Интегральные усилители — Audiolab 7000A

The 7000A is a two-channel integrated amplifier by Audiolab that combines a built-in DAC with an MM phono section. The maker places the 7000 series between its 6000 and 9000 ranges. The US list price is USD 1,999, the finish is black or silver, and the box includes a power cord, a remote control, a user manual and antennas.

Key specs that matter

Rated output is 2 x 70 W into 8 ohms and 2 x 110 W into 4 ohms from a Class AB power stage, with a maximum output current of 11 A. Inputs comprise three analogue line pairs, one MM phono, one power amplifier input, two S/PDIF coaxial, two S/PDIF optical, one HDMI ARC, one USB-B for a computer and Bluetooth 5.0 with aptX and aptX LL. Outputs are a preamp output, a stereo set of speaker posts and a 6.35 mm headphone socket, plus a 12 V trigger in and out. Line input sensitivity is 820 mV at 10 kohm, and the phono stage needs 3.1 mV at 47 kohm with 100 pF. Preamp gain is 6 dB for line and 55 dB for phono, preamp THD stays below 0.0005%, and the line inputs reach a signal-to-noise figure above 110 dB A-weighted. The case measures 444 x 340 x 78 mm and weighs 8.4 kg.

Engineering and use context

Inside, the supply rests on a 250 VA toroidal transformer followed by four 15,000 uF reservoir capacitors, 60,000 uF in total. The output stage follows a Complementary Feedback topology for linearity and thermal stability. The DAC is an ESS ES9038Q2M with 32-bit HyperStream design plus the Time Domain Jitter Eliminator. Optical and coaxial inputs accept 44.1 kHz to 192 kHz, while USB takes PCM up to 768 kHz and DSD up to DSD512, and MQA files are fully decoded. The DAC output level is 2.1 Vrms. The headphone amplifier is a dedicated current-feedback circuit with a 10 ohm output impedance for loads of 20 to 600 ohms. Three operating modes are selectable - full integrated, pre plus power, or preamplifier only. A 2.8 inch full-colour IPS LCD shows status, and standby consumption is below 0.5 W.

Pairing

A television connects through the HDMI ARC socket, and the separate power amplifier input allows the 7000A to act as the power stage for an external preamp or processor. The Audiolab 7000CDT transport in the same series matches the case width and height and connects via coaxial or optical cable.

Alternatives

The Audiolab 8300A is an earlier Audiolab integrated model featuring a dual-mono power stage, phono support for both MM and MC plus a balanced XLR line input.