Thiel Owners

andy2
when you read this query- chime in for papasmove.
Happy Listening!

@tomthiel I will have the following audio system on Saturday with an almost pure Benchmark setup.

Thiel CS3.7 | DAC3B | HPA4 preamp | single AHB2 amp | 2 tuners | SACD | 15 foot StarQuad XLR peamp-2-amp | Audience AU24 SE XLR and RCA | Benchmark speaker cable.

I went with the all Benchmark setup because I thought the HPA4 was the best piece of audio gear I ever heard and wanted to hear this gear in what Benchmark considers the optimal setup. They recommend professional StarQuad XLR. A lot of documentation on their web site.

The system today sounds very clear and neutral with my KEF LS50’s. No fatigue or harshness whatsoever. It definitely does not have that warm detailed glow of the Luxman m900u amp I heard and would not mind buying. It is more like a peek into the recording studio with this gear as compared to something like the Luxman.

I think the neutral Benchmark stack sounds even better than the most neutral system I have demoed in the past, a SimAudio stack with $15K-$20K pieces. I also like it much better than my old Bryston 4B-SST and 7B-SST gear I owned with Thiel SCS4 and KEF LS50. There is less harshness and fatigue compared to these 2 others.

My SACD player is a 20 year old modified Sony SCD-1 that sounds much warmer than my Benchmark DAC3B. I have started to play the SCD-1 again with increasing regularity since it sounds so incredible through the noiseless Benchmark stack. You can really flavor the sound with different types of sources since the Benchmark does not add anything to it. Some may not like this character but for me it is a revelation and the fact that is cheaper than the other options I was considering is icing on the cake.

I am not sure if the 4 Ohm CS3.7 will work with the single AHB2, pretty sure 2 AHB2’s will work. My room is small and i do not play that loud in my office. However, if the AHB2 is not a good match, the CS3.7 goes to another room and the AHB2 stays.

I believe that it is the opposite. One ahb2 works fine but the mono. Ahb2 has a higher impedance and won't work. Check with benchmark.

"Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker "

https://forum.audiogon.com/discussions/running-benchmark-ahb2-in-bridged-mode-and-4-ohm-speaker?high...

Here is the designer of the AHB2 addressing the posts on the thread linked above.

https://forum.audiogon.com/discussions/running-benchmark-ahb2-in-bridged-mode-and-4-ohm-speaker/post...

https://forum.audiogon.com/discussions/running-benchmark-ahb2-in-bridged-mode-and-4-ohm-speaker/post...

BTW - I think the Purifi amps from guys like March Audio in Australia could be similar to the AHB2.

@xyzsantabarbara, Though Thiel Audio is usually better than most at posting their specs, I think you'll find the following interesting:

https://www.stereophile.com/content/thiel-cs37-loudspeaker-
specifications

https://www.stereophile.com/content/thiel-cs37-loudspeaker-measurements

Whether it's due to different measuring techniques or rounding to standard numerations, I think the 4 Ohm nominal rating is a bit off. The Stereophile measurements suggest a low of 2.4 Ohms and the graph looks more like a nominal 3 Ohm rating to me. And with a difficult phase angle to boot. I'd suggest working from that 2.4 Ohm minimum impedance when gauging for appropriate amplification.