Home Shopping Cart | Wish List | Affiliates | Customer Service  

  Login  
You have 0 item(s) in your Shopping Cart  
Search
 
 
 
  Browse By Category


  Browse By Manufacturer


Help & Info

 


 
Now In: Amplifiers → Couplet Amplifier

previous | up | next
 
Couplet Amplifier  

 E-mail this product to a friend

'the benchmark against which all other power amplifiers will have to be judged in the future.'
The Chapter Couplet is a 'state of the art' audiophile two channel power amplifier incorporating a unique combination of design features coupled with scrupulous attention to technical detail. The objective is to provide a product capable of great musicality and realism without adding any noticeable 'character' of its own. Additionally to be able to drive the most difficult speaker loads on the market today without compromising stability. By bringing together engineers and designers with a lifetime's experience in audio and power systems design we believe this objective has been more than achieved.
A top-flight amplifier should boast exemplary specifications. Indeed the Chapter Couplet achieves this but not purely for the sake 'specmanship'. Hundreds of listening tests and auditions by recognised audio experts have gone into honing the Couplet. The result - musicality with a first class technical specification. The amplifier is based around the company's own 'WMT' Class D amplifier technology that gives very low distortion perfromance. This forms a proven, robust and reliable foundation for the power amplifier design. But, this on its own is not enough to produce class-leading performance. Further extensive research has gone into refining this topology to achieve the final result, the Chapter Couplet.
Chapter Couplet Power Supply
The Chapter Couplet features our new Zero Ripple, high frequency power supply. This groundbreaking technology uses four synchronous magnetic switching output stages, utilising multiphase spread spectrum techniques , that give an effective switching frequency of 800Khz (4x Fsw) and lower noise than any Linear PSU. That coupled with the benefits of high regulation loop bandwidth and 300,000uF of output capacitance (providing effective output storage in excess of 500Joules of energy). This storage is necessary for providing zero power supply ripple at low frequency and is essential for sustained deep and controlled bass.
Unique circuitry coupled with expert RF filter design and layout allows the Chapter Couplet to meet the most stringent tests for radiofrequency emissions including the EN broadcast specification.
 

TECHNICAL SPECIFICATIONS

Electrical

Rated Power:

200W rms. into 8 ohms. 400W rms into 4 ohms, continuous sine both channels driven.

Distortion:

Less than 0.03% THD at rated power and 1KHz. less than 0.05% at rated power

and 20KHz (into 4 - 8 ohms)

Signal to Noise:

Better than 130dB (A weighted) at tull power, better than 85dB (A weighted) ret 1W

into 8 ohms

Frequency response:

0.5 Hz to 48KHZ +0. -3dB

5 Hz to 30KHZ +0. - 0.5dB

Phase shift

Less than +/-17 degrees total from 5 Hz to 22.5KHZ

Power consumption:

Max 1,2kW total at better than 0.95 power factor

Fuse rating:

16A thermal breaker fitted to the amplifier back panel.

Protection:

Fully electronic with relay speaker disconnect on DC error, short circuit output,

or continuous overload and/or clipping.

Sensitivity:

26dBV

Phase:

Non inverting, ret XLR pin 2(+) or phono input.

Mechanical

Input sockets:

2 x XLR for balanced line operation

2 x Phono for single ended operation (switch selectable)

Output sockets:

2 x WBT-0765 4mm binding posts per channel.

Finish:

Bead Blasted anodised aluminium alloy casework and heat-sink assembly, glass lens.

Power on/off switch and indicator. Filtered IEC mains input socket.

Weight:

18 Kg approx.

Size:

437 x100 x300 mm (WxHxD) approx.


Couplet Amplifier
SKU:Couplet Amplifier
Price:$6,500.00