tube preamp the impossible

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rockadanny

Re: tube preamp the impossible
« Reply #20 on: 16 Jul 2013, 03:23 pm »
Quote
i heard from one of the owner that even with tube roll, he finds the mapletree 2a to be in lean and analytical

First time I've ever heard that type of complaint. I suspect some other issue(s) involved there.

When I used mine with an SS amp (hybrid actually, MOSFET outputs), I used a pair of NOS Sylvania 6SN7GTA (from late 1940's I believe, $85). Added some drive and nice tube flavor to the mix. Also replaced stock rectifier tube with a NOS Raytheon JAN-CRP 6X5WGT. Far from lean/analytical.

When I switched to all-tube power amps, I swapped the Sylvanias out - too much tubiness - and inserted a pair os NOS TungSol 12SN7 gray T-plates ($35) for a cleaner, clearer presentation. But still not lean/analytical by any means.

I would not let one (of so many - check archives) opinion dissuade its consideration.

Good luck with your search!

ricardojoa

  • Full Member
  • Posts: 721
Re: tube preamp the impossible
« Reply #21 on: 16 Jul 2013, 10:04 pm »
Not sure about the review. Maybe the owner had some lean speakers to begin with?

Anyway, i really think this have been a great post. Many great advice and suggestion. Although some of the brands i already searched, im happy to know that space tech labs makes a variety of audio equipment in a very beautiful way. Gotta check them out.

JakeJ

Re: tube preamp the impossible
« Reply #22 on: 17 Jul 2013, 07:43 am »
Cool, that's what is great about this forum, lots of good advice from some straight shooters.  Keep us posted as to what you hear and ultimately decide to buy.

Kim S.

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  • Posts: 188
Re: tube preamp the impossible
« Reply #23 on: 17 Jul 2013, 09:14 am »
I had a ASL preamp (DT-2006?) which would be in your price range used.  It was very good and had lots of exposed tubes.  Also Upscale Audio a few months back was selling "open box" w/warranty primaluma preamps a very close to your price range.