A 70

Thông số

The output stage of the A-70 features power MOS-FETs renowned for their excellent frequency response, sonic performance, and superior reliability. In the output circuitry, ultra-heavy-gauge edgewise coils with a surface area more than three times larger than conventional units, combined with MOS-FET switches are used in place of relays, to eliminate mechanical contacts and improve long-term reliability. Top-grade materials, sophisticated circuit pattern technology, and various other measures result in low impedance and enable the realization of a damping factor of 800, which represents a two-fold improvement over the A-65.

Pure Class A operation delivers quality power: 60 watts x 2 into 8 ohms

Power MOS-FET output stage features 10-parallel push-pull configuration and delivers linear high power progression to ultra-low 1-ohm impedances

Ultra low-noise instrumentation amplifier principle used in input stage

Amplification stage implements further evolved MCS+ topology

Current feedback principle combines stable operation with outstanding sound quality

Bridged connection mode allows upgrading to monophonic amplifier

Two selectable meter types: digital power meters showing true power values and bar graph indicators

 Continuous Average Output Power (20–20,000 Hz) Note: Load ratings marked (＊) apply only to
Power Pure Class A công suất: 60 watts ×2 (8 ohms)
10 sò MOS FET nối song song với mạch Push-Pull

480 watts per channel into 1 ohm

240 watts per channel into 2 ohms
120 watts per channel into 4 ohms
60 watts per channel into 8 ohms

Monophonic operation 
(bridged connection)

960 watts into 2 ohms ( cho âm nhạc)
480 watts into 4 ohms
240 watts into 8 ohms

Độ méo hài toàn phần:

Cả 2 kênh hoạt động
0.07% with 2 ohm load
0.03% with 4 to 16 ohm load
Nối cầu Mono
0.05% with 4 to 16 ohm load

Kích thước
Rộng: 465 mm (18-5/16")/Cao 238 mm (9-3/8")/Sâu 515 mm (20-1/4")
Trọng lượng:44.3 kg (97.7 lbs) net/54.0 kg (119.0 lbs) in shipping carton