Sutt's "Fugly One" WOPL Transformation

ksrigg

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Jul 28, 2011
Messages
1,417
Location
Wise, Virginia
Watts she gonna do? Jerr should be posting some results sometime...

I also located some knobs on eBay.....38mm diameter.......and 22mm depth. Set screw for 6mm shaft...does this sound like it will work??
 

ksrigg

Chief Journeyman
Joined
Jul 28, 2011
Messages
1,417
Location
Wise, Virginia
Turn off the breaker to the listening room.........at least for a few, and then turn on the power to run some tests....or you can just send her to me.. I NEED her!!!!! BAD!!!!

I wanna hear her!!!!
 

jbeckva

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Powhatan, Virginia, United States
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Errm... Ey Vatos!!!!
FR db measurements. 6 volt output dialed in..

Left is frequency, right is dB. Not too shabby...

0 0.01
1000 0
2000 0
3000 0
4000 -0.01
5000 -0.01
6000 -0.02
7000 -0.02
8000 -0.03
9000 -0.04
10000 -0.05
11000 -0.06
12000 -0.08
13000 -0.09
14000 -0.11
15000 -0.12
16000 -0.15
17000 -0.17
18000 -0.18
19000 -0.21
20000 -0.24
21000 -0.26
22000 -0.29
23000 -0.32
24000 -0.35
25000 -0.38
26000 -0.42
27000 -0.45
28000 -0.49
29000 -0.54
30000 -0.57
 

oldphaser

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Joined
Sep 8, 2012
Messages
682
Phase Linear as well as a lot of other manufacturer's measured the "frequency response" of their power amplifiers at 1W. So 1W into an 8 ohm load would be 2.83V output. (NOTE: An input voltage of around 78-81mV should get you there.) Phase Linear's frequency response spec was +0/-1dB at 1W. A White Oak Audio Rev E board with back-plane boards should go down to 4 or 5Hz easily and top out at around 42kHz +0/-1dB. The Phase Linear distortion spec is from 20Hz to 20kHz at rated output. A 700 series 2 amp rated at 360 watts a channel into a 8 ohm load would be 53.66V. The distortion spec will look pretty good at 1kHz. You should be checking the amp at 20kHz both channels driven to rated output. Then let us know what you get. Worst case scenario for most amplifiers will be at 20kHz. The spec for a series 1 700/700B is +/-.25%. The spec for a Phase Linear 700 series II amp is +/-.09%. NOTE: Phase Linear's 700/700B and 700 series II service manuals also allowed for the use of a 80kHz filter on the distortion analyzer.
 
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