Dennis Had Inspire amps and preamps.


Recently acquired a lightly used LP27a and a SEP Firebottle HO amp after a recent dip into SET/SEP-dom.  I liked them enough to order a new LP3a preamp from the "auction site."  Hand-made in USA by an arguable hifi "legend" at, imo, comparably reasonable prices.

These pop up from time to time in various A-gon discussions.  I know there is an unwieldy and lengthy discussion on another site, but thought would try to open up a fresh one, here.

Curious about (good or bad) experiences, listening impressions, tube-rolling, mods/upgrades, speaker/gear pairings/synergies, etc.

Right now, I have the Firebottle with Omega 3 HOs, and am enjoying the result.  One immediate question would be what tubes can be used in the Firebottle and in the output tube in the LP27a.  I bought them used.  I have an inquiry to Mr. Had on that, but maybe others have first hand experience on what works well?  For example, the LP27a came with a 6sn7, but I've read that others have been able to use 6sl7 and even 6bx7 in that spot.

Thank you.

stfoth
Wolf--can you describe what your Amperex looks like?  I did an "auction site" search, and there were a couple different ones....one claimed to have been made by GE, another labeled "made in Holland," and at least one other that I think looks like maybe a Russian re-badge.  Price on a couple--whew.

The Schiit Freya is fun, indeed.  I'm mostly running it in passive in my office with all balanced connections.  Not sure it makes a difference, but that's where the computers are, router, rat's nest computer cabling, etc.  Thought it could potentially help with noise.  I still haven't made friends with the JFET stage.  I don't think the tube stage sounds  as good as the LP27a or my other tube pres, but it's "fun" to be able to switch from a passive to add some extra tube-flavor at the push of a button.  With the stock tubes, it was pretty sterile and didn't add a whole lot.  To be fair, I probably didn't give them sufficient time to burn in.  I've tried maybe half a dozen or so combinations--didn't like it with Sylvanias (VT-231, GT, or GTB) or Raytheons.  Very much prefer it with GEs, RCAs, and/or KenRad.  I didn't try 6sn7w or TS BGRP...I refuse to put tubes in that cost nearly as much as the Freya (or more), especially when the tubes keep burning in passive or JFET mode.  I don't find it to be as sensitive to tubes as some others, though.  One note--the remote doesn't do on/off, and the switch is on the back of the Freya, if that matters.  If you don't need the balanced and aren't interested in the passive or JFET push-button tweakability, still easy enough to try and I think good for the money, but probably could do better on a tubed pre for not a ton more dough.
John: How do you like your SLP98?

I’ve moved on from the Cary SLP98. I switched speakers a few years back, and my current speakers love more resolution. I am now using an ARC Ref 5 preamp.
It was probably around 4 years ago when I was trying out Mr Had’s amps. It is quite possible that he has made some changes that make the current models more to the liking of wolfy and others.

I would not bother trying another one myself, as the sound I heard wasn’t even close to satisfactory.
I should never say never though, perhaps if I get a pair of very sensitive speakers, 98 dB or above, I may give them another go.
However, with speakers that efficient, I’d be more tempted to try an SET amp rather than a SEP amp.

BTW, I do recall Dennis recommending different rectifier tubes when using different power tubes. He had me using a different rectifier tube when using KT88's or KT77's than when using 6V6's etc.
That ARC preamp is nice.  Too rich for me, especially while I'm in this--I wanna try different stuff--phase.

I did see a new 2a3 Inspire on the auction site a week or two ago....
Wolf Garcia,

I don't think you would be at all happy with the Hersey as a full range speaker. It does not have any ump down low, a bit honky and not very refined up top. 

I've been all over them, actually having a series 1.5. I modded the heck out of. I was able to improve on their sound but in the end it reinforced the old saying about not being able to polish a turd.

Well, they are not turds but they did not ultimately satisfy, so off they went to someone else who appreciated my hard work.

Funny that most people always comment on how loud they play with little watts, as I found that I liked them best late at night at low volumes.

For the record I tried them with various tube and solid state amps to no avail. My pair was very pretty by the time I finished with them, though.
The Had SEP  amplifier mated to the Silverline Prelude could turn out to be a result of excellent synergy that may not be that easy to exceed within a certain price range .
Charles