Aurea CT 160 Operating Instructions Manual Download Page 3

This amplifier will only operate to its very high specification if it is installed and operated as described in this

manual.

INTRODUCTION

Your

T Series

power amplifier is a no compromise, high quality, class AB power amplifier. There is no dynamic

switching of the audio or power rails (a very common method of achieving extra power at the expense of audio

quality) thus ensuring optimum sonic performance.

Fan speed is varied as required to keep the amplifier within its temperature limits. Signal limiters are included to

protect speakers from clipped signals.

The amplifiers include full DC and short circuit protection to ensure trouble-free service even in ‘harsher’

environments.

INSTALLATION

:

ELECTRICAL

The amplifier has been manufactured to comply with your local power supply requirements, but before connecting

the unit to the supply, ensure that the voltage (printed on the rear panel) is correct, and that a mains fuse of the

correct type and rating has been fitted (EXCEPT CT 160 WITH CIRCUIT BREAKER).

Make sure power outlets conform to the power requirements listed on the back of the unit. Damage caused by

connecting to improper AC voltage is not covered by the warranty.

SAFETY WARNING

This unit is fitted with a 3-wire power connector. For safety reasons, THE EARTH LEAD SHOULD NOT BE

DISCONNECTED IN ANY CIRCUMSTANCE. If ground loops are encountered consult the section on input connections

later in this manual.

WHERE A FIXED MAINS LEAD IS FITTED, THE WIRING COLOURS ARE:

230V AREAS:

EARTH = GREEN AND YELLOW

NEUTRAL = BLUE

LIVE = BROWN

120V AREAS:

EARTH = GREEN

NEUTRAL = WHITE

LIVE = BLACK

TO PREVENT THE LIKELIHOOD OF SHOCK OR FIRE HAZARD, DO NOT EXPOSE THE UNIT TO RAIN OR MOISTURE.

DO

NOT PLACE OBJECTS CONTAINING LIQUID ON TOP OF THE APPARATUS.

TO AVOID ELECTRICAL SHOCK DO NOT REMOVE COVERS. REFER ALL SERVICING TO QUALIFIED PERSONNEL.

DO NOT USE THE UNIT IF THE ELECTRICAL POWER CORD IS FRAYED OR BROKEN. The power supply cords should be

routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular

attention to cords and plugs and the point where they exit from the appliance.

ALWAYS OPERATE THE UNIT WITH THE AC GROUND WIRE CONNECTED TO THE ELECTRICAL SYSTEM GROUND.

Precautions should be taken so that the means of grounding of a piece of equipment is not defeated.

DO NOT REMOVE THE LID. Removing the lid will expose you to potentially dangerous voltages. There are no user

serviceable parts inside.

Summary of Contents for CT 160

Page 1: ...T Series Series 2 OPERATING INSTRUCTIONS DT 450 CT 160 LINE Proud Technology Partner of ...

Page 2: ...ciruit DC output Temperature Yes Yes Main s in rush control Yes Yes Output Power watts into 8 ohms Sine wave 1kHz 475 150 Continuouis music with Crest Factor of 2 8 9dB 550 160 Continuouis music with Crest Factor of 4 8 14dB 575 160 Continuouis music with Crest Factor of 7 8 18dB 625 175 Output Power watts into 4 ohms Sine wave 1kHz 875 260 Continuouis music with Crest Factor of 2 8 9dB 975 260 Co...

Page 3: ...improper AC voltage is not covered by the warranty SAFETY WARNING This unit is fitted with a 3 wire power connector For safety reasons THE EARTH LEAD SHOULD NOT BE DISCONNECTED IN ANY CIRCUMSTANCE If ground loops are encountered consult the section on input connections later in this manual WHERE A FIXED MAINS LEAD IS FITTED THE WIRING COLOURS ARE 230V AREAS EARTH GREEN AND YELLOW NEUTRAL BLUE LIVE...

Page 4: ...ed on the equipment 16 To completely disconnect this equipment from the AC mains disconnect the power cord from the mains circuit breaker 17 Where the amplifier is mounted in a rack and permanently connected to the mains then the rack should be installed with a readily accessible connector or an ALL POLE circuit breaker with 3mm breaking distances 18 This unit is fitted with a 3 wire power cord Fo...

Page 5: ...ally balanced and should be connected via a high grade twin core screened cable as follows PIN1 Screen see note PIN2 Hot signal PIN3 Cold signal The amplifier is designed to operate with fully balanced equipment and ground loops or loss of performance may be experienced if connected to unbalanced sources If it is unavoidable however the following wiring should be used The cable should still be twi...

Page 6: ...ch marked Bridged Mono Use Channel A Output Speakon connector and connect as follows HOT Pin 2 COLD Pin 1 BRIDGED MONO OPERATION CT 160 Use centre Speakon connector marked BRIDGED and connect as follows HOT Pin 1 Channel C IN PHASE COLD Pin 1 Channel D OUT OF PHASE When operating in bridged mode the minimum impedances are doubled The minimum load in bridged mode is DT 450 4 ohms CT 160 Ch C D only...

Page 7: ...ing the output The red Audio Protect A P LED will indicate this condition see fault indicator On the DT 450 there are two cooling fans The second rear fan can be set to only work when the temperature exceeds 90 C A jumper link JF3 is normally set to permanently enable FAN2 so that it varies in speed proportional to temperature in conjunction with FAN1 The CT 160 has two fans with variable speed an...

Page 8: ...n all 4 links should be fitted MAINTENANCE ENSURE THAT ELECTRICAL POWER TO THE UNIT IS DISCONNECTED BEFORE CARRYING OUT ANY MAINTENANCE The filter behind the air intake apertures on the front of T Series amplifiers should be cleaned or replaced periodically e g 12 24 months Filters in amplifiers located in more dirty atmospheres may require more frequent maintenance The filter should be dry cleane...

Page 9: ... A QUALIFIED SERVICE ENGINEER TECHNICAL SPECIFICATION DT LINE Rated power handling 250W 500W 750W input impedance 4 Output impedance rated 100V 40 0 20 0 13 3 70V 19 6 9 8 6 5 50V 10 0 5 0 3 3 Frequency response 50Hz 16kHz 1dB Distortion THD 50Hz 16kHz 0 03 Weight each Chassis only 12kgs 250W transformer 2 3kgs 500W transformer 2 8kgs 750W transformer 4 4kgs Dimensions mm 2U 88 x 482 x 428 When mo...

Page 10: ...e roll off is normally at 24dB per octave On the DT 450 the roll off is included on the main board as standard To bring the 63 Hz roll off into circuit remove the 4 jumper links at hpf The response must be at least 3dB at 70 Hz and roll off at minimum 12dB per octave LINE TRANSFORMER LEAD OUTS 250W and 500W single 100V winding Primary Orange ve Black ve 4 ohms Secondary Yellow ve Grey ve 100V Blue...

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