T+A A 3000 HV Power Amplifier
Please call our store to purchase: 904-642-6677
The A 3000 HV is the ideal power amplifier and complement to the P 3000 HV pre-amplifier. It is designed as a stereo power amplifier, but can also be configured to work in mono mode, in which guise it is capable of delivering twice the current and in which it doubles the pure Class-A mode.
HV units can not be purchased online - Please call us and we will handle your questions and purchases personally
Thanks to HV technology, this powerhouse offers superb sound characteristics as well as incredible power and performance: a standard which is unsurpassed even by much more expensive amplifiers. The principle of splitting a High-End system into separate pre-amplifier and power amplifier gave our development team the opportunity to implement the finest possible circuit designs and technologies without having to take into account space considerations and case restrictions. This applies both to the electronic components and the mechanical design of the case, since – if the aim is to attain the best possible sound – a preamplifier’s requirements are fundamentally different from those of an power amplifier: preamplifiers process relatively small signals, and the crucial aspect of their design is the avoidance of induced and other interference; power amplifier, on the other hand, have to cope with relatively large signals, and the stability of the power supply, its current delivery capacity and performance independent of load are much more important.
The entire electronic power circuit with output stages and mains power supply is housed in its own shielded compartment in the underside of the machine. The dividing wall between top and bottom sections is 10 mm thick and – of course – is also made of aluminium. Voltage amplification and current amplification circuitry is housed on separate circuit boards in separate case sections, in order to prevent mutual interaction. The sophistication of the design does not stop there, as we have even provided galvanic separation between the two. Thanks to this uncompromising design philosophy there is absolutely no feedback of the loudspeaker currents into the voltage amplifier stages, and complete freedom from loudspeaker loading effects. The voltage amplifier is an extremely linear, broad-band, cross-coupled differential cascode amplifier, followed by a single-ended Class A large signal stage which provides superb sound quality.
The enormous power of the power amplifier calls for particularly high-quality, stable loudspeaker terminals; they are machined from solid pure brass and rhodium-plated on every surface. Rhodium is the perfect contact material: as conductive as silver, as durable as platinum, as corrosion-resistant as gold (and unfortunately as expensive as all three put together).
For the most exacting requirements a further option exists for improving the quality of the voltage and current supply: this is the PS 3000 HV supplementary mains unit.
All measurements at 120 / 240 V mains voltage
RMS output per channel stereo mode
into 8 Ohms - 300 Watts
into 4 Ohms - 500 Watts
Peak output per channel stereo mode
into 8 Ohms - 380 Watts
into 4 Ohms - 700 Watts
RMS output Mono mode
into 8 Ohms - 380 Watts
into 4 Ohms - 650 Watts
Peak output Mono mode
into 8 Ohms - 430 Watts
into 4 Ohms - 800 Watts
1 Hz – 150 kHz
Frequency response + 0 / – 3 dB
0,5 Hz – 180 kHz
Signal / noise ratio
> 115 dB
Total harmonic distortion
< 0,03 %
Mains / Accessories / Dimensions
110-120 V/60 Hz oder 220-240 V/50 Hz / 1500 W
< 0,5 W
Trigger input +5 … 20V for external switching-on
Dimensions (H x W x D)
17 x 46 x 46 cm
Case: silver laquer 47 or titanium laquer 64,
heat sink: black 42