Roksan Audio Stereo Amplifier M series 1 User Guide

C a s p i a n  
Mseries -1  
Mono Power Amplifier  
U S E R M A N U A L  
R O K S A N A U D I O L I M I T E D  
6 NORTHFIELD INDUSTRIAL ESTATE  
BERESFORD AVENUE  
MIDDLESEX HA0 1NW  
ALPERTON  
ENGLAND  
T E L .  
F A X .  
+ 4 4 ( 0 ) 2 0 8 9 0 0 6 8 0 1  
+ 4 4 ( 0 ) 2 0 8 9 0 0 6 8 0 2  
+ 4 4 ( 0 ) 2 0 8 9 0 0 0 7 3 4  
w w w . r o k sa n . c o . u k  
e ma i l in f o @ r o k s a n . c o . u k  
 
CAUTIONS  
C a s p i a n Mono Power Amplifier  
AC MAINS SUPPLY  
Your Caspian Power 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 this  
label as below:  
230V Products ………………………………….Voltage Range: 220V – 240V  
115V Products ………………………………….Voltage Range: 100V – 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. In the UK  
this is the standard UK13A plug.  
This plug should ordinarily not be removed from the lead. If you do remove it, please dispose of it safely so that it  
cannot be plugged into a mains socket whilst in a potentially dangerous condition. We suggest that you obtain  
from your dealer a complete replacement lead.  
Should you move to another area where either the mains voltage or the mains plugs are different from those as  
supplied with your Power Amplifier, please contact the appointed ROKSAN distributor for assistance.  
Please observe correct mains polarity at all times.  
The Power Amplifier mains fuses are located on the rear panel next to the IEC mains connector. These must  
only be replaced by the fuse type and rating as described on the fuse rating label on the rear panel of the unit.  
If the equipment is likely to be unused for some time, unplug it from the mains supply.  
GENERAL CAUTIONS  
FCC WARNING  
This equipment may generate or use Radio Frequency energy. The user may lose the right to operate this  
equipment if unauthorised modifications are made.  
INTERFERENCE  
Properly installed, this unit should not cause harmful interference to radio communications, There is, however, no  
guarantee that such interference will not occur in a specific installation. If interference arises (which you can  
determine by switching the unit off and on) you could try to remedy this problem by the following:  
Re-orient or re-locate the receiving antenna  
Increase the distance between the Power Amplifier and receiver  
Connect the unit to a different mains circuit from that of the receiver  
Consult your ROKSAN appointed dealer or an experienced Radio/TV technician for help and advice  
LOCATION  
Your Caspian Power Amplifier should be located in a well ventilated area and kept away from sources of heat,  
dust, humidity and direct sunlight.  
The Power Amplifier may be positioned either as a free standing unit or alongside another audio/video product.  
Never place the Power Amplifier on carpet or any surface likely to hinder normal ventilation.  
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.  
Roksan Audio ltd  
Caspian Mono Power Amplifier User Manual  
CLASSIFICATION: General Use  
version 2.05  
All specifications are liable to change without notice. E&OE  
Page 3  
ENGLISH  
 
INSTALLATION  
C a s p i a n Mono Power Amplifier  
ROKSAN Caspian Mono PowerAmplifier- Front Panel View  
1
R O K S A N  
C a s p i a n  
Mono Power Amplifier  
Mseries-1  
1.  
Mode Indicator  
ROKSAN Caspian Mono Power Amplifier - Rear Panel View  
1
2
3
4
5
6
8
7
1.  
2.  
3.  
4.  
5.  
6.  
7.  
8.  
Power Amp Input  
Chain Output  
Speaker Output (1st Set)  
Speaker Output (2nd Set)  
AC Mains Input  
Voltage & Fuse Label  
AC Mains Fuseholder  
AC Mains Power Switch  
Roksan Audio ltd  
Caspian Mono Power Amplifier User Manual  
CLASSIFICATION: General Use  
version 2.05  
All specifications are liable to change without notice. E&OE  
Page 4  
ENGLISH  
 
SETUP  
C a s p i a n Mono Power Amplifier  
CONNECTING MAINS POWER  
Please refer to rear panel view on Page 4. The moulded IEC connector of the supplied mains lead should be  
plugged into the socket (5) on the rear of the unit first and then plugged into the mains supply. The Mains power  
switch (8) is on the rear panel of the Power Amplifier. This switch is normally left on. If the unit is likely to be  
unattended for a long period, switch it off and unplug the mains lead from the wall.  
SIGNAL CONNECTIONS  
Signal Input connections:  
Input socket is high quality gold plated RCA Phono Socket and should be connected  
to corresponding preamplifier output.  
Connecting a Preamplifier:  
Connect the Preamplifier Output to the INPUT SIGNAL Sockets (1) on the rear panel  
of the Caspian Mono Power Amplifier.  
Chain Connecting Multiple Amplifiers:  
If the preamplifier used does not have sufficient number of pre outs, connect the  
CHAIN OUT Socket (2) on the rear panel of the first Caspian Power Amplifier to the INPUT SIGNAL Sockets of  
the second unit, and so on. Several amplifiers can operate together in this way.  
Bi-amplifiying with the Caspian Dual Mono Preamplifier:  
Connect the PRE 1 OUT Sockets on the rear panel of the Caspian PreaAmplifier to  
the INPUT SIGNAL Sockets (1) of the first pair of Caspian Mono Amplifiers and the PRE 2 OUT Sockets to the  
INPUT SIGNAL Sockets (1) of the second pair of Caspian Mono Amplifiers (See diagram on Page 6).  
IMPORTANT NOTE: For optimum performance it is recommended to use high quality inter-connect cables such  
as ROKSAN HDC-02A high definition analogue Cable.  
LOUDSPEAKER CONNECTIONS  
The loudspeakers are connected to the amplifier via the rear panel binding posts (3) and/or (4). 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 overal 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 12mm (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 5mm 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 (-) amplifier  
terminal.  
When both left and right channels are connected to their respective speakers the  
amplifiers are ready for use.  
IMPORTANT NOTE: For optimum performance it is recommended to use high quality cables such as ROKSAN  
HDC-02S high definition Loudspeaker Cable. Many speaker cables such as the ROKSAN HDC-02S are  
directional. Please observe this directionality. DO NOT use speaker cable with conductor size less than 16 AWG  
(1.6mm Diameter). The Binding posts accept conductor sizes up to 12 AWG.  
Roksan Audio ltd  
Caspian Mono Power Amplifier User Manual  
CLASSIFICATION: General Use  
version 2.05  
All specifications are liable to change without notice. E&OE  
Page 5  
ENGLISH  
 
MULTI-WIRING AND MULTI-AMPING  
LF  
HF  
Multi-Amping The Loudspeakers  
Operation  
If the Loudspeakers utilise more than one drive unit with individual input terminals, for example a Tweeter and a  
Woofer, then the loudspeaker performance will benefit from Bi-Amping. 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 far better with most amplifiers when Multi-Amped than using one yet more powerful  
amplifier. Note: Bi-Wiring reduces the impedance seen by the Woofer and the Tweeter and is a first step towards  
Bi-Amping.  
OPERATION  
C a s p i a n Mono Power Amplifier  
Please refer to the front and rear panel views on page 4.  
SWITCHING ON  
The Mains power switch (8) is located on the rear panel of the amplifier. This switch should be left ON for normal  
operation. If unattended for a long period, the Mains power should be switched OFF and the lead disconnected  
from the Mains socket on the wall.  
When switched ON from the rear panel, after running a quick self-test your Caspian Mono Power Amplifier enters  
operational mode. The MODE Indicator Light (1) will glow RED.  
Roksan Audio ltd  
Caspian Mono Power Amplifier User Manual  
CLASSIFICATION: General Use  
version 2.05  
All specifications are liable to change without notice. E&OE  
Page 6  
ENGLISH  
 
AUTOMATIC OPERATION  
The Caspian Mono Power Amplifier auto senses the audio signal and remains operational while there is a signal  
present with the MODE indicator RED. It will prepare itself for standby after approximately 2 minutes of no signal  
and the MODE indicator will change colour to ORANGE. If there is still no signal for about 20 minutes, it will go  
into stand by and the MODE indicator will glow GREEN. As soon as a signal is detected, it will come out of  
standby and revert to operational mode with the MODE indicator will glow RED again.  
With this facility the Caspian Mono Power Amplifier is ideal for Multi-amping, high-end A/V installations or in any  
application, (e.g. multi-room), where the amplifier is required to switch ON and OFF with the rest of the system  
with no loss of functionality.  
KNOW YOUR CASPIAN  
When you first power up from the Mains Switch on the rear panel, the amplifier runs a quick self-test and  
then enters operational mode with the Indicator glowing RED.  
During Standby, the power consumption of the amplifier is reduced thus reducing generated heat.  
If the amplifier detects a fault, such as power rail failure, over current etc. it will go into protection mode and  
the indicator will flash. You can only bring the amplifier out of this mode when the fault is cured by simply  
switching it off and on.  
If the amplifier overheats through overload or lack of ventilation, it will also enter protection mode. When it  
has cooled down you will be able to bring it out of this mode.  
In the unlikely event of an internal fault such as a power supply fault, the amplifier will go to permanent Standby.  
TROUBLESHOOTING  
C a s p i a n Mono Power Amplifier  
If you suspect that your ROKSAN Caspian Mono Power Amplifier is not operating properly, you should check all  
the connections carefully. Pay particular attention to speaker phasing and signal connections. Phono plugs  
should be fully inserted- a frequent cause of problems is that Phono plug surrounds do not make proper contact.  
Below are some commonly encountered problems with suggestions for possible cure. The list is not exhaustive:  
If you have any unresolved problems, please consult your appointed ROKSAN dealer or distributor.  
SYMPTOM  
LIKELY CAUSE  
SUGGESTED REMEDY  
No power  
AC Mains lead not inserted properly  
Ensure AC Mains lead is fully inserted  
Unit not switched ON at rear panel  
Switch unit ON at rear panel  
No output  
(Indicator Light RED)Amplifier in stand- Check speaker output connections on  
by mode. Bad speaker connections  
rear panel  
(Indicator Light RED) No input signal.  
Missing or bad input signal connection  
Check source is connected and  
playing.  
Check all input connections  
Over heating  
Allow amplifier to cool, increase  
ventillation or use at lower volume  
Check polarity of speaker connections  
(especially important if Multi-wiring,  
Multi-Amping)  
Poor speaker imaging, lack  
of Bass output  
Loudspeakers connected out of phase  
Hum from speakers  
Incorrect Grounding  
Check Mains polarity and grounding on  
all connected equipment  
There are no user-serviceable parts inside your Caspian Power Amplifier. If a fault should develop, refer any  
servicing to your appointed ROKSAN dealer, distributor or ROKSAN approved service agent.  
Roksan Audio ltd  
Caspian Mono Power Amplifier User Manual  
CLASSIFICATION: General Use  
version 2.05  
All specifications are liable to change without notice. E&OE  
Page 7  
ENGLISH  
 
GUARANTEE  
C a s p i a n Mono Power Amplifier  
Your ROKSAN Caspian Mono Power Amplifier is guaranteed against any defect in materials and workmanship  
for a period of two years from the date of purchase.  
This guarantee only becomes effective if the warranty card is validated by the ROKSAN retailer from whom the  
equipment was purchased and returned to ROKSAN within 28 days of purchase.  
This guarantee excludes:  
1. Damage caused due to accident, missuse, 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 guarantee 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.  
SPECIFICATIONS  
C a s p i a n Mono Power Amplifier  
Input Impedance  
Input Sensitivity  
Signal Inputs  
38 k  
700mV RMS  
Signal In x1  
Signal Outputs  
Power Outputs  
Output Power  
Chain Output x1  
Loudspeaker x2  
100 Watts, into 8Ω  
175 Watts, into 4Ω  
250 Watts, into 2Ω  
330 Watts, into 1Ω  
(Note: Low impedance loads driven continuiously at high power may cause the amp to trip into protection mode)  
Power Supply  
Current Output  
Damping Factor  
350VA Ultra Low Noise Toroidal Transformer  
80 Amps Peak to Peak  
400 (8)  
Frequency response  
Gain  
-3dB, <2Hz – >150kHz  
30.7dB  
Harmonic Distortion  
0.0015% 1kHz, 0.008% 20kHz 10W - 8Ω  
0.002% 1kHz, 0.02% 20kHz 50W - 8Ω  
Signal to Noise Ratio  
Power Source  
>116dB (ref 85W, 8)  
100V – 120V 50Hz / 60Hz  
220V – 240V 50Hz / 60Hz  
(via Mains inlet filter)  
Power Consumption  
Dimension  
< 230 W  
432 x 330 x 70 (W x D x H) mm  
432 x 330 x 80 (including feet)  
Weigth  
12 Kg  
Roksan Audio ltd  
Caspian Mono Power Amplifier User Manual  
CLASSIFICATION: General Use  
version 2.05  
All specifications are liable to change without notice. E&OE  
Page 8  
ENGLISH  
 
NOTES  
C a s p i a n Mono Power Amplifier  
Caspian Mono Power Amplifier Mseries-1  
Serial Number: …………………………  
Year .……… Month …….. Day ……..  
Purchase Date  
ROKSAN Retailer  
Name:  
…………………………………  
Location: ………………………………  
Please keep a record for future reference  
Roksan Audio ltd  
Caspian Mono Power Amplifier User Manual  
CLASSIFICATION: General Use  
version 2.05  
All specifications are liable to change without notice. E&OE  
Page 9  
ENGLISH  
 

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