Amp-D2 Mono / Amp-D2 Stereo

Power Amplifiers

  Our main goal with the AudioZone Amp-D2 series is to take full advantage of the current state of the art in audio power amplifier and regulated power supply design to deliver our clients a unique small form factor audiophile power amplifier with exceptional specification, sound quality, build quality, versatility and performance. The Amp-D2 products are the smallest physical size that we can reasonably produce without compromise. Four of our amplifiers take up the same amount of space as a large 3U rack mount amplifier but are able to provide 4 to 8 audio channels with up to 4,000 continuous watts output in the same physical space.The highest quality of parts available are used in our designs with special consideration for the feel, look and functionality of each part.

  A sophisticated Universal Switching Power Supply with Power Factor Correction ensures exceptionally smooth 

operation with a huge regulated power output. An additional shielded line filter, magnetically and electrically shielded supply cover and out of phase operation of the second amplifier channel add significant performance improvements and allows for approved mains use in almost all countries worldwide.  

  To achieve identical characteristics both inverting and non-inverting, we chose a “no compromise” instrumentation amplifier for input interfacing duties vs more traditional 

single op amp solutions. A version with JT-10KB-DPC input transformers replacing the active circuitry is also available by special order for high noise environments

  The amplifiers provide protection from over temperature, over current, excessive H.F., D.C., over/under supply voltage, and a clip-limiter.  The current limiter will allow peak currents of 30 A with audio signals without taking action, while the clip-limiter will begin to reduce the audio input signal until the output current is lowered. If the clip-limiter is not capable of limiting the output current enough, the amplifier will disable to protect itself. A multi-function display that changes the colour of our logo quickly indicates “protect”, “operate”, and “clip-limiting” of the amplifier. A discrete ring on the power switch indicates the standby condition.

  The input can switched via a back panel toggle between unbalanced (RCA) and balanced (XLR) operation with effective isolation between the two inputs. This feature can be used to select between two discrete inputs or as a mute/operate switch with one source. Remote operation of an amplifier is accessible via two internally paralleled 3.5 

mm connectors using anywhere from 4 to 20 Vdc as a trigger. A user programmable microprocessor and a field serviceable analogue module allow for simple and cost effective future expansion or modification.  Proposed modules include speaker compensation boards, electronic crossovers, wireless signal input, etc…

  We have found that our finished amplifiers produce a compelling, effortless and neutral sound regardless of loudspeaker type, which seems a near perfect replica of the source. Our amplifiers are of the highest quality and built to satisfy the most demanding user regardless of cost or expectations.