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Old 26th May 2010, 05:09 PM   #11
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Quote:
Originally Posted by planet10 View Post
J2 (from what i understand an F2 with the JFET output devices)
J2 is quite different from the F2. There are a few people who
have played with the F2J (I know, this is getting confusing)
and it is a strong improvement over the F2 because the
distortion is much lower. It still has a 16 ohm output
impedance, and for that reason, a lot of people will prefer the
F3. With some of the exceptionally detailed FR drivers, I
think the F3 sits in the top rank.

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Old 26th May 2010, 05:34 PM   #12
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Default speaker cables

Hi Paul,


What gauge are your speaker cables for the SET ? I seem to have noticed a difference between 12ga and 18ga using wide range, single drivers. Bass, vocals and treble seem to more balanced and fleshed out with 18ga.
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Old 26th May 2010, 05:53 PM   #13
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Quote:
Originally Posted by Nelson Pass View Post
(I know, this is getting confusing)
F2J is a strong improvement over F2
Obviously i'm in the set of the confused

I went looking at the J part of the F2J but set it aside when i saw the ~$50 part cost (am i confused there too?). Once F2 is actually built it will be time to examinf cash-flow again.

dave
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Old 26th May 2010, 05:54 PM   #14
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Quote:
Originally Posted by vizion View Post
Bass, vocals and treble seem to more balanced and fleshed out with 18ga.
You should try even skinner. Solid & 24g from a length of Cat 5 is a cheap experiment.

dave
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Old 26th May 2010, 06:00 PM   #15
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Quote:
Originally Posted by Srajan Ebaen View Post
Personally, I'd give the nod to the J2 particularly for how it handles the treble. But as you suspect, it's a close call. I'd not think you'd give up anything in the midrange. I just had the J2 on my Rethm Saadhanas (Lowther DX-55 modified) and liked it better than my Yamamoto 300B. Sacrilege and holy cows gone to hell but there it is
Holy cow, indeed, Srajan! Looks like Nelson finally gotcha! And my guess is that as silicon carbide JFET technology evolves things will get even better sounding and better thermionically.
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Old 26th May 2010, 06:00 PM   #16
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Quote:
Originally Posted by vizion View Post
Hi Paul,
What gauge are your speaker cables for the SET ? I seem to have noticed a difference between 12ga and 18ga using wide range, single drivers. Bass, vocals and treble seem to more balanced and fleshed out with 18ga.
Lately I have been using Clear Day which is a very thin (22g?) single-core silver. Quite good stuff for cheap.
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Old 26th May 2010, 06:03 PM   #17
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Quote:
Originally Posted by planet10 View Post
You should try even skinner. Solid & 24g from a length of Cat 5 is a cheap experiment.

dave
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Old 26th May 2010, 06:03 PM   #18
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Quote:
Originally Posted by Nelson Pass View Post
J2 is quite different from the F2. There are a few people who
have played with the F2J (I know, this is getting confusing)
and it is a strong improvement over the F2 because the
distortion is much lower. It still has a 16 ohm output
impedance, and for that reason, a lot of people will prefer the
F3. With some of the exceptionally detailed FR drivers, I
think the F3 sits in the top rank.
Thank you for chiming in, sir. (Thank you also Srajan.) I am not sure if the F2(J) would work with my Tonian speakers or not - there is an xover as it has a ribbon tweeter and I don't think it's just a single-cap affair. Tony's xovers are top-secret stuff (and amazing like the rest of his speakers).

I see Reno has a demo F3 now which I am very very tempted to snag. I'm sure the power is plenty. The 10K Zin might concern me but for whatever reason the F3 seems to work just fine with tube pres with relatively high Zout. I could detect no signs of impedance mismatch at all last time I had one.

Then again it seems the J2 is probably even better.
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Old 26th May 2010, 08:42 PM   #19
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Allen is your friend ?

Yes. I was his Mac tech support person for quite a while (by email, phone & post). He came and stayed with us when he visited the last real VSAC.

dave
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Old 27th May 2010, 01:11 AM   #20
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Quote:
Originally Posted by Paul Folbrecht View Post
Thanks for the feedback, John!

I assume you are running Lowthers?

What linestage? I am thinking the F3 might be better with higher-gain linestages given its low gain. With such a linestage its single gain stage could be an advantage. OTOH the J2 might sound better with passive or low-gain line stages?
Hi Paul:

Yes. DX4's right now as I am tuning up a customers system.

Using the Pass Labs X1 line stage, so I have plenty of drive. Not sure how a passive pre would affect the sound with these, I just have not tried it.
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