Please tell me about the Coda Technologies 15.0

Joe, a word of warning, the CODA 15.0 has an input impedence of only 1K in balanced mode, which means that it could potentially have an impedence mismatch with a tube preamp. It seems like Ren is not having an issue with this, maybe he is not running balanced, but it would make me wary of this match up.

CODA's 50K unbalanced input makes for a much easier match up with a tube preamp, but I don't think that you are running your Sig IIa single-ended, are you?

John is right. It just so happens that both the VAC and the Purity are transformer coupled at the outputs and can easily handle this condition. That is why they were on my short list! I run mine balanced, and it sounds superb. Even so, I doubt short runs would have a noticable sonic difference if RCAs were used. BUT... CODA does recommend using balanced whenever possible, which is one of the things that drove me to focus on those two preamps.

Joe: I didn't catch the speakers you are using. What are they?

Thanks Guys. I plan on talking to CODA before I pull the trigger. I know my VAC Sig IIa has a very low output impedance. That was one of the many reasons why I bought it in the first place so it should match well with almost any amp.

On speakers, I just sold a pair of Dynaudio C1 Sigs. I am thinking about getting a pair of Sonus Faber Evolutions to replace them.

Hi, Joe: I am not familiar with the power/current reqirements of the SF Evolutions (I do see that they are two-way), but the 15.0 will give you plenty of everything you need, plus a bunch of room to grow. This amplifier makes music with AUTHORITY. That is to say, this amp properly drives (handily controls) my 4-ohm Woodmeres in a 30x31.5x12 room at levels louder than anyone would care to listen (and with audiophile quality). That is ten SEAS drivers in all, four of which are 10" diameter. I don't want to beat you over the head with my message, but this amp will will allow you to move up to the biggest, baddest, multi-driver speakers if you so choose, and do it with both authority and grace. Just trying to offer more guidance by giving some perspective here about the capabilities of this amp.

Thanks Ren,

I'll contact CODA after the new year. I do not want to bother them until after the holidays. It looks like CODA and specifically the 15.0 will drive just about anything.