Nick Danger's WOPL 400 Series II Build

[Nick Danger]

It's about time.​

So what started here has now grown into this thread. She, as- yet- unnamed, is going to get all the White Oak goodies available installed by the capable hands of Jer and I look forward to watching the build progress. Thanks to all involved!

(pics courtesy of Jer)

Looks really good cosmetically from the pics and love getting the original box.

 

[Fishoz]

Alright Doug!!!

I think you should do a name poll/pool.

 

[Nick Danger]

Alright Doug!!!

I think you should do a name poll/pool.

I have a couple of names in mind for her, Dave. Hate to pick one that is already in use! Maybe we should start a thread that lists the name(s) of their WOPL'ed gear. Whaddaya think?

 

[Fishoz]

With all the wonderful things said about their Wopl's I feel like I know some of them - would be nice to put an endearing name to them all!

 

[NavLinear]

WHAT!!!!! No revealing photos yet? I'll fix that. Maybe a name will pop out for your new amp.

 

[Northwinds]

Man, I am happy for ya Brother!!!

 

[jbeckva]

WHAT!!!!! No revealing photos yet? I'll fix that. Maybe a name will pop out for your new amp.

BOOBERS!! Yeah yeah.. that's IT! That's the Name!! lol

 

[Nick Danger]

Don't think the GF would like me asking her to turn on " Dr. Juggsie McJigglesworth".

 

[jbeckva]

OK dagnabit!!! Back to it..

First we are taking a few measurements.. let's see what the after says when it's all said n done..

 

[jbeckva]

241 watts no clipping, both driven with 8 ohms. Dummy loads got toasty..

 

[laatsch55]

Just for the sake of consistency Jer, my max-outs are quoted with 1% THD & N....

 

[jbeckva]

THD @ 5 volts RMS output, both channels

.08 - 20K
.11 - 15K
.14 - 10K
.13 - 5K
.052 - 1K
.032 - 500
.012 - 100
.011 - 40
.011 - 20

LVL

20-22K +/- 1db
-3db down at 28Khz

Not too bad.. welp, guess time to get the boards going here..

 

[jbeckva]

Just for the sake of consistency Jer, my max-outs are quoted with 1% THD & N....

Pushing around 217 then...

 

[jbeckva]

Gotta get an egg to cook on them loads.. hehe.

 

[laatsch55]

Whats your rail voltage??

 

[jbeckva]

Whats your rail voltage??

Haven't opened it up yet. Letting stuff cool down.. put some whupin on it.

 

[laatsch55]

Heatsinks hot??

 

[NavLinear]

OK dagnabit!!! Back to it..

First we are taking a few measurements.. let's see what the after says when it's all said n done..

View attachment 16354

Nice analyzer - the HP 8903's are fun to use. I'll go out on a limb here and guess it's a new acquisition. Next up is a X-Y recorder.

 

[jbeckva]

Put a lot of bugs on the driver board tonight. Next it will be time to open er up and see what's inside..

 

[jbeckva]

And just because they say Phase Linear on the back, doesn't mean they gotta GO. MJ 95's and 96's, coming up..