45 Luv

FullRangeMan · « **Reply #40 on:** 21 Mar 2017, 02:52 am »

Wow a refined taste, thanks.

roscoe65 · « **Reply #41 on:** 21 Mar 2017, 11:13 am »

Quote from: sfox7076 on 21 Mar 2017, 02:45 am

It's a coral beta 10.

If I'm not mistaken it also has a matching passive radiator.

sfox7076 · « **Reply #42 on:** 21 Mar 2017, 02:28 pm »

Yes. They are stock speakers from the 70s as I understand it.

doggie · « **Reply #43 on:** 25 Mar 2017, 02:37 am »

Quote from: sfox7076 on 19 Mar 2017, 12:12 pm

I have the fortune of having dealt with both Radu and Oliver. Both make really great stuff. I think the circuits and build philosophies are somewhat different and the iron used is always different. That said, the results of both are undeniably awesome. Radu has a blog with his stuff on it. https://simplepleasuretubeamps.wordpress.com/

+1

I bought a 301A preamp from Radu that was really well built. He does really good work.

happyrabbit · « **Reply #44 on:** 2 Apr 2017, 04:06 pm »

Radu's pre looks awesome

Mr Oliver is attempting a dht pre based on the EML 20 to drive my 45.. Choke Loaded, D.C. Filament

Docere · « **Reply #45 on:** 11 Apr 2017, 06:20 am »

Hi rabbit,

Quick question... just to take it off topic in a different direction...

Do you get enough volume from the Type 45 SET into the Birch Ravens? I'm thinking of doing something similar (well, similar efficiency, no crossover) and your opinion would be helpful.

Cheers.

happyrabbit · « **Reply #46 on:** 12 Apr 2017, 09:25 pm »

Before the Raven's , I had owned a couple high eff speakers from Omega. 2 watts is more than enough. I feel the output transformers are critical and worth the extra $$$$ . Recently installed a Mullard GZ32 from 1966.. great rectifier

Dwight

Docere · « **Reply #47 on:** 13 Apr 2017, 10:06 am »

Quote from: happyrabbit on 12 Apr 2017, 09:25 pm

Before the Raven's , I had owned a couple high eff speakers from Omega. 2 watts is more than enough. I feel the output transformers are critical and worth the extra $$$$ . Recently installed a Mullard GZ32 from 1966.. great rectifier

Dwight

Thanks Dwight - I may just give it a crack once I get my next amps built. I hope you are right re the transformers... I have 2x ~5.5kg of custom nano-c core awaiting my build - plenty of inductance and wide bandwidth. Power supply probably matters too.

Cheers!

happyrabbit · « **Reply #48 on:** 10 May 2017, 12:34 am »

Docere,

45's driving 92db monitors from dc10audio..

Dwight

guf · « **Reply #49 on:** 10 May 2017, 01:14 am »

Whoa!? some one else with dc10 audio? cool.

happyrabbit · « **Reply #50 on:** 11 May 2017, 02:23 am »

It feels good to be in the dc10audio family

roscoe65 · « **Reply #51 on:** 11 May 2017, 03:28 am »

Is that a 5" Lowther with a phase plug?

happyrabbit · « **Reply #52 on:** 11 May 2017, 04:23 am »

http://www.ebay.com/itm/332187963003

Dwight

roscoe65 · « **Reply #53 on:** 11 May 2017, 01:52 pm »

It looks like a Lowther DX55 with a different phase plug, but I can't be sure without seeing under the hood. If the speaker is rated 92dB, I would imagine the Lowther is crossed over at 6dB/octave to knock down some of its midband peak.

Brad · « **Reply #54 on:** 11 May 2017, 01:54 pm »

Love the 45 tube.

I finally got a chance last week to get a pair of the EML solid plates, in place of my vintage 45 output tubes.
Wow, what a difference, in my Korneff.

FullRangeMan · « **Reply #55 on:** 11 May 2017, 02:28 pm »

Quote from: Brad on 11 May 2017, 01:54 pm

Love the 45 tube.

I finally got a chance last week to get a pair of the EML solid plates, in place of my vintage 45 output tubes.
Wow, what a difference, in my Korneff.

Interesting, I look forward your sound impressions.

Docere · « **Reply #56 on:** 20 May 2017, 05:15 am »

Quote from: roscoe65 on 11 May 2017, 01:52 pm

It looks like a Lowther DX55 with a different phase plug, but I can't be sure without seeing under the hood. If the speaker is rated 92dB, I would imagine the Lowther is crossed over at 6dB/octave to knock down some of its midband peak.

Hard to tell, but I doubt it is a Lowther. Tang Band W5-2143 looks to have a more likely surround, phase plug, whizzerless... and cost. Could feasibly be used in "92db"sensitive speakers. Apparently really nice sounding drivers, especially for the price.

Cheers.

roscoe65 · « **Reply #57 on:** 20 May 2017, 11:00 am »

Quote from: Docere on 20 May 2017, 05:15 am

Hard to tell, but I doubt it is a Lowther. Tang Band W5-2143 looks to have a more likely surround, phase plug, whizzerless... and cost. Could feasibly be used in "92db"sensitive speakers. Apparently really nice sounding drivers, especially for the price.

Cheers.

You're 100% correct. Looking at the response curve it gives an honest 93dB above 300hz or so. I could see this used successfully in a two-way with a first order crossover at 300hz or so. You would get a the entire midrange and upper frequencies out of a single driver. The lens/phase plug could be used to tame some nasties up around the 10khz range.

I think Tangband is underrated and is a good choice some interesting DIY designs. I like that they have a good range of high efficiency, wide band drivers.

Brad · « **Reply #58 on:** 20 May 2017, 12:47 pm »

Quote from: FullRangeMan on 11 May 2017, 02:28 pm

Interesting, I look forward your sound impressions.

I've only had 3 listening sessions so far, but the EML Solid Plates are better, in just about every way, than the vintage 45s I was using. Bass is more solid, midrange clearer, highs more extended. Overall presentation is more stable. Vocals are more lifelike, I'm hearing more details than before. These were not cheap, but I think they are well worth the money.

FullRangeMan · « **Reply #59 on:** 20 May 2017, 01:39 pm »

Thankyou for your report.These are good news, finally happend some evolution on tubes sound quality.