[Silent One]

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Nelson Pass, a brilliant SS amp designer. Check out his patents from the 70s to the 90s.
 
http://www.stereophile.com/interviews/nelson_pass_patents/index.html
 
Perhaps he should design an hp amp.

 
 
So far my first Watt F1J is the best amp I've heard with the HE-6 as of yet.  Other than the $8.5K SimAudo amp I heard at the audio store with the HE-6.  Nelson is a great guy to deal with as well.
 
I bought the F1 from SoupRKnowva and sent  it to Nelson to convert it to the F1J.  It's been one of my best purchases thus far.

 
If I wanted to copy emulate your steps to F1J/HE-6 nirvana, what kinda dough am I looking at for the F1J?

 

[preproman]

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If I wanted to copy emulate your steps to F1J/HE-6 nirvana, what kinda dough am I looking at for the F1J?

 
I found the F1 for 1K.  Sent it to Nelson to upgrade it to the F1J for $500.  Total of $1.5K.  Pretty good in todays market.

 

[Silent One]

For great sound, the combo seems to bring BIG bang for the buck! Will lean in and look a little closer this spring.

 

[preproman]

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For great sound, the combo seems to bring BIG bang for the buck! Will lean in and look a little closer this spring.

 
 
Really looking at a pair of F4s now...

 

[Shahrose]

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Both with the HE-6 only:
 
Both are pretty forgiving.  The F1J extracts more detail and has more dynamic range.  The F1J has a bigger soundstage compared to the B22.  The treble on the F1J extends further out, the B22 will roll of sooner making the F1J appear more detailed.  The F1J appears to be the faster amp as well.  The B22 also seems more laid back.  The F1J has more weight in the bass both in the sub bass and mid bass with more punch and attack.  The B22 does a better job at this with headphones other than the HE-6. 
 
The soundstage, extended smooth treble and the bass weight the F1J provides is what separates it from all other amps I've heard with the HE-6.

 
Thanks prep, good detailed impressions. The GS-X/Dynahi have a smaller soundstage than the Beta but are definitely quicker and have more attack + better imaging. The Beta has more overall bass quantity though, with less control.
 
The F1J sounds like a keeper. Will be on the lookout for one.

 

[preproman]

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Thanks prep, good detailed impressions. The GS-X/Dynahi have a smaller soundstage than the Beta but are definitely quicker and have more attack + better imaging. The Beta has more overall bass quantity though, with less control.
 
The F1J sounds like a keeper. Will be on the lookout for one.

 
Shah,
 
I still have these Dynahi amps boards (off board heatsinks)  Trying to find someone good that will build it.  SWA won't touch it because of the off board heatsinks.  Is it still worth building the amp?

 

[Silent One]

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For great sound, the combo seems to bring BIG bang for the buck! Will lean in and look a little closer this spring.

 
 
Really looking at a pair of F4s now...

 
Yes, let's party around the Mono block again! 

 

[Happy Camper]

Give em ell boys.

 

[wotts]

I'm running my HE-6 from with the Mjolnir or a Pass Labs Aleph 3 currently. I picked up a second Aleph 3 last week for speaker duty, but I've been thinking about how to go about using boht for the HE-6.

 

[Armaegis]

Run with a balanced source and use each amp to power your L and R separately?

 

[wotts]

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Run with a balanced source and use each amp to power your L and R separately?

 
 
My DAC can also do pre-amp and is balanced out. I figure I can solder a splitter and feed the channels that way. Hmmm...

 

[elwappo99]

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****** my right driver has died. I will send to head direct for a replacement. Fortunately they offer a remplacement even the headphone is not under warranty but you have pay.

 
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I am awaiting an exchange pair myself. Chinese New Year and all I hope it's not too long. I've sent payment and the headphones and am waiting a response.

 
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How much do you have to pay?

X2 interested in knowing this as well...

 

[Armaegis]

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My DAC can also do pre-amp and is balanced out. I figure I can solder a splitter and feed the channels that way. Hmmm...

So... left XLR to RCA feeding amp #1, repeat for amp #2... 

 

[Shahrose]

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Shah,
 
I still have these Dynahi amps boards (on board heatsinks)  Trying to find someone good that will build it.  SWA won't touch it because of the on board heatsinks.  Is it still worth building the amp?

 
Hmm, that's a good question. You might already have an ideal amp for the HE6 in the F1J from what you've described. Plus, the GS-X is similar enough to the Dynahi in terms of SQ that it might not be worth it unless you're looking for more power over the GS-X.

 

[Solude]

on=off in this case  SWA won't do offboard heatsinking.