Double WOPL with Squeeze Builds by TheWiffer

[Fishoz]

That's actually pretty funny Perry. Fear the WOPL!

 

[WOPL Sniffer]

Yeah, "FEAR The WOPL" We need T-shirts

 

[MarkWComer]

With lots of clean power you can wail a lot more than you think. Like I said I can clip a 400 on the K's, but I haven't clipped a 700 on em yet...

A question about that...

IF if is claimed that a WOPL converted PL700 reaches 1000 watts, it represents about 143% increase in power. I have an FC WOPL PL400/II- am I getting 570 watts out of this baby (285 watts/ channel)?

The LED output meters are seriously inaccurate now!

 

[Fishoz]

Mark, Lee tested mine out to 252 wpc.

 

[MarkWComer]

Mark, Lee tested mine out to 252 wpc.

Good enuff!

For the most part I don't blast the stereo- usually 20-60 watts during the evening (according to my now woefully inaccurate meters).

I have room lamps connected to the same wall outlet as the amp- and they dim in time with the bass thumps.

 

[WOPL Sniffer]

They probably were never right. The meters are just eye candy. they are fun to watch but accuracy sux.

 

[WOPL Sniffer]

Here is an engineers take on them.

http://www.prosoundweb.com/article/...ld_vu_meter_the_case_for_peak_signal_metering

 

[WOPL Sniffer]

I always liked this part.....

The first thing we must learn is that the VU meter is a dreadful liar… It is an averaging meter, and so it cannot indicate true peaks, nor can it protect us from overload.

 

[laatsch55]

A question about that...

IF if is claimed that a WOPL converted PL700 reaches 1000 watts, it represents about 143% increase in power. I have an FC WOPL PL400/II- am I getting 570 watts out of this baby (285 watts/ channel)?

The LED output meters are seriously inaccurate now!

Mark, I've tested 700's between 438 to 525 wpc into 8 ohms with both channels driven. The factory claimed 450 at clipping. My above figures were at clipping also..I doubt very seriously you could run a 700 at 500 wpc for long. But, it's still nice to have some haedroom.

 

[WOPL Sniffer]

Lee, if you don't mind me asking, what are you using for your 8 Ohm load. I need something but it needs to be robust to handle a WOPL's power. Thanks

Perry

 

[Northwinds]

500w dim bulb?

 

[WOPL Sniffer]

That could be a bitch to hook up to the speaker out terminals....

 

[oldphaser]

Lee, if you don't mind me asking, what are you using for your 8 Ohm load. I need something but it needs to be robust to handle a WOPL's power. Thanks

Perry

Perry,

I believe Lee is using an original Phase Linear factory BPI dummy load he obtained from a certain someone.

That certain someone has another available, if you are interested.

Ed

 

[WOPL Sniffer]

If you happen to hear from that certain someone, let him know I AM interested.

 

[oldphaser]

If you happen to hear from that certain someone, let him know I AM interested.

I just updated my previous post with a pdf.

 

[WOPL Sniffer]

Ouch, that's going to hurt the wallet

 

[oldphaser]

I just added (2) jpg's to my previous post

 

[WOPL Sniffer]

does performing the Load Test into a purely resistive load represent the true capacity of the amp?

 

[Northwinds]

FWIW, folks over on AK talk about using heater elements and a pail of water. Not sure if they are water heater elements or oven elements

 

[laatsch55]

does performing the Load Test into a purely resistive load represent the true capacity of the amp?

There's been a lot of discussion of that over the years. Actually sine wave testing takes the amps to places it would not normally go. That's why the service manual says you might need some 8 amp rail fuses.