DLS AMPLIFIER ONE User manual

Owner’s Manual
DLS AMPLIFIER ONE
Audio for Life
The information contained in this manual is subject to
change without prior notice. The most current version of
this manual is available on our official website at:
www.dls.se
Copyright c DLS Svenska AB. All rights reserved
Copyright c DLS Svenska AB. All rights reserved

Table of contents
Congratulations .………….………………
1
Unpacking ………………..……………….
1
Quick setup guide ...….…..………………
1
Introduction ………………..……………...
2
Installation and placement .....………....
2
Cleaning .…………………………………..
2
Front panel controls ..………...………….
3
Rear panels connections ……..…………
4
Settings ..………………………...………..
5
Remote control .…………………..………
6-7
Operating…………………………………..
7
Warranty…………………………………...
8
Obtaining service…………………………
8
Troubleshooting…………………………...
8
Your own notes........................................
9
Technical specifications
Output power:
2 x 100W @ 8 ohm, 2 x 180W @ 4 ohm
Minimum amplifier load:
4 ohm
Analogue inputs:
1 pair balanced (XLR), 4 pair unbalanced (RCA)
Input impedance:
50 kohm
Frequency response:
DC – 100kHz +/- 1 dB
Signal to noise ratio:
> 106 dB
Harmonic distortion (THD):
< 0,05% 20 Hz – 20 kHz
Channel separation:
> 100 dB
AC power requirements*:
120 V / 60 Hz or 240 V / 50 Hz
Power consumption@ idle:
30 W
Power consumption in Standby: 15 W
Dimensions (WxDxH):
432 x 432 x 128 mm (17 x 17 x 5,04 inches)
Weight:
16 Kg ( 35 lbs)
This product must be returned to the separate col lec tion system for electronic
products. Do not dis po se this product together with general household waste.
Marking by the ”CE” symbol indicates compliance of this device with the EMC
(Electromagnetic Compatibility) and LVD (Low Voltage Directive) standards of
the European Community
*Connect the AMPLIFIER ONE only to an AC source of the proper voltage. A label
on the rear panel will indicate the correct voltage. Use of any other voltage will
likely damage the unit and void the warranty

Congratulations!
Thank you for selecting the DLS AMPLIFIER ONE as a part of your music system.
When we designed this amplifier, we decided to enter with ”A Big Bang”. This amplifier has a high-
tech interior, but a ”no-nonsense”, user-friendly exterior.
The amplifier has been designed and assembled by highly skilled DLS craftsmen to offer state-of-
the-art high-end performance in a luxury elegant package.
We have spared no effort to ensure that it is one of the finest two-channel integrated amplifiers
available in its class. We hope you enjoy listening to the AMPLIFIER ONE as much as the pride
we have taken in creating this audio product.
Before setting up your AMPLIFIER ONE, please read this manual thoroughly
to assure yourself with its features.
Unpacking
The DLS AMPLIFIER ONE should be removed from its box with care.
The following accessories should be included inside the box together with your
AMPLIFIER ONE
:
1.
R4U remote control
2.
Two ”AAA” batteries
3.
AC power cable
4.
This owner’s manual
As soon as the amplifier is safely removed from it’s box, perform a thorough physical inspection
and report any damage to your dealer
immediately
.
immediately. immediately
We suggest that you keep all of the origi-
nal packaging material, storing it in a safe, dry place in the event that you need to transport the
amplifier.
Please write the serial number of the AMPLIFIER ONE (on rear panel) in the space provided
below for future reference:
Serial No:_______________________________________________
Date of purchase:_________________________________________
Dealers name:___________________________________________
Quick setup
- Carefully unpack your AMPLIFIER ONE.
- Connect your input source to the amplifier.
- Connect your loudspeakers to outputs connectors properly .
- Connect the AC cable to the amplifier and to an AC wall outlet.
Make sure you connect to
the proper voltage marked on your amplifier.
- Set the main switch (at the back panel on the amplifier) to ”
ON
”.
- Wait during the
Warming-up
period is ready (approx. 12-15sek.).
Warming-up period is ready (approx. 12-15sek.). Warming-up
- Push the ”
Standby
” button (on the front pa nel) to ”
ON
”.
- Choose the input source at the left side on the front panel, with the rotary source control.
NOTE: The amplifier need a ”BURN-IN” period for approx. 400 hours.
(for more information
read the ”Introduction” on page 2).
1

Introduction
A ”BURN-IN” or ”BREAK-IN” period is required before the amplifier will reach its max i mum sonic
potential.
The performance of your AMPLIFIER ONE will continue to improve during the first 400 hours of
listening. A ”Burn-in” period is required for the numerous high quality electronic parts used in this
integrated amplifier. We recommend the amplifier to be left on, or in
Standby
mode at all times,
Standby mode at all times, Standby
especially during the first 5-6 weeks of operation, in order to speed up the ”BURN-IN” pro cess.
The amplifier should not be switched off by using the main switch at the rear panel, unless it will
be out of use for a significant period of time during vacations etc.
Installation and Placement
The AMPLIFIER ONE requires reasonable ventilation to maintain an optimum and consistent
operating tem pe ra tu re. As a result, it should be placed in a location with empty space around
it for proper heat dissipation. As well, it should be placed on a solid level surface. You should
never place the amplifier too close to heat sources such as radiators, stoves, fireplaces or other
heat-producing appliances, or inside a closed cabinet. Avoid placing the amplifier where it will be
subjected to direct sunlight or extremely low temperature. Avoid placing the amplifier near elec-
tromagnetic fields, such as large power amplifiers etc. Placement of the unit near these fields can
lead to problems with hum.
NOTE:
You should never place another component directly on top of this
AMPLIFIER ONE.
Cleaning
To clean the AMPLIFIER ONE, use only a soft tissue. Never apply abrasive cleaners to the surfa-
ces of the unit.
At no time should liquid cleaners be applied directly to the AMPLIFIER ONE, as direct application
of liquids may result in damage to electronic components within the unit.
2

Front panel controls
On the front panel you have two rotary controls and one push button. These three controls let you
operate your AMPLIFIER ONE in daily use, or if you prefer, use the remote control R4U which is
included.
1. Standby
2. Source
3. Display
4. Volume
Press this push button and the amplifier will turn on.
The display will show input source and amplifier level.
Push the button once more and the amplifier will go back
into Standby mode. The display will now be dark.
For best performance, the AMPLIFIER ONE should be left on,
or in the Standby mode at all times. When in
Standby
mode all
Standby mode all Standby
audio circuitry remains powered up to maintain optimal perfor-
mance. When switching back from
Standby
to the
Standby to the Standby
on
mode,
on mode, on
Input
and
Input and Input
Volume
level settings will be memorized from the
Volume level settings will be memorized from the Volume
previous listening session.
Use the right side rotary control to set output level (from mi-
ni mum 0, to maximum 85).
Use the left rotary control to select the input source.
The AMPLIFIER ONE has five inputs: 1 pair balanced (XLR),
and 4 pair unbalanced (RCA). If you want, you can rename the
input names in the display
More about this under chapter 5, Input Settings.
3
1
4
2
3
In normal mode the display shows selected input and volume
level. In setting mode the display will show actual status of the
settings.
settings.

Rear panel connections
1. Mains Power Input and Fuse
2. Balanced Inputs
3. Unbalanced Inputs
4. Tape Out
5. Pre Out
6. Output Connectors
Plug the AC cord firmly into the AC jacket.
Make sure you
connect to the proper voltage marked on your amplifier.
Connect the male end directly to an AC wall outlet.
Avoid use of an extension cord or power split since these often
degrade sound quality
The mains power switch turns the Amplifier totally off.
In the fuse box you will also find a spare main fuse. Please
check that it is the same value before switching fuse.
Intended to be used if your main source has XLR-outputs.
If your source/sources are not equipped with XLR-outputs,
please use the line inputs with RCA-connectors.
Line: 1, 2, 3 and Tape
Each input has the same input sensitivity and impedance.
They are compatible with any typical analogue line level source:
CD, DVD, MD, Laserdisc, VCR, DA-converter, Tape deck or
phono preamplifier.
Fixed Level Output for external equipment.
If you want to use your AMPLIFIER ONE as a pre-amp, just
connect your power amplifier to the Pre Out with RCA connec-
tors.
Speaker connectors. Marked + (Red) and – (Black).
Connect to the corresponding connectors on your loudspea-
kers.
4
1
2
3
4
5
6

Settings
Use the remote control, press the
”DISP EDIT”
button and step through the following settings:
Balance – Input Level – Software Version – Edit Input Name – IR Input Front (not in use)
– Software Version – Back to Normal Display Mode (Input and Volume).
NOTE:
If you do not push any button within 3 seconds, the amplifier will leave the setting mode.
Balance
Input Level
Software Version
Edit Input Name
IR Input Front
Not in use
NOTE:
The AMPLIFIER ONE is equipped with a non-volatile memory that will remember all of the
settings you have edited, (Volume, Input selection, Alias names, etc.) that you used before placing
the unit into standby mode or switched the unit off totally by the mains switch.
Adjustment for Left and Right channel level.
Press
”Vol+”
to increase Left channel, or
”Vol-”
to decrease Right
channel.
To change the input level, select the input you wish to change, then
step through the menu by pressing
”DISP EDIT”
until
INPUT LEVEL
is shown in the display To adjust the input sen si tiv ity, simply press
”VOL+”
to increase the input sensitivity, or
”VOL-”
to decrease the
sensitivity When the desired level is set, exit the menu by pressing
the
”DISP EDIT”
button until your input name is displayed again, or
wait a few seconds. Your new level is now stored in the memory You
may store a different level for each input as they are stored indepen-
dently in the memory If you do not wish to use this feature, leave as
is, the inputs are factory preset to level ”0” (max +9, min -9).
Displays the software version.
The display uses maximum 8 character (of totally 14) to show Input
Name in the display .
Select the Input you want to change by using the
”SOURCE +/- ”
buttons. Press the
”DISP EDIT”
button to activate the menu and
step until
EDIT INP NAME
is shown in the display Press
EDIT INP NAME is shown in the display Press EDIT INP NAME
”VOL +”
and you will see the first character of your previously selected input
name flash. Use
”VOL +/ -”
to change the character. Go to the next
character by using the
”SOURCE+/-”
button. Then use the
”VOL
+/-”
to change the character, etc.
To exit the menu, press
”DISP EDIT”
until the new name is dis-
play ed or wait a few seconds.
5

Features
Use the remote control to enter the following Features:
Surround Mode
and
Tape Loop
Surround Mode
Tape Loop
To bypass the preamplifier section of the AMPLIFIER ONE,
press the
”SURR”
button on your remote control for 1 second.
SURR
will be displayed next to your currently selected input.
SURR will be displayed next to your currently selected input. SURR
NOTE:
In this mode Line 4 (TAPE) will be directly connected to
the power amplifier bypassing the internal preamplifier circuits.
WARNING:
Do not press Surround Mode if you don’t use an
external Surround preamplifier.
If you want to use any external Line Level equipment (such
as Surround processor, Digital Room correction unit or similar
equipment) connect as follow: TAPE OUT to external equipment
Input, and Output from the equipment to TAPE IN at the AMP-
LIFIER ONE. By pressing
”Tape Loop”
on the remote control,
you now loop the signal through the external equipment.
Remote control R4U
The same remote is used for both AMPLIFIER ONE and CD ONE.
The functions used to control the amplifier are
bold
in the text below.
1.
AMP
Changes the AMPLIFIER ONE between ON and Standby mode
2.
CD
Changes the CD ONE between ON and Standby mode
3.
DIM AMP
Dims the display at AMPLIFIER ONE in three steps and off
4.
DIM CD
Dims the display at the CD front panel in three steps
5.
TAPE LOOP
Loop signal to external equipment
6.
RANDOM
Random play for Compact disc
7.
SURR
Press the button for 1 second to entry ”SURROUND” mode
8.
TIME
Displays track and elapsed time of track or CD
9.
DISP EDIT
Editing display on amplifier
10.
MUTE AMP
Mute control button for the amplifier, mutes to "0" Output level
Mute control button for the amplifier, mutes to "0" Output level
Mute control button for the amplifier, mutes to "0" Output level
11.
SOURCE
Use - or + to change the input source
12.
VOL
Output level + / -
13.
Stop playing disc
14.
Play disc
15.
Open / Close CD drawer
16.
Pauses playing disc
17.
Restart current track, or step to previous track
18.
Step to next track
19.
Reverse Scan
20.
Forward Scan
21.
REPEAT
Repeat track (press once), Repeat Disc (press twice)
To cancel press until Repeat Off shows in Display
22.
CD/SACD
In Stop-mode: Changes between SACD-STEREO
6
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t

Operating
We recommend that you leave your AMPLIFIER ONE powered up at all times to maintain optimal
performance. If you plan to be away from your home for a few days, powering off the amplifier may
not be a bad idea. Don’t forget, if you do so, it will require several hours before it reaches its peak
performance after you’ve powered up again!
Turning on your AMPLIFIER ONE for the first time
When you turn the amplifier on for the first time, make sure that every cable is properly connected
to avoid any problems. Then turn on your amplifier in the following manner:
1.
Turn on the main switch labelled
POWER
to the position
”ON”
at the rear side.
Make sure you connect to the proper voltage marked on your amplifier.
You will now see
WARMING UP
in the display window, wait a few seconds until
WARMING UP in the display window, wait a few seconds until WARMING UP
the message disappear.
2.
Press the
”STANDBY”
button on the front side, the display window will
now display the
Source
and
Source and Source
Volume level
.
3.
Select input line.
4.
Adjust the Volume to a reasonable listening level.
7
3
1
7
9
5
The R4U remote control
Functions used to control AMPLIFIER ONE are shown below, all the other buttons are only used
to control CD ONE
12
10
11

Warranty
Contact your authorized DLS Dealer for details of our local warranty policy
Obtaining service
If your DLS AMPLIFIER ONE must be serviced, please contact your local dealer.
You can also consult the DLS web-site www.dls.se and contact the exclusive
Hi-Fi distributor for your country
Important!
It is extremely important that the in for ma tion about a problem is explicit and complete. A specific,
comprehensive description of the problem helps your dealer and the technical service department
to locate and repair the fault as quickly as possible. A copy of the original bill or sales receipt will
serve to verify the warranty status. Please include it with the unit when it is brought in for warranty
service.
Warning!
All returned units must be properly packaged in their original packaging material. If the packa-
ging to protect the unit is, in our opinion or that of our dealer, inadequate, we reserve the right
to repackage the return shipment at the owners’ expense. Neither DLS nor your dealer can be
responsible for shipping damage due to improper (that is, non-original) packaging. Your dealer
can order a new set of shipping materials for you if you need to ship your AMPLIFIER ONE and no
longer have the original materials. There will be a charge for this service. We strongly recommend
saving all packaging materials in case you need to ship your unit some day
8
Troubleshooting
Problem: Cause: Solution:
No sound
No sound
Power AC Mains cable
unplugged or power not
switched on
Tape Loop is selected
Mute on
Internal fuse blown
Input cable disconnected
External Electrical Shock
No sound in
No sound in
Speaker not properly
one of the channels connected or speaker
one of the channels connected or speaker
damaged
Input lead disconnected
or damaged
Weak bass/poor stereo image
Weak bass/poor stereo image
Speakers wired
Check connections to
out of phase
speakers in the system
Remote control not working
Remote control not working
Batteries need to be replaced
or are incorrectly installed
IR transmitter or receiver
windows obstructed
Check if AC Mains cable
is plugged in and power
switched on
De-select Tape Loop mode
De-select Tape Loop mode
De-select Tape Loop mode
Switch off Mute
Consult dealer
Connect Input cable
Switch Off Main Power for
minimum 5 seconds
Check connectors and
speakers
Check leads and
connections
Replace or check
the batteries
Remove obstruction

Your own notes
Make you own notes regarding settings, installation etc.
9

Contact:
DLS Svenska AB
P.O Box 13029
SE-402 51 Göteborg
SWEDEN
Phone: [phone]
Fax: [phone]
e-mail: [email protected]
www.dls.se