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Old 4th September 2005, 02:08 AM   #1
MikeW is offline MikeW  United States
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Default PLH vs ???

Now that you have been listening to the PLH for a couple of weeks, how does it compare to some of the other Pass and First Watt amps? Did you send the twins back to school? Did you try it with the 515 Watt MOSFETs?
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Old 6th September 2005, 10:14 PM   #2
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I'm finishing up the piece, and will be posting it this week.

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Old 10th September 2005, 10:09 AM   #3
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Not that many days left in "this week"!

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Old 11th September 2005, 02:49 AM   #4
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From where I sit, it's done with 5 hours to spare.

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Old 22nd September 2005, 03:42 AM   #5
MikeW is offline MikeW  United States
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Default Jlh. Plh ?

I got back one of my JLH amps back from the loaner department. I started to do some listening tests comparing it to the PLH. Do they sound the same? Not really. Both sound good, but different. There will be more to add in a week or so after I crank that pot to some more positions.

PLH has 37 volt rail with 68000 uf.,.15ohm, 68000 uf. Bias @ 1.8 amps.
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Old 29th September 2005, 01:48 AM   #6
MikeW is offline MikeW  United States
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I lisrened to the JLH for an hour or so tonight while putting on the front panel and top of the PLH. It is a very good sounding amp. Good highs and lows and good balance in between.
The difference between the JLh and PLH is the midrange. As the current gain is turned down the PLH midrange gets better. Then you get to a point when the highs and lows drop down. For Mr. Pass this is at the 9 O'clock position. For me it is anywhere between the 6 and 10 O'clock position depending on what I am listening to. Ten for Disturbed (Down with the sickness), Jam are you going to send that disc back soon? Six for Goldfrapp (Are you human).
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Old 29th September 2005, 02:02 AM   #7
jam is offline jam  United States
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Mike,

You just have too much time on your hands......................
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Old 29th September 2005, 12:33 PM   #8
MikeW is offline MikeW  United States
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Default New schematic

Jam, when are you going to send me a schematic of that new amp so I can post it?
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Old 29th September 2005, 09:38 PM   #9
jam is offline jam  United States
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Mike,

I am still working on the bugs on that amp. .............how about a Mosfet A40 v2............that is if that is ok with Mr.Pass?

Jam
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Old 30th September 2005, 03:53 AM   #10
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I'm starting to work on the A40 mosfet, but you know me....I'm thinking more output fets and higher rails.
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