Audio Database

6260
Commentary

Dual channel power amplifier developed from acoustic technology and amplifier theory in SR.

The input circuit uses a dual-FET balanced bridge differential input method and the driver stage uses a complimentary service cascade connection to improve the drive capability of the bipolar transistor to the Darlington power stage.
In addition, we have achieved high stability by optimizing feedback at each stage and minimizing overall feedback.

It can also be used as a monaural power amplifier by bridge connection.

Model Rating
Type Stereo power amplifier
Rated output
  20 Hz to 20 kHz 1kHz
8 Ω, Both channel operation : 150W+150W 190W+190W
4 Ω, Both channel operation : 300W+300W 315W+315W
8 Ω, bridge (mono) : 600W 630W
Frequency characteristic 20 Hz ~ 20 kHz + 0 -1dB
Total harmonic distortion factor 0.01% or Less (0.25W ~ Rated Output, 8 Ω Load)
Cross modulation distortion factor Not more than 0.1%
Signal-to-noise ratio 100 dB or more
Input impedance Balanced : 40k Ω
Unbalanced : 20k Ω
Pwer 100 VAC, 50Hz/60Hz
Power consumption 50W (idle)
600W (at rated output, 8 Ω, stereo)
1,180W (Rated Output, 4 Ω, stereo)
External dimensions Width 483x Height 178x Depth 267 mm
Weight 19.0 kg (according to 1987 catalog)
20.2 kg (according to 1988 catalog)