2. amps-preamps
  3. 1066685776

New preamp or other suggestions?

I'm really getting tired of the harsh sound of my system. At this point, I honestly would rather listen to music in my car than in my listening room. I've always chalked it up to a poor room layout (and that's not something that I can change), because this same system sounded UNBELIEVABLE in the dealer's showroom. For what it's worth, I've already treated the room with Echobusters panels, which helped quite a bit, but not enough to make the system sound really enjoyable.

Recently an audiophile friend suggested that a good tube pre might make the system more listenable. The current system is:

Source 1: CAL Icon MKII HDCD w/PowerBoss power supply
Source 2: Music Hall Fidelity CD-25 (stock)
Pre - Bryston BP-20 line stage (balanced to pwr amp)
Power - Bryston 4BST
Speakers - Thiel 3.6
Interconnect (pre to pwr, bal)-AQ Lapis or Nordost Red Dawn
Interconnect (CD to pre) - AQ Lapis, unbalanced
Spkr Cable - AQ Midnite X3

The system on the whole is currently lacking mid-bass (the terrible room strikes again) and has a harsh, in-your-face high end. Of the two sources, the CAL has a MUCH better bottom end, but is lacking detail and air at the top, and has a very "forward" presentation. The CD-25 has a much more detailed (and enjoyable) top and a wider soundstage, but light bass.

I listen mostly to pop, acoustic jazz and contemporary electric jazz.

My friend suggested picking up a used AR or CJ tube pre in place of the Bryston. Another friend suggested replacing the op-amps in the CD-25 with 627's to enhance its bottom end.

I'm a musician and not an audiophle, so I don't know if the advice I've received will fix the problem.... I'm also on a budget, but could swing $1-1.5K on a new/used pre if that would fix my problem.

Do any of you experts (and I mean that sincerely) have any ideas?
hoosierdaddyonline
stevecham
3,298 posts
 
Have you explored whether the problem could be with the quality of your AC? I would highly suggest you put a PS Audio P300 or other PS model to power only your front end components (sources and pre). This completely regenerates the AC wave form from DC and removes all noise and hash. I have a Krell/Thiel set up and a P300 really helped sweeten everything. Plus the added 3D is a bonus. No harshness whatsoever now.
rlxl
92 posts
 
I agree w/sogood, gmood, and kkursula. The Thiels may not be a good fit for your room and system. Go back to your dealer and descibe the problem with him/her and see what is suggested. It would be very easy for your dealer to lend you another set of speakers and/or electronics and/or cabling, etc., and let you experiment. This, it would seem to me, would be a service your dealer would gladly provide.
sean
6,229 posts
 
Stevecham: That's a good point. I had forgotten that the person that contacted me had also taken steps to improve their AC just previous to installing the Goertz. Judging by the comments, i think that they were more impressed with the Goertz than the dedicated AC system. I'm sure that they both helped, but maybe not in equal measure. Sean
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petscan
4 posts
 
Having recently returned to our hobby after a 20-year hiatus, I've taken to reading Stereophile, TAS, etc. One thing that has amazed (and dismayed) me is the quality control problem in the (high end) industry. How many times have we read reviews that went: "It stunk until I sent it back... got a new unit... wow, what a difference..."? Or similarly-minded manufacturer responses to less-than-doting reviews ("...as soon as we got the unit back to the factory we examined it and found a bad {part-of-the-day}...")?

Is it possible that you could have a bad component? When you said that "this same system sounded UNBELIEVABLE in the dealer's showroom," do you mean that THEIR demo units sounded great, or did you actually shlep your own equipment to the store for a listen? If the former, and if you trust the dealer's integrity and skills, then you might want to have one of their staff come to your home for a critical demo.

Good luck

Doug
hoosierdaddyonline OP
3 posts
 
That's a great point, and having an electronics background, it was the first thing that I considered.

I actually did both of your suggestions - I had the salesguy come to the house, and his reaction was "Wow! That sounds awful!...there's definitely some weird bass anomaly going on here." (At least he was honest about it.)

We then lugged the whole system back to his store and set it up in his much larger and more symmetrical listening room, and it sounded fine. So I think we could safely eliminate hardware failure from the list of causes.

I don't think any individual component in my system is at fault here; I'm pretty convinced that the hardware system (in total)is just a bad match for my particular room. With that as a given, the question becomes one of practicality - how do I achieve a more listenable system in my environment at minimum additional cost?

For the folks who suggested replacing the speakers, my only comment is that I picked the Thiels because they were the only speakers that I heard in my price range that reproduced music the way I heard it live. I listened to Vandersteens, Maggies, Paradigms and a couple of others, but in my opinion, none of them came close to being able to reproduce the nuances of a guitar tone to the degree that the Thiels did.

If I can retain my system's ability to resolve that level of detail, but push it "back" in the presentation and balance it with a stronger midbass, I'd have it made.

Thanks again to all who responded!!
joe
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