Roksan Audio K3 User manual

Page 1
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [e-mail] | [phone]
ROK-1217 V2.3
April 2018
F

Page 2
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
MANUAL
This manual is divided into the following sections:
• Safety Instructions (accompanying card)
• Introduction
• Cautions
• Installation
• Setup
• Operation
• Troubleshooting
• Guarantee
• Specifications
• Notes

Page 3
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Congratulations on your purchase of the ROKSAN K3 Integrated Amplifier.
This Integrated Amplifier is designed and manufactured to the highest
specification and rigorously tested to reward you with many years of
listening pleasure. Your K3 Integrated Amplifier is an integral part of your
system. Its correct installation, set-up and operation will have a significant
influence on the performance of the entire hi-fi installation. Please read the
contents of this manual thoroughly. It will help you to understand your hi-fi
equipment better and further enhance your listening pleasure.
Unpacking
Included in the packing of your K3 Integrated Amplifier you will find:
• One mains lead fitted with the correct mains power plug for your
country.
• One Roksan R7 remote control
After removing these items please retain all packing material. Correct
packing is necessary for future transportation of your K3 Integrated
Amplifier.
Maintenance
After disconnecting the K3 Integrated Amplifier from the mains supply, the
cabinet and front panel may be cleaned with a dry lint-free cloth. Avoid
using abrasive substances or solvents.
EU Directives
Hereby, Roksan Audio Ltd declares that the equipment type ‘K3 Integrated
Amplifier' is in compliance with Directive 2014/53/EU. The full text of the EU
declaration of conformity is available at the following internet address:
www.roksan.co.uk

Page 4
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Cautions
AC Mains Supply
Your K3 Integrated Amplifier is set to operate from a fixed supply voltage
which is marked on a label next to the mains input plug. Before connecting
the mains lead please check that your mains supply corresponds to the
label as below:
230V Products: Voltage Range 220V –!240V
115V Products: Voltage Range: 110V –!120V
100V Products: Voltage Range: 90V –!110V
The mains lead supplied with this product has an IEC mains socket which
plugs into the IEC connector on the unit’s rear panel. The other end is
normally attached to the appropriate mains plug for your country.
If the plug becomes damaged or is not suitable for your socket outlet, it
should be cut off and an appropriate plug fitted in its place by a qualified
service personnel. The replacement plug should have the same fuse rating
as the original plug. The severed plug must be disposed of to avoid a
possible shock hazard and should never be inserted into a mains socket
elsewhere.
Should you move to another area where either the mains voltage or the
mains plug are different from those as supplied with your Integrated
Amplifier, please contact the appointed ROKSAN distributor for assistance.
Please observe correct mains polarity at all times.
The Integrated Amplifier mains fuse is located on the rear panel next to the
IEC mains connector. This must only be replaced by the fuse of the type and
rating as described on the fuse rating label on the rear panel of the unit.
This product requires connection to earth (ground). The earth wire (in the
UK this is colour coded green/yellow) of the mains cable supplied with your
Integrated Amplifier must be connected to a suitable earthing point
established for this purpose by your electricity supply company. If you are in
any doubt, consult a qualified electrician.
If the equipment is likely to be unattended for some time, unplug it from the
mains supply.

Page 5
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
General Cautions
Please read the safety instructions and follow all guidance.
Location
Your K3 Integrated Amplifier should be located in a well ventilated area and
kept away from sources of heat, dust and humidity and from direct sunlight.
The integrated Amplifier may be positioned either as a free standing unit or
along side another audio/video product. Never allow liquids or other
objects to fall into the unit.
This unit contains no user serviceable parts. DO NOT remove any panels or
attempt to service it yourself. Unauthorised servicing will void the warranty.
Surface Heat
The top surface of the unit will get hot in operation. Do not
leave items on the top surface and avoid contact with the
top of the unit. A warning label is affixed to the top surface.

Page 6
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Installation
K3 Integrated Amplifier- Front Panel View
1. Mode Button
2. Input Button (back)
3. Input Button (forward)
4. Mode Indicator
5. CD Input Indicator
6. Tuner/Aux. Line 3 Input Indicator
7. AV Input Indicator
8. Aux Line 1 Input Indicator
9. Aux Line 2 Input Indicator
10. Phono Input Indicator
11. Bluetooth Indicator
12. Bluetooth Button
13. Headphone Socket (3.5mm)
14. Volume Control
15. AC Mains Power Switch under unit
To switch the unit on, operate
the AC mains switch located
under the front left of the
amplifier (15). The position to
the left marked ‘1’ is ON,
position to the right marked ‘0’
switches the unit OFF.
Switch in OFF
position
Switch in ON
position

Page 7
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
K3 Integrated Amplifier- Rear Panel View
17. Pre amp Output 1 (Multi-Amping or Subwoofer)
18. Bypass Input (When Bypass switch 31 is set to BYPASS)
19. Phono Input (Moving Magnet)
20. Tuner / Aux line 3 Input
21. Aux line 2 Input
22. AV Input
23. Aux line 1 Input
24. CD Input
25. Right Speaker Output
26. Left Speaker Output
27. AC mains Input
28. AC Mains Fuse Holder
29. Voltage & Fuse Label
30. Phono Input / Chassis Grounding Terminal
31. Bypass Switch (selects between AV & Bypass Inputs)
32. Bluetooth aptX Antenna

Page 8
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Set-Up
Connecting mains Power
Please refer to the front & rear panel view on Pages 6 & 7. The moulded IEC
connector of the supplied mains lead should be plugged into socket (27)
on the rear of the unit first and then plugged into the mains supply.
The mains power switch (15) is on the front under side of the Integrated
Amplifier. This switch can be left on; if however the amplifier is likely to be
unattended for a long period of time, switch it off and unplug the mains
lead from the wall.
Signal Connections
There are 6 Inputs (18 -24) on your K3 Integrated Amplifier. Except for
PHONO input (19) all other inputs are line level and will accept virtually all
currently available source components. The PHONO input is factory set for
Moving Magnet Cartridges to accommodate record players fitted with MM
phono cartridges. The AV input (22) is linked to the BYPASS input (18) and
switch to set BYPASS, then the AV input will be deactivated and the BYPASS
input will become activated. In this mode, the BYPASS input can be used to
a surround sound processor’s front L & R pre output for home theatre use.
The BYPASS input is directly connected to the power amp section and
bypasses the preamp. The volume is then controlled via the surround
sound processor and not the K3 Integrated. You could also use the
integrated as a power amp in this mode.
All the inputs use gold plated RCA phono connectors and should be
connected according to the standard convention.
- Right Channel - Red
- Left Channel - Black or White
Also in accordance with standard practice, the upper row of phono Sockets
carries the Left Channel and the lower row carries the Right Channel.

Page 9
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
The input sockets are labelled with their legends upside down as well as the
normal way up to assist you should you be connecting an input from a
position in front of and above the amplifier.
MC Input Connection
If you wish to use a Moving Coil Cartridge, an in-line MC step-up
transformer should be connected to the Phono Input. Alternatively a
dedicated Phono Stage can be connected to a line level input.
(NOTE: if you wish to connect to the Phono input, it must be set for line
level signal. See above). For advice and demonstration of ROKSAN state of
the art turntable reproduction systems contact your authorised retailer.
Loudspeaker Connections
The right and left loudspeakers are connected to the amplifier via the rear
panel binding posts (25) and (26) respectively. There are two basic types of
cable:
• Figure 8 cable has two insulated conductors which lie parallel, either side
by side, or spaced by insulation.
• Overall sheathed cable has both conductors insulated and enclosed in an
overall plastic sheath.
Carefully remove any over all sheath or split the figure 8 cable to a depth of
about 75mm (3”). Carefully strip the insulation on each wire to a depth of
about 12 mm (1/2”) exposing the bare core. If the conductor is stranded,
twist the strands together on each conductor.
Unscrew the binding post. There is a cross-hole about 5 mm from the panel
end of the binding post. Insert the bared conductor through the hole and
tighten the binding post securely making sure that there are no loose
strands or bare ends protruding through the post. Carefully observe
polarity ensuring that the RED (+) speaker terminal is connected to the RED
(+) amplifier terminal and the BLACK (-) speaker terminal to the BLACK (-)

Page 10
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
amplifier terminal. When both left and right channels are connected to the
respective speakers the amplifier is ready for use.
IMPORTANT NOTE: For optimum performance it is recommended to use
high quality inter-connect cable such as ROKSAN HDC-03A High Definition
Analogue Cable.
IMPORTANT NOTE: For optimum performance it is recommended to use
high quality cable such as ROKSAN HDC 03S High Definition Loudspeaker
Cable. Many speaker cables such as the ROKSAN HDC-03S are directional.
Please observe this characteristic. DO NOT use a speaker cable with
conductor size less than 16 AWG (1.6mm Diameter). The binding posts
accept conductor sizes up to 12 AWG.
Multi-amping Loudspeakers
If the system loudspeakers utilise more than one drive unit with individual
input terminals, for example a Tweeter and Woofer, then the loudspeakers
performance should benefit from bi-amping by use of the addition of a K3
Power Amplifier. Dedicating one amplifier to the Tweeter and another to
the Woofer isolates them from each other, hence reducing distortion and
increasing reserved power. Speakers work significantly better with most
amplifiers when multi-amped than using one, more powerful, amplifier.
For setup and connection details on multi-amping refer to the K3 Power
Amplifier Manual.
Multi-wiring Loudspeakers
NOTE: Multi-Wiring connects the Woofer and the Tweeter terminals directly
to the output terminals of the amplifier and is the first step towards Multi-
Amping.

Page 11
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Operation
Please refer to the front and rear panel views
Switching On
The mains power switch (15) is located on the front under side of the
amplifier. This switch can be left ON for normal operation. If unattended for
a long period of time (going on a short break, holidays etc.) the mains
power should be switched OFF and the power cord disconnected from the
mains power input. When switched ON, your K3 integrated amplifier’s
MODE indicator illumination will change to RED and the last selected input
will be selected. The amplifier will then automatically check its input/ output
status and after a brief moment when no problems are detected, the
speaker output relays will click on and the amplifier starts in normal
operation mode responding to all front panel buttons and the remote.
Using the Controls
Mode Control
Pressing the MODE button once with the amplifier activated will mute/lower
the volume level by 20dB. The MODE indicator light will change to AMBER.
The amplifier remains fully functional in this mode. Pressing MODE again
un-mutes the amplifier and the MODE indicator light will change to RED.

Page 12
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Volume Control
The VOLUME control is a precision device. It follows algorithmic law so that
its response approximates that of the human ear. There is an indicator on
the volume control to show the appropriate volume setting.
Input Selector Button
The INPUT Selector Buttons (2) and (3) shift through the inputs one click at a
time. They connect each signal source to the amplifier by shifting through
the Inputs. Pressing the Forward Button (3) repeatedly will select inputs in
this sequence: CD - AUX1 - AV - AUX2 - AUX3 - PHONO
Pressing the Backward Button (2) repeatedly reverses the sequence.
Whenever an input is selected the appropriate indicator light will illuminate.
NB: To select the Bluetooth input, press the Bluetooth on/off button (12).
The Bluetooth on light will flash when selected.
Bluetooth Connection and Pairing
Make sure your device’s Bluetooth is enabled and press the Bluetooth
on/off button (12) located on the front panel of the amplifier, or the BT
button on the remote. This will select the Bluetooth source and when your
device has found the amplifier, ‘ROKSAN K3’!will appear on your device.
Next, connect to pair your device. When paired or connected the blue light
will stop flashing and remain on. You are now ready to stream music to the
K3 from the paired device. If your device is aptX compatible and contains
high resolution audio files, then these will be streamed in the original high
quality bit rate through the K3.

Page 13
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
NOTE: If you wish to revert to a line level or the MM phono input, push the
Bluetooth on/off button and it will disconnect and the light will turn off. You
can then select the required input as per normal operation. To reconnect to
Bluetooth you must push the Bluetooth on/off button again. You will then
have to re-connect the device (at which point the blue light will stop
flashing and remain on) but pairing is not necessary.
Knowing Your K3
When you first power up from the Mains Switch the amplifier will be fully
operational.
If the amplifier output current exceeds its safe operating range (very low
loudspeaker impedance and/or very high volume level) the protective
circuitry of the K3 will take the amp into Protection mode. If subsequently
lowered or the loudspeakers changed, the amplifier can be brought out of
the Protection state to resume as normal.

Page 14
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Troubleshooting
If you suspect that your ROKSAN K3 Integrated Amplifier is not operating
properly, you should check all the connections carefully. Pay particular
attention to speaker phasing and channel connections. Phono plugs should
be fully inserted - a frequent cause of problems is due to the phono plug
surrounds not making proper contact. On this page are some commonly
encountered problems with suggestions for possible cures. The list is not
exhaustive: If you have any unresolved problems, please consult ROKSAN
or your appointed ROKSAN dealer or distributor.
SYMPTOM !
LIKELY CAUSE !
SUGGESTED REMEDY !
No power !
AC Mains lead not inserted
properly Unit not switched on !
Ensure AC Mains lead is fully
inserted Switch unit on (on the
front underside) !
No output on
one or both
channels
Very low sound
output
Poor speaker
imaging, lack of
Bass output!!
Amplifier in PROTECTION
mode (MODE light GREEN)
Missing or bad input signal
connection Incorrect speaker
connection
Wrong input selected Tape
Monitor selected
Amplifier set in 20dB MUTE
position (MODE light AMBER)
Loudspeakers connected out of
phase!!
Check all input connections
Check speaker output
connections on rear panel
Select correct input, ascertain
source is working
Deselect Tape Monitor
Check polarity of speaker
connections (especially
important if Multi-wiring, Multi-
amping) !
Hum from
speakers !
Incorrect grounding !
Check Mains polarity and
grounding on all connected
equipment !

Page 15
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Guarantee
Your ROKSAN Product is guaranteed against any defect in materials and
workmanship for a period of five years from the date of purchase.
This guarantee only becomes effective once your product has been
registered within fourteen days of purchase. Roksan reserves the right to
ask for a copy of your purchase invoice.
This guarantee excludes:
1. Damage caused due to accident, misuse, neglect and incorrect
installation, adjustment or repair.
2. Liability for damage or loss during transit from the retailer or purchaser to
ROKSAN or its authorised distributor for the purposes of repair or
inspection.
Carriage costs to ROKSAN shall be borne by the consignor.
All claims under this warranty must be made through an authorised
ROKSAN retailer. If equipment returned for repair to ROKSAN is found on
inspection to comply with the product specification, ROKSAN reserves the
right to make a charge for examination and return carriage. Unauthorised
servicing will void this guarantee. Warranty will only be valid when the
product is bought through the authorised retailer. All the warranty issues
will be dealt through the selling retailer.
Warranty registration can be done online at:
http://www.roksan.co.uk

Page 16
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
K3 Integrated Amplifier
Specifications
Inputs:
!
!
Line Level (x5)
Moving Magnet (x1)
Bluetooth (x1)
Bypass (x1)!
Bluetooth:!!
aptX!
Input Impedance: !
47kΩ!
Input Sensitivity: !
Lines 510mV !
Outputs Speaker:
!
L & R (x1)
Preamplifier (x1)
Headphone (x1) !
Output Power:
>150 W Into 8Ω!Both Channels Driven
Power Supply:
550VA Ultra Low Noise Toroidal Transformer.
5 Regulated Supply Rails!
Frequency Response:!
(-3dB), <3Hz –!>100kHz !
Gain:!
37.3dB Overall (Pre & Power)!
Harmonic Distortion:!
<0.005% 1kHz - 8 Ohms!
Maximum Power
Consumption:!
Full Power 2-CH: 8Ω!<800W
!
Rated Power
Consumption:
800W
Dimensions:
432 x 380 x 90mm (W x D x H)
432 x 380 x 102mm (Incl. Feet)!!
Weight:!
14kg !

Page 17
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Notes:
Please keep a record for future reference:
Serial Number
Date of Purchase
Name of Roksan Retailer
Location

Page 18
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Additional Notes:

Page 19
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [email protected] | [phone]
ROK-1217 V2.3
April 2018
Additional Notes:

Page 20
Roksan Audio
c/o Monitor Audio Ltd, 24 Brook Road, Rayleigh, Essex, SS6 7XJ
www.roksan.co.uk | [e-mail] | [phone]
ROK-1217 V2.3
April 2018
!