Comments on: Single Ended Amplifier Weekend Benchmarking Session

By: Jimmy Auw

Jimmy Auw — Tue, 13 Apr 2010 15:32:41 +0000

Hi,
From JBL077 to Tannoy Monitor Gold 12 perhaps a little bit “different” in terms of sonic preferences.
You need bigger power to driver the Tannoy, I believe.

Thanks.

By: Minh Nguyen

Minh Nguyen — Tue, 13 Apr 2010 07:34:49 +0000

Hi Jimmy,

I currently use the 6SN7 RCA, brown base. I have changed to Sylvania metal base (NOS) and the sound is much better. Thanks for your advice. I wired the VT-62 amp to Mid band using Altec 291-16A (Altec 15A for Low and JBL077 for High) and the system is sound…sweet.
However, when I connect it to the Tannoy Monitor Gold 12, the sound is “muddy”, not clear and sparkling any more!!!! When I turn the volume to 2PM, the sound is “broken”… Unfortunally, I plan to use this speaker at my big living room with the VT-62!!!!Can you give me some advice on this case?
Thank you so much for spending time for my questions!

Best regards.
Minh

By: Jimmy Auw

Jimmy Auw — Fri, 09 Apr 2010 15:00:53 +0000

Hi Minh,
What’s the problem with 6SN7 SRPP at input? I mean, what did you miss?
Perhaps you should try a better tube? I mean, different 6SN7 brand.

Thanks.

By: Minh Nguyen

Minh Nguyen — Fri, 09 Apr 2010 08:29:55 +0000

Hi Jimmy,

it’s been a while I did not fool-around in your site! How are you.

I just completed a VT-62 SE. It sound very good and even better than my Cary CAD-300B-SE monoblock, at least for the mid-high. However, I still not feel OK with the input stage using 6SN7-SRPP. I think the 6SN7 have taken out something from VT-62, but I really don’t know what it is. Do you have any experience for the input stage for VT-62?

Regards.
Minh.

By: Jimmy Auw

Jimmy Auw — Tue, 23 Jun 2009 02:02:04 +0000

Hi Minh,
Nice to know you. Hope we can share more about DIY in the future.

Thanks.

By: Minh Nguyen

Minh Nguyen — Tue, 23 Jun 2009 01:41:10 +0000

Hi Jimmy,
It’s great viewing your blog. Am also a tube-amp DIY’er in Vietnam and we also have a big group in here.

Hope to have a chance to see you in the the future.

Regards.
Minh