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I would think not!!

A few selection so far, some newer Richard Thompson, early Chris Issak, Mike Oldfield Tubular Bells, This one really sold me on the WOPL upgrade.

I The good news with my speakers I don't have trouble looking for any hidden woofers

OK, been listening for a couple hours now.... OH MY FUCKING GOD!!!!!! Have not heard this much sound coming out of speakers in a long long time. 400 is just starting to warm up now, might be time to turn on the fan. Just for the record Joe Bonamassa's Blues or Desperation was the first disc...

It is a nice clean install, the knobs look like a factor install and the insides,a real tidy job. Latter today it will go into service. The hard part is deciding what albums to spin to shake the logs on the house. I have 3 plus feet of snow and a few drifts bigger on the metal roof, time to...

Thanks for the info FredR . I have a pair of Infinity Monitor llA from 1975 I will drive with it and the amp will see some close to 2 ohm loads so the amp will be put to good use. I see 10 amp and 8 amp fuses in it so I assume the hard driving of the amp required those. I am going to rebuild...

Thanks for the advice on the DBTester. I have one I use all the time for new guitar amp builds and restoring old guitar amps. I powered up the WOPL400 the first couple times with it. Amp responded well on power up no shorts, good Cap response. going out the door to start my drive to Twin...

Just got done checking out the inside of the new purchase, the difference on the inside compared to the guts on the original is shocking, getting wound up pretty good looking forward to stripping and WO my old amp. One meter loose in shipping, main caps came loose of the hot glue that was used...

I love this stuff thanks for the great answers, all of you

WOPL Sniffer are they thinking it is working almost like a tone control circuit where you are rolling of highs depending on cap and resister size or adding some inductance into the circuit and getting phase shifting? I do believe you are right that it would be hard to detect.

Our we talking phase shift because of putting pot (resistance in line with signal) just trying to understand this a little more, that is why I was hoping Oldphaser would also find time to fill the details.

As far as the keeper other half I made sure I got her addicted to the good sound of of well reproduced music and it is amazing to watch her clean the house with the tunes cranked up. The house hasn't been as clean lately since I put her on music restriction after realizing how bad things for...

Saturday night is suppose to be the really cold one, my wife and I will be driving back from St Paul after going to a concert by the Steel Drivers at the Fitzgerald Theater. 230 miles of -10 to probably -20 by 3:00 AM or so when we pull into the drive way. Our 40th wedding anniversary. The...

Oldphaser keep the info coming Thanks

We know that a PL400 is like a Ford truck is to a Chevy truck fan or vise versa, to the WOPL700 sniffer

Thank you for the quick reply's, only if Fedex was faster...... , The amp came like this with the control knobs? Looking forward to hearing a WOPL. Geegz you won your bet, FredR is in fact the builder.

so on my old PL400 my pre volume controlled the over all volume so if I understand right I should set the dials all the way CW to run it and use the pre volume to control output volume.

It was only up a few hours, It was priced at $600, I have already put together my cost sheet for my own amp so I knew this was a good price for a stand in amp for my own while I WO it, and when mine is done this one will power a set of Magneplanars in the shop out in the garage. Parts alone...

I will need advice on proper adjustment of those as well for my original one did not have them. Now wondering more about information on this amp

Bought this to use while I do a full WOPL on my own PL400. Any one recognize their work by chance. Just wondering about age of rebuild and any other info on it. The owner lives in Las Cruses NM. He had it about a year now. He is trying to get more info on who did the work. Any Ideas any body