Lexicon LX-7 vs Bryston 9B/4B SST

Rod#S · 12-06-2003, 12:01 PM

I was hoping I could get some opinions on two amplifier alternatives.

My choices are the Lexicon LX-7 or a Bryston 9B SST/4B SST combination. The processor I'll be using will be the Lexicon MC-12B.

I had been looking at getting the new Anthem Statement D1 processor coupled with the Bryston 6B SST/4B SST x 2 (for 7 channels) for about the past year but I just got tired of waiting for the D1 to come out and Bryston has raised their prices a fair bit as of mid November so a different decision has to be made.

When I abandoned the thought of the D1 I decided on the Lexicon MC-12B with either a cheaper version of the Bryston combination (9B SST/4B SST) or the LX-7. The Brystons are still more expensive, by about $3000 so I'm dealing with a tough decision here.

Do I take the costly road and get the Brystons with their 20 year warranty and their consistent exceptional reviews or do I go with the Lexicon and ultimately not miss out on a lot if anything. I will not have the opportunity to listen to the LX-7 and for the Brystons, I have only heard the 4B SST of which I thought was a great amp.

In case anyone is wondering I'm using Paradigm Reference Studio Series speakers, all version 2 and they include:
Studio 100s
Studio CC
Studio ADPs
Studio 60s
Servo 15

Thanks,

Rod

MikeTz · 12-06-2003, 07:27 PM

Your Paradigm speakers have a nominal impedance of 8 ohms and a sensitivity of around 91dB SPL (@1 watt/1 meter). Unless you have a big room the Bryston should provide plenty of power. I have a Bryston 9B-SST and 3B-SST in a 20 x 20 room with a 10ft ceiling and speakers that are less efficient than yours, and my system can get loud without clipping.

The Bryston amp will sound better than the Lexicon (which I believe is a Crown design in disguise). Bryston amps are built like tanks, have excellent bass control, sound great, and carry a 20 year warranty. Their customer service is also excellent (e-mails are frequently answered by their CEO).

There are other amps in this price class that have more power and sound very nice. The Cary Cinema 5 and Cinema 2 come to mind. Also the Krell Showcase has 7 channels at 125W/ch and doubles power into 4 ohms. The Parasound Halo A51 and A21 would give you 7 channels at 250w/ch and would also sound very good.

Cheaper models like Rotel can provide 7 channels at 200w/ch for half the price ($3000). Outlaw, Adcom, Primare, and others also provide good value.

Or you could sink your money into battleships like the Krell Amplifier Standard, Theta Dreadnaught, Plinius Odeon, BAT VK-6200, or a host of others.

I bought the Brystons because they sound great, are backed by excellent customer service, and have that 20 year warranty. I've heard the new Lexicon LX-7 and didn't think it sounded as good as their older models. Makes sense, since the older models were made by Bryston for Lexicon.

Now you have many more possibilities to make your shopping life interesting. Happy hunting.

MT

Yogi · 12-06-2003, 07:57 PM

Lexicon abandoned Bryston as the OEM (earlier amps were Brystons with a Lex badge) for its amps and went with Crown. I wonder why? Was it price/performance/sound?

BobRoulier · 12-06-2003, 08:53 PM

I visited a lex dealer recently and was talking with one of the sales guys (who coincidentally owns a Bryston amp) he said that lex ended up with crown because byrston refused to sacrifice quality and expand their amps or products to 7 channels

but who knows there could have been other factors involved like $$$$ or development costs.

Bob

MikeTz · 12-07-2003, 08:27 AM

Yogi:

Bryston says that Lexicon made the switch to Crown because they wanted an amp that was 7 channels and more powerful. The 9B-SST that is so successful at Bryston is conservatively rated at 125w/ch into 8 ohms with 5 channels driven. The new Lexicon is rated at 200w/ch into 8 ohms and, who knows, into 4 ohms with 7 channels driven. Bryston wasn't willing to develop a more powerful 7 channel amp on its own nickel and Lexicon wouldn't pay, so Lexicon is using an adaptation of an existing Crown amp.

The old Lexicon sounds better to me than the new one for roughly the same price. If you like the new one, or the sound of Crown amps in general, buy one and be happy. We all have unique subjective tastes when it comes to sonic judgement and what's good for Jim may not be good for Bob.

MT

**HTF Ads**

Yogi · 12-07-2003, 04:31 PM

I have never listened to the older Lex amps. Bryston amps I have listned to and they are very refined albiet forward for my tastes. I however listened to the new Lex (Crown) amp and didn't like the sound a bit. It was hooked to M&K THX speakers (also forward for my tastes) and the dealer played vertical limit (avalanche scene) at reference level and I felt like running out the room with my ears covered. Thats when the dealer told me about Lex going with Crown and he and I thought it must have been a $$$ based decision.

If you can get the Bryston I would prefer that over the new Lex.

Kevin C Brown · 12-07-2003, 05:08 PM

This is interesting in that I have been thinking about the following:

1) 4b-st plus ATI AT2005 or Sherbourn 5/5210 (or Rotel or B&K)
2) 3b-sst plus the 9b-sst

I just got a 4b-st Fri.

My problem with the 4b-sst plus the 9b-sst is "balance". I know all about size of the room, speaker efficiency, and listerning levels, but 300W/ch for the mains and 120 W (150W really) everywhere else just doesn't seem "balanced". (Psychologically for power levels, not final volume.) I also have this thing about wanting 200W/ch. No reason.

But Mike, I would be more interested in your experience with the 3b-sst and 9b-sst...

MikeTz · 12-07-2003, 09:40 PM

Kevin:

I use the 9B-SST and 3B-SST combination in a 20x20 room with a 10ft ceiling. I can get very loud volume with no clipping and I use Vandersteen speakers (about 89dB SPL/w/m - moderate efficiency) all around. If you are using this amp combination in a similar room with moderate or high efficiency speakers you should have no issues with power. One other caution, my front speakers are used with an integrated Vandersteen powered subwoofer so the power requirements to the front in my system are less than normal.

Both my 9B and 3B rated over 150w/ch at 8 ohms and over 250w/ch at 4 ohms. It is typical of Bryston to conservatively rate their amps.

The amps are connected to a Krell HTS 7.1 and they sound great! The 20 year warranty aint bad either.

For your system the 9B and 3B combination might be better "balanced" than a 4B and an ATI. The gain of the two Bryston amps is identical and I'm not sure this is true of the Bryston/ATI pair. When the gain is not identical sometimes the theater effects (especially panning from side to side) sound strange even after proper calibration.

MT

Kevin C Brown · 12-08-2003, 08:00 PM

Mike- Thanks. Yeah, I'm thinking about "balanced" in terms of W/ch. I have Mirages all around which are a little bit more efficient than the Vandersteen's (I thought the Vandersteen's were more like 86 dB?).

I asked Bryston about the input sensitivity differences, and they *said* that it shouldn't be an issue. (Bryston around 1.1V, ATI around 1.4V, but then again, the Sherbourn is about 1.1V too.) I don't understand this parameter 100%, but the issue is that after cal, the levels might not be matched at volume settings much lower or higher than the cal setting, right?

They also say that 150W/ch is a more realistic number for the 9b-sst too!