A7 amplifier is of a combination of pre-amplifier and power amplifier. The pre-amplifier adopts a military level op-amp - OPA2604 from BB Company(Burr Brown, another package of this model has been mounted for spaceship) which is of high accuracy, good resolution and extremely low frequency and excellent performance in all frequency, and extra lowest cross talk for the stereo signal. The power amplifier each channel was particularly powered by two pieces of TDA7293 amplifier module in parallel connection.TDA7293 level is 100W MOS amplifier, it is a voltage control gain amplifier, and with same principle and sound compares with Tube amplifier. So that TDA7293 is known as with Tube effect amplifier. Two pieces of TDA7293 working in parallel circuit for each channel has extraordinary performance, sound overall sound more exquisite than only one piece of TDA7293, its dynamic range control improved a lot.



Total harmonic distortion: (THD) 0,01% (1kHz, 1W)

Rated output power: (THD <1%) 60W+60W (8 ohm), 85W+85W (4 ohm)

Music power: 150W+150W (4 ohm)

Frequency response: 15Hz-25kHz

Signal to noise ratio: 90dB

Channel separation: 80dB

Input interface: Two group Lotus socket switch (RCA), one group with 3.5mm stereo input

Output interface: Two set of gold plated copper crystal standard banana plug

Dimensions: 235 x 75 x 340 mm (W x H x D)

Weight: 5.5 kg


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Soundpressure A7 amplifier

  • 3,800kr

  • Ex Tax: 3,040kr

Tags: Soundpressure-A7