Vp|Vrms|W8R|W4R
58 41.0 210 420
56 39.6 196 392
54 38.2 182 364
52 36.8 169 338
50 35.4 156 312
48 33.9 144 288
46 32.5 132 264
44 31.1 121 242
42 29.7 110 220
40 28.3 100 200
38 26.9 _90 180
36 25.5 _81 162
34 24.0 _72 144
32 22.6 _64 128
30 21.2 _56 112
28 19.8 _49 _98
26 18.4 _42 _84
24 17.0 _36 _72
The output of these types of amplifiers should be within a volt or so of the output section supply under maximum load.
With a regulated +/-58V supply you would probably get 200W (8R)
But if it is a transformer / rectifier / filter cap 58V supply, if it drops to 50V under load (between filter capacitor charging from rectifiers / transformer) then I would rate it at about 150W because this is where you would enter in to clipping and therefore more significant distortion.
IMHO
Hope that helps.
58 41.0 210 420
56 39.6 196 392
54 38.2 182 364
52 36.8 169 338
50 35.4 156 312
48 33.9 144 288
46 32.5 132 264
44 31.1 121 242
42 29.7 110 220
40 28.3 100 200
38 26.9 _90 180
36 25.5 _81 162
34 24.0 _72 144
32 22.6 _64 128
30 21.2 _56 112
28 19.8 _49 _98
26 18.4 _42 _84
24 17.0 _36 _72
The output of these types of amplifiers should be within a volt or so of the output section supply under maximum load.
With a regulated +/-58V supply you would probably get 200W (8R)
But if it is a transformer / rectifier / filter cap 58V supply, if it drops to 50V under load (between filter capacitor charging from rectifiers / transformer) then I would rate it at about 150W because this is where you would enter in to clipping and therefore more significant distortion.
IMHO
Hope that helps.
Last edited:
The first scheme this Accuphase block - a scheme
second too them
View attachment p-266en.zip
View attachment p-300ven.zip
View attachment p-300x.zip
View attachment p-4100.zip
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