40+ watts SET, cost is not a problem


Friends,

Hope everyone is well here. I am visiting after a long time. I have a query on behalf of a close buddy of mine. He is using a pair of TAD CR1x loudspeakers. Gorgeous speakers for sure. The source is an EMT 927 TT & JPA66 preamp. For the amplification things are getting tricky. He has tried the TAD M700s reference power amp and while it sounds very controlled, it doesn't have the openness and dimensionality of tone that a good tube/SET amp provides. We are considering trying a good SET for this system. Given that TAD needs some power blossom well and expand on effortlessly, at least 40 watts of SET power would be needed. The quick choices are Kondo Kagura & Wavac HE833 Mk2. But I need more suggestions on these and other comparative products.

1. Has anyone heard the Kondo and Wavac gears to suggest a comparison? I am just a bit worried on the amount of Silver used in Kondo. I have normally found that silver takes away something from the flow and harmonics. Tell me more about it.

2. What other options can be considered in this realm? No SS please. Looking for SET options primarily.

 

Room size is moderate 17 x 13 feet. Music preferred are classic rock, jazz, pop and some classical

 

pani

Kondo or AN UK are some (or the) of the finest SETs you can find, but I can't comment on the silver used in the Kondo, although silver is the best conductor. However, as other people stated, the TAD speakers are low sensitivity so even if you have 40W, they are probably not the right amplifiers. I would suggests to look at push pull like the EAR 509, which is 100W per channel or the EAR 890 which is also bridgeable to 140W per channel. Otherwise you better change speakers if you want to use a SET.

EAR509 amplifier is a good amplifier but it sounds completely different compared to any SET amplifier.

It has a number of feedbacks and is designed and sounds more like a transistor amplifier. It is also completely balanced from input to output.

https://www.turneraudio.com.au/EAR509-reformed.html 

Pani,

You have two of the best circuit designers I am aware of (Ralph and Lynn) tell you that tubes are not going to deliver what you are looking for with your hard to drive speakers. I'd believe them.

Class D GnFETs are one very good option (that I have no experience with), but I'd also make a phone call to Doug Dale at CODA regarding his Class A solid state high current amplifiers. He has the newest version of the System 150 WPC (100 WPC Class A) and System 250 WPC (200 WPC Class A) coming into production soon....his contact information can be found on the CODA website.

Since they are new products I of course have not heard them. I do own their baby brother the S5.5, and it is an absolutely brilliant amplifier with performance I never thought I'd be able to achieve in a "mid/hi fi" system.

Everyone realizes that @pani is asking for a friend, not for himself, right?

In his original post, he wrote:

I have a query on behalf of a close buddy of mine.

So, while the detailed advice is great, one wonders how much will be imparted, or if the buddy even cares.