Accuphase · A Series
$26,575
Accuphase · A Series
The A-80 is the stereo version of Accuphase's fiftieth-anniversary A-300: 65 watts of pure Class A per channel that doubles to 130, 260 and 520 watts into 4, 2 and 1 ohm from ten-parallel push-pull MOS-FETs.
Price is for one unit.
Authorized Accuphase dealer · Delivery and installation by Pearl Audio · Trade-ins welcome
The story
Accuphase developed the A-80 as a stereo amplifier version of the A-300, and it inherits the anniversary model's architecture. Ten parallel push-pull power MOS-FETs per channel run in pure Class A, arranged as an instrumentation amplifier with balanced inputs, behind a toroidal transformer and 120,000 µF of filter capacitance; output doubles with each halving of impedance, to 520 watts into 1 ohm on music signals, and in bridged mono it delivers 260 watts into 8 ohms. MCS+ parallel voltage amplification, current feedback and balanced remote sensing give a damping factor above 1,000.
Class A biasing means the A-80 idles at 211 watts and runs warm, and it rewards that with the effortless, grain-free sound that has made Accuphase's A series the choice of listeners who value texture over sheer level. MOS-FET switches handle protection without contacts in the signal path, and a four-position gain selector matches any preamplifier. With a C-3900S in front of it and speakers of moderate sensitivity, it is one of the finest stereo amplifiers we offer.
Accuphase builds every component in a single finish, so there is nothing to choose. The champagne-gold front panel has been the house signature since 1972. The top plate is hairline-finished aluminum.
| Type | Stereo power amplifier, pure Class A |
| Rated output (20 Hz–20 kHz, both channels) | 65 W/ch into 8 Ω; 130 W/ch into 4 Ω; 260 W/ch into 2 Ω; 520 W/ch into 1 Ω (4 Ω and below on music signals) |
| Bridged mono output | 260 W into 8 Ω; 520 W into 4 Ω; 1,040 W into 2 Ω |
| Output stage | Ten parallel push-pull power MOS-FETs per channel, Class A, instrumentation-amplifier configuration |
| Total harmonic distortion | 0.03% (4–16 Ω); 0.07% (2 Ω) |
| Frequency response | 20 Hz–20 kHz, +0/−0.2 dB (rated output); 0.5 Hz–160 kHz, +0/−3 dB (1 W) |
| Damping factor | 1,000 or greater |
| Gain | 28 / 25 / 22 / 16 dB, selectable |
| Input sensitivity / impedance | 0.91 V for rated output; 40 kΩ balanced (XLR), 20 kΩ line (RCA) |
| Signal-to-noise ratio | 123 dB (max gain); 129 dB (−12 dB gain); A-weighted, input shorted |
| Power supply | Toroidal transformer; 120,000 µF filter capacitors |
| Power consumption | 211 W idle; 260 W (IEC 62368-1) |
| Dimensions (W × H × D) | 18.3 × 9.4 × 20.3 in (465 × 240 × 515 mm) |
| Weight | 98 lb (44.6 kg) |
| Sold as | Single unit |
The stereo pure Class A amplifier. The A-300 is its monaural big brother; the P-4600 and P-7500 are the Class AB designs with more power per dollar.
Pair it with the C-3900S or C-2300. A second A-80 in bridged mode is the path to monaural Class A.
Plan your Accuphase system with Pearl Audio
Pearl Audio is an authorized Accuphase dealer in Portland, Oregon. We can help with system matching, delivery and setup, and arrange a listening appointment. Call (503) 222-2599 or email sales@pearlaudio.com.
The Pearl Audio experience
A system at this level should be heard, thoughtfully matched, and properly set up. From the first audition to long-term ownership, you work with the same people, in person.
Hear the A-80 Class A Power Amplifier by appointment in one of our two purpose-designed demonstration rooms, with your own music and time to compare without pressure.
We deliver and install throughout the Portland area, taking care of placement, connections, ventilation and system configuration ourselves.
We support everything we sell for as long as you own it, whether the answer comes by phone, in your home, or through factory service.
Trade-in assistance and qualifying 100% Trade-Up options give you flexibility when your listening priorities or your system change.
