The P3000 HV pre-amplifier and the A 3000 HV power amplifier share many components with the PA 3000 HV, as well as the fundamental design principles and circuit topology. Most of the case components are the same, and the PA 3000 HV and A 3000 HV also employ the same mains units and voltage supplies, output stages, input amplifier and high-voltage amplifier stages. The P 3000 HV pre-amplifier also shares many parts such as the input section, the pre-amplifier, the relay-based volume control, the output section and the front case profiles, complete with control processor and VFD screen.
Achieving absolutely outstanding results from combined devices – such as integrated amplifiers – is more difficult than from separate components, because both the sensitive pre-amplifier stages and the powerful output stages are required to share a common case.
This problem calls for great sophistication in design, and that is why our cases are sub-divided into separate compartments made of 10 mm thick aluminium plates. This construction provides highly effective shielding between the various sub-assemblies, and in this way our development team has succeeded in producing superb sound quality: the measured values, the specification and the power generated by the amplifier are at the limits of what is physically feasible from an integrated amplifier of this size. The components and materials are uncompromisingly first-rate, and the casework sets such high standards that it is superior to much more expensive equipment.
- Frequency response + 0 / – 3 dB 0,5 Hz –300 kHz
- Signal / noise ratio 105 / 110 dB
- Total harmonic distortion < 0,001%
- Intermodulation < 0,001%
- Channel separation > 90 dB
- Nominal input sensitivity
- High level (RCA) 7 x 250 mVeff ... 6 Veff / 20 kOhms
- Balanced (XLR) 4 x 500 mVeff ... 12 Veff / 5 kOhms