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Old 29th August 2007, 09:49 AM   #1
OzMikeH is offline OzMikeH  Australia
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Default Amplifier Survey: Fostex 206 or 207 users

1: What amplifier do you use?
2: What does it do better than other amps you have tried?
3: How loud do you usually listen and how hard is your amp working at that level?
4: Does any particular sort of music work very well with your equipment?
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Old 29th August 2007, 12:24 PM   #2
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Default Re: Amplifier Survey: Fostex 206 or 207 users

Quote:
Originally posted by OzMikeH
First of all, the 206 and 207 are not comparable. Totally different drivers that sound totally different. Besides that, the 206 does not lend itself to the type of speakers I build. Therfore, my response applies to the 207 only.

Quote:
1: What amplifier do you use?
1. Yamaha HTR 5240. This is my HT receiver that I use for HT (really?!) and casual listening, which is 90% of the time. Good, clean amp with lots of power for dynamics, given 92-94dB/w/m speakers.

2. SI Super T-amp. This is my favorite with both the 207 and Lowther DX2/DX3. All of the things that T-amps do well. The strong (honest?) top end fits well with the 207 and is best went the speakers are toed in 10-15 degrees. This is not the amp to use with screechy drivers like the 206!

3. Custom built (Jef Larson -- Abraxas Audio) 6BX7 p-p. This is my demo amp. I take it to shows, etc. It seems that audiophiles expect and demand tube amps, so I have one. I had Jef make this amp sound as close to SS as possible and he did. Sounds very much like the Yamaha. A bit cleaner and a bit softer at the top. Drives the 207's very well.

Quote:
2: What does it do better than other amps you have tried?
Answered

Quote:
3: How loud do you usually listen and how hard is your amp working at that level?
Normal listening level is ~75-80dB for music, a bit higher for HT. Demos are usually somewhat louder 85-90dB, but I can't stand this level for long. The amps are loafing along at under 1 watt. With speakers of over 90dB/w/m, power is hardly an issue.

Quote:
4: Does any particular sort of music work very well with your equipment?
Solo voice, small group jazz, classical with orchestras under 50 pieces.

Bob
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Old 29th August 2007, 01:48 PM   #3
OzMikeH is offline OzMikeH  Australia
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Thanks Bob, I stated those 2 drivers as a couple of mid-low priced 8 inch fullrange drivers.
I appreciate your time, your answers are exactly the sort if info I was looking for to help me chose a (mid-low priced) amplifier project to run some FE207E.
My 207 sound awful on my Harman Kardon AV receiver compared to a borrowed tube amp.

Perhaps this will spark some discussion on amp/speaker combinations.
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Old 29th August 2007, 01:53 PM   #4
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1. Yamaha RX-396 and Yamaha RX-V450with my 206 Bruces ( RX-396 is going for my oncoming tapped horn )

2. I'm all Yamaha guy so... Yamahas tends to sound bright, I have to reduce treble level with 206. Nice "live" sound.

3. Casual listening around +70dB, enjoying demos and movies a bit louder. I live in an aparment house so not to irritate neighbours I have to keep volume levels down ... except sometimes ; )

4. Acoustic, live material. For studio material I prefer Sennheiser 595 straight from my pc.


--
Tuomas
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Old 29th August 2007, 03:09 PM   #5
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Fostex 165k, 168S, 127e, all sound wonderful on tube power (EL34 tubes, 30 watts). They also sound wonderful but a little different with Sonic Impact (stock $30 model).

Tubes sound rounder and fuller with more front-to-back depth. Edges are slightly blurred. The entire presentation is relaxed.

SI sounds less full (must try the Super T) and crisper. Edges are sharp without blur. Slightly congested compared to tubes but only when playing loud. Soundstage is flatter than tubes. To me, the most immediate and apparent difference is how the depth of the soundstage becomes flatter. Otherwise, they are both enjoyable to listen to critically or for pleasure. Bass limitations are apparent with larger speakers with greater bass capabilities.

I have a Yamaha receiver that I use only with my Tangband drivers for HT. It sounds great but overall, Fostex with tubes or SI sounds more alive.
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Old 29th August 2007, 04:41 PM   #6
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Quote:
Originally posted by Godzilla
[ (must try the Super T)
Indeed you must. The bottom end is much better. And by all means, run it off of a battery. I use a small SLA battery, and it really does make a difference. The sound is cleaner overall.

Bob
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Old 29th August 2007, 04:51 PM   #7
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Ah, but Bob, have you tried it with the latest $50,000 per metre power lead, which will naturally compensate for all the mains crud & standard quality copper between the sub-station & the sockets in your home?
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Old 29th August 2007, 05:06 PM   #8
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Honestly, i have a pair of Audio Quest Crystal cables connected from my tube amp to my BIBs and the sound is more relaxed than with 16 guage Radio Shack wire i typically use. Perhaps it's rolling off the highs.

The BIB is wired internally with Cat5.
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Old 29th August 2007, 07:52 PM   #9
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I'm with you godzilla!
I have blind tested with an expensive cabel and my Naim NACA5.
The difference was so remarcable that I would have coughed up the dough if I had it at the time. Depth, clarity and soundstage were outstanding compaired to NACA5.
There are maybe some brands which are outrageously priced but exceptions exists where one has value for the money.

Cheers!
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Old 30th August 2007, 01:06 AM   #10
OzMikeH is offline OzMikeH  Australia
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Thanks for your input people.
So far what's looking good for my budget is a Trends TA 10 with a few mods and a battery supply in the voids in each speaker. Using only one channel from each should assist the bass if the power supply is the limitation.

Why is solid cat5 preferred over stranded? I've tested both as network cables and they both perform well enough at 100 megabits.
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