as a routine part of
our systematic quality control to ensure a flawless
appearance.
After the pre-amplifier has been unpacked, inspect it
for physical damage.
Save the shipping carton and all packaging materials,
as they were carefully designed to reduce to a minimum
the possibility of transportation damage.
In the unlikely event that damage has occurred,
immediately notify your dealer and request the name of
the carrier so that a written claim to cover the damages
can be initiated.
THE RIGHT
TO ANY CLAIM AGAINST A PUBLIC
CARRIERCANBE FORFEITEDIFTHECARRIERISNOT
NOTIFIED PROMPTLY, AND IF THE SHIPPING
CARTON AND PACKING MATERIALS ARE NOT
AVAILABLE FOR INSPECTION BY
THE CARRIER.
SAVE ALL PACKING MATERIALS UNTIL THE CLAIM
HAS BEEN SETTLED.
Adequate ventilation will extend the trouble free life
of your pre-amplifier.
The3000may be mounted either horizontally orvertically.
However,
it should not be totally enclosed with other heat
producing components.
The cut-out for custom panel mounting is 5 in. high
by 17.5 in. wide. Allow enough space around the opening
to clear adjacent panel-mounted components. The outside
dimensions of the front panel are 5.25 in. by
19 in. If your
cabinet has doors or a lid, the mounting panel should be a
minimum of .75 in. behind the doors or lid when closed
to clear knobs and switches. The mounting holes on the
3000 Pre-Amplifier
bottom are tapped for a #6-32 screw size and the screws
used for mounting must not project more than
.25 in.
into the unit.
The 3000 is designed so that it may be used in
a 19 in.
rack mount installation. In this application it may be mounted
by the front panel only. However, if extended shipping
is planned, standard precautions should be practiced
such as side ramps, tracks, or supports to protect the unit
during rough handling.
If you intend to use the 3000 in a stand alone application,
the C-4 or C-5 cabinet is available as an accessory. This
handsome cabinet features solid walnut sides which
complement the 3000 beautifully.
All rear panel input and output signal connections should
be made with high-quality co-axial audio cables (RCA phono
type). On the 3000, left channel inputs and outputs are
labeled "CH
A". Right channel inputs and outputs are
labeled
"CH B".
Whenever rear panel connections are being made,
the 3000 and the associated components should all
be switched off.
REAR PAnEL COflnECTIOnS
PHONO 1 & PHONO 2 - These inputs are for connecting
the outputs from a turntable or changer.
Connect the cable from Channel A of the turntable
into the PHONO
1 CH A input jack. Connect the cable
from Channel B of the turntable into the PHONO
1 CH B
input jack. A second turntable is connected to PHONO
2
in the same manner. Phono 1 and Phono 2 inputs are
terminated with an input resistance of 47,000 ohms
and an input capacitance of
100 picofarads (approx.).
GND
- Under certain conditions it may be necessary
to provide a common "ground" between the 3000 and your
associated equipment. This may be accomplished by using
the special GNDterminal located on the rear panel.
TUNER
- Connect the cable from the left output of

TURNTABLE 2
WON0 TUNER AUX
2 1 I
AC OUTLETS
y SWITCHED 7 r UNSWITCHED 1
MAIN OUT
12
TAPE 1 TAPE 2
IN OUT IN OUT
Scientific Audio Electronics, Inc.
LOS ANCELES CALIFORNIA.U S.A.
3000 STEREO PREAMPLIFIER
400 WATTS 400 WATTS
I400 V A ) IIDDVA)
CAUTION. FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD. REPLACE
ONLY WITH SAME TYPE AND
RATING FUSE; KAMP
TURNTABLE 1
TAPE 1
AMP 1
AMP 2
TUNER TAPE
2

your tuner to the TUNER CH A input on the 3000.
Connect the cable from the right output of the tuner
to the
TUNER CH B input.
AUX - This high-level input is provided for items
such as second tuner, ceramic phono cartridge or a
playback tape deck.
TAPE 1 & TAPE 2 - Two full tape circuits are provided
on the 3000. To connect a tape deck or other component
to the
TAPE 1 circuit, use the following procedure.
The left (A) and right (B) outputs of the tape deck or other
component are connected by audio cables to the jacks
on the back of the 3000 marked
TAPE 1 IN CH A and
TAPE 1 INCH B. The inputs of the tape recorder
are connected to the jacks on the 3000 marked
TAPE 1
OUT CH A and TAPE 1 OUTCH B.
The same procedure is used for the connection of a
tape deck or other component to the
TAPE 2 circuit.
Other components normally connected in these circuits
are equalizers, noise reduction systems and decoders.
The control flexibility offered by these two circuits
is discussed in the
OPERATION section of this manual.
MAIN OUT 1 and MAIN OUT 2
The 3000 was designed specifically for operation with
SAE Basic Power Amplifiers. However, it is eminently
suited to drive any other stereo power amplifier, or a pair
of monophonic power amplifiers. If two monophonic
amplifiers are used for stereo, it is strongly suggested
that they be a matched pair.
MAIN 1 and MAIN 2 outputs
are connected directly to the amplifier inputs. Connect the
MAIN OUT 1 CH A to the left input on the stereo power
amplifier. Connect the
MAIN OUT 1 CH B to the right
input on the stereo amplifier. An additional stereo power
amplifier may be hooked up in the same manner to the
MAIN 2 outputs.
With the power switch in the OFF position, plug the
linecord into any outlet furnishing 105-125volts, 50 to60Hz.
AC OUTLETS - Four AC convenience receptacles are
provided on the rear panel. These receptacles are designed
to power your associated equipment. Two outlets are
SWITCHED, and power is supplied to these when
the 3000 is switched on, the other two are
UNSWITCHED,
and power is always available at these outlets as long as
the 3000 is plugged in. These unswitched outlets are
usually for turntables and changers.The 3000 AC receptacles
are two prong and are designed for 2 prong plugs only.
Connecting amplifiers with 3 prong plugs by either removing
the ground prong, or using a 3 to 2 adapter is not
recommended and may be hazardous.
OPERATlOfl OF COnTROLS
SELECTOR - These buttons select any desired input
(phono, tuner or aux) except for tape 1 and tape
2.
The phono l/phono 2 button is used in conjunction with
the phono selector button to choose phono
1 (out) or
phono 2 (in), this phono l/phono 2 button is ineffective
without the phono selector button being depressed.
MODE - This selector functions in the following way:
stereo
- With all mode buttons out, the CH A (left) input
is connected to the CH A (left) output and the CH
B (right)
input is connected to the CH
B (right) output.
A - When the A button is in, the CH A input is
connected to the CH A and CH B outputs.
B - When the B button is in, the CH B input is
connected to the CH A and CH B outputs.
A - mono - B - When both A and B buttons are in,
the CH A and CH B signals are combined (A
+ B).
This combined signal is then fed to CH A and CH Boutputs.
reverse
- With the A and B buttons out and the reverse in,
the CH
A input is fed to the CH B output and CH B input
is fed to the CH A output.
VOLUME and OUTPUT - The VOLUME control adjusts
the volume level in both channels simultaneously.
The
OUTPUT switch will effectively extend the range of
the volume control by 12 dB. When this switch is depressed,
the overall level of the preamp is reduced by 12 dB.
This
OUTPUT switch is useful when using high
efficiency speakers and at low listening levels to allow
the volume control to be used over a broader range.
The button is also useful in reducing level during phone
calls and conversations without readjusting the
VOLUME
control.
BALANCE - The BALANCE control adjusts for
unequal volume level in either channel.
Moving the control to the left will diminish the volume
of CH
B (right).Moving the control to the right willdiminish
the volume of CH A (left).
monitor
- The output of TAPE 1 or TAPE 2 can be
monitored by using the source/monitor and tape l/tape 2
buttons. To monitor, depress the source/monitor button
and then select tape
1 (out) or tape 2 (in).
copy
- For recording from one tape machine onto
another (copy), use the
€allowing procedure. Depress
the copy/source button. Then with the 2-1/1-2 button
in the out (1-2) position, the output of Tape
1 is fed to
the input of Tape 2 and the source (determined by
the selector switch) is fed to Tape
I. When the 2-1/1-2
button is in (2-I),the output of Tape 2 is fed to the input
of Tape
1 and the selected source is fed to Tape 2. With
the 3000 it is possible to simultaneously listen to a
selected input and also copy tape to tape.
TOnE COnTROLS
Tone - The tone controls used in the 3000 are activated
by depressing the iddefeat switch. This control system
can be used after any input (line) including tape or
before the tape outputs (tape) to make modified
tape recordings.
Following is a discussion of the tone control system.
TREBLE - Independent, high frequency tone controls
are provided for each channel on the 3000. This control
takes effect at approximately lkHz and provides l6dB
of boost or cut at 20kHz. The treble control can be effective
in increasing the brilliance of percussion instruments or
in the cut mode, to reduce hiss occurring on some older
tape recordings or records.
MID - The independent MID controls provided on
the 3000 provide greater than 7dB of boost at 1kHz.
This control is useful for reinforcing vocalists or other
mid-range instruments.
By using the cut feature of this control, you can reduce

I
3000 TAPE, TONEIFILTER, COPY INTERCONNECT
- -
KEY
-This block represents the
[7] -This block represents the
SELECTOR switch. Any equalizer and filter circuits of
source selected bythis switch the
3000. Whatever signal
(phono, tuner, aux.) will follow flows through the Tone circuit
the path indicatedby the will also be affected by the
signal flowchart. filters when they are activated.
[-I -This block represents the
tape deck or other device
connected to the TAPE
1 jacks
on the rear panel.
1-1 -This block represents the
ta~edeck or other device
connected to the TAPE
2 jacks
on the rear (or front) panel.
-This block represents the
volume, balance and mode
controls plus the signal
appearing at the MAIN OUT
1-1 OUT IN
I FLOWCHART I REMARKS 1 SWITCH POSITION
I MONITOR
SELECTOR to TAPE OUT 1 & 2
(SELECTOR at output)
r- TAPE .-I
1
FILTER.- EQ 7
SELECTOR to TAPE OUT 1 & 2
(TAPE 1 at Output)
----
- - - -
SELECTOR to TAPE OUT 1 & 2
(TAPE 2 atoutput)
I COPY and MONITOR
SELECTOR to TAPE 1 to TAPE 2
(SELECTOR at Output)
SELECTOR to TAPE
1 to TAPE 2
(TAPE 1 at output)

I 3000 TAPE, TONEFILTER, COPY
I
NTERCONNECT
SELECTOR to TAPE 1 to TAPE 2
(TAPE 2 atoutput)
SELECTOR to TAPE
2 to TAPE 1
(SELECTOR at output) I
SELECTOR to TAPE 2 to TAPE 1
(TAPE 2 at output)
COPY, EQ (TONE), FILTER and MONITOR
L
I
line EQ
(equalized SELECTOR at Outpl
-
line EQ
(equalized TAPE
1 at output)
line EQ
(equalized TAPE
2 at output)
SELECTOR to EQ to TAPE
1 & 2
(SELECTOR at output)

I
I 3000 TAPE, TONE COPY NNECT
L
FLOWCHART REMARKS
SELECTOR to TONE to TAPE 1 & 2
[SELECTOR at output]
SELECTOR to TONE to Tape
1 & 2
[TAPE 1 at output]
TAPE
1 to TONE to TAPE 2
[SELECTOR at output)
TAPE
1 to TONE to TAPE 2
[TAPE 1 at output)
TAPE
1 to TONE to TAPE 2
[TAPE 2 at output]
TAPE 2 to TONE to TAPE 1
[SELECTOR at output]
TAPE
2 to TONE to TAPE 1
[TAPE I at output]
TAPE
2 to TONE to TAPE 1
[TAPE 2 at output]
SWITCH POSITION

the presence of an overbearing vocalist in an otherwise
excellent recording.
BASS
- TheBASS controls provided on the 3000 takeeffect
at approximately 500Hz and provide l6dB of boost or cut
at 20Hz.
These controls are useful for reinforcing the limited
bass production of some speaker systems or speaker/room
combinations. It can be used in conjunction with the filter
circuits to minimize bass resonances that may occur in some
playback combinations.
FILTERS
- The 3000 provides two low frequency filters
which arepart of theEQgroupand areactivatedby depressing
the
EQ in/defeat switch. The 30Hz filter is designed to
remove subsonic components (i.e.,: rumble, record warp),
which could reduce the sonic clarity of the music and even
damage speakers. This filter is also effective when making
tape recordings from records, since these subsonic
components can cause tape saturation and ruin otherwise
excellent recordings. The lOOHz filter is designed to reduce
the pronounced bass encountered in certain recordings and
room/speaker combinations.
he-included diagram showsthe possible combinations
of the TAPE
1, TAPE 2. and Tone circuits in the 3000.
Remember tha; the filteks are part of the tone circuits.
This interconnect flowchart has been provided
to assist you in using the 3000's tape monitor, copy,
and tone/filter systems. These flowcharts indicate
what signals are present and where in the 3000, and at
the TAPE OUT
1. TAPE OUT 1 and MAIN OUT.
Determine which flowchart and remarks fit your particular
situation and then use the SWITCH POSITION chart
for the proper tape monitor, tone/filter and
copy configuration.
HEADPHONE
- This phone jack is designed to drive
any medium to high impedance head phones. When a
headphone plug is inserted into headphone, MAIN 1
and MAIN
2 outputs are muted. BE SURE to lower the
volume control to a safe level before removing this
headphone plug.
Power on
- The power switch supplies power to the 3000
and the two SWITCHEDconvenience outlets. The LED
(Light Emitting Diode) must come on when the switch
is depressed. If it does not, power is not being supplied
to the 3000.
IMPORTANT
- The 3000 incorporates a relay muting
circuit to offer you quiet turn-on and turn-off. As part
of this feature, there is a
1-3 second delay in audio
after turn-on.
Great care has been taken by the staff of SAE to assure
that your pre-amplifier is as flawless in appearance as it is
electronically. The panel is finished with a high-grade black
anodizing process (MIL Specification 8625-A-Type 2) for
durability as well as beauty.If it should become fingerprinted,
it can best be cleaned by using a soft cloth dampened with a
solution of LIQUID detergent and water. UNDER NO
CIRCUMSTANCES SHOULD A LYE SOLUTION OR AN
ABRASIVE CLEANER SUCH AS SCOURING POWDER
BE USED ON ANY PART OF THE PRE-AMPLIFIER.
FUSE
The pre-amplifier is protected by a line fuse on the
rear panel. When power is applied to the pre-amplifier and
the LED does not illuminate, check the line fuse. If the fuse
is faulty, replace it ONLY with a fuse of equal value.
Replacement with a fuse of a higher current rating
will not protect the pre-amplifier and will void the
Service Contract.
If after replacing the fuse, it blows immediately,
an electronic component failure might be suspected.
No further attempts to replace the fuse should be made.
SERVICE
SAE has a Customer Service Department to answer
all questions pertinent to the installation and operation
of your unit. Please feel free to write us at any time
and we shall endeavor to offer prompt and complete
advice regarding your installation. If a problem arises
which cannot be resolved through our combined efforts,
we may wish to refer you to a local authorized repair
agency or factory, To aid us in selecting a service station
convenient to you, it would be helpful if you would indicate
which major city is closest to your home.
Please address inquiry to: Customer Service Department
SAE, Inc.
P.O. BOX 60271, TERMINAL ANNEX
LOS ANGELES, CALIFORNIA 90060
Be sure to include the model number and the
serial number of your unit.
In the event ybur unit must be returned, anauthorization
MUST BE REQUESTED from SAE prior to its return.
UNDER NO CIRCUMSTANCES SHOULD YOUR
UNIT BE SHIPPED TO THE FACTORY WITHOUT
PRIOR AUTHORIZATION.
If the original shipping carton has been lost or discarded,
or
if the carton is not in good condition, a duplicate carton
may be obtained from our Service Department for
a minimal charge.
Always ship via recognized freight carriers.
Suggested carriers will be given in SAE's Customer
Service Departm'ent reply. Do not ship via Parcel Post.
ALL PARCEL POST SHIPMENTS WILL BE REFUSED.
SERVICE COVERAGE u.s. (ONLY)
SAE is proud to offer you an unprecedented free
Five-Year Service Contract on your component. In order
to receive this valuable protection, the enclosed Service
Contract Registration Card must be completed and mailed
to SAE within one hundred-twenty (120) days of purchase.
If you do not receive your Service Contract Label within
thirty (30) days after the Registration Card has been mailed,
please contact SAE immediately.
While waiting for the service Contact Label, your sales
receipt will serve as proof of purchase and must be presented
to the ServiceStation in the eventservicing is required within
one hundred-twenty (120) days of purchase.
INTERNATIONAL
As stated above, the SAE
5 year service contract is valid
onlv in the United States. service in other countries will be
provided by the exclusive SAE representative or his agents.
Because of varying governmental regulations and conditions,
the service period may differ from country to country.
However, in every instance, the service agreement can only
be honored in the country where the unit was purchased.
In the event that there is no SAE representative in your
country please contact SAE, or in CANADA:
The Pringle Group, 30 Scarsdale Road
Don Mills, Ontario,Canada, M3B2R7

TROUBLE SHOOTlnG GUIDE
SYMPTOM
I.
Unit will not turn on
3 Unit turns onbut nosound is heard.
3.
One or both channels inoperative.
4. Unit hums
5. RF Interference.
Radio: radio program heard
TV: rasping buzz.
6. Tape recorders will not record
phono, tuner or Aux.
PROBABLE CAUSE
A. Not plugged into AC outlet.
B. Blown Fuse.
A. Switches in wrong position.
R. Cables not connected properly.
C. Tape Monitor switch In Monitor
position not allowing normal oper-
ation of phono, tuner or aux.
A. Bad cables.
A. Unit too close to power transform-
er
of amplifier.
R.
Lack of shielding between units.
C. Phono Cartridge
A. Poor cable shielding.
A Tape copy swirch in wrong posi-
tion
POSSIBLE REMEDY
A Connect AC line cord to outlet
or try different outlet.
B. Refer to General Maintenance
section and replace fuse.
A Check positions.
B. Check cable connections.
C. Move swirch to "Out" position.
A.
Try other cables (or interchange).
A. Isolate the input function associ-
ated with the problem. If phono,
reorient the preamp in relation
to the power amplifier.
B. Insert MU metal shield between
unics
if reorientation is impossible.
C. Check cartridge ground connec-
tions, then move tone arm while
operating to see if hum level varies.
If so, reorient turntable
A. Shortencables or obtain cable
with better shielding.
A.
Refer to section on Tape Copy
Switch.