We are currently developing a new power amplifier at Bakun Products.
It is almost finished,AMP-5521
Here is an excerpt of data from Bacoon's Facebook page. I'm looking forward to it.
Maximum output power at 10% distortion at 4 ohm load: 54W
10% distortion rate maximum output into 8 ohms: 35W
1% distortion rate maximum output into 4 ohm load: 44.3W
1% distortion rate maximum output into 8 ohm load: 28W
Frequency response (1W into 8Ω): 20Hz: 0db, 20KHz: 0db, 50KHz: -0.6db, 100KHz: -6.29db
10W into 8Ω: 20Hz: 0db, 20KHz: 0db, 50KHz: -0.7db, 100KHz: -6.4db
S/N ratio: VRmax: -100db, VRmin: -127db
Output vs. distortion (1KHz)
Output(W) 4Ω 8Ω
0.1 0.1 0.047
0.2 0.14 0.061
0.5 0.22 0.1
1 0.32 0.15
2 0.47 0.23
5 0.76 0.38
10 0.82 0.57
20 0.91 0.68
28 1
30 0.95
35 10
40 1
50 7.4
54 10
The bandwidth is extended and distortion is fair for a non-reduction amplifier.
As a characteristic of SATRI amplifiers, noise is reduced when VR is lowered, so S/N is improved by 27db when VR is lowered.
Another feature is that the bandwidth does not change much depending on the output.