Considering a new amp for my Vandersteen Quatro CT

We are a coda dealer so we are going to be biased th.8 is a fabulous amp clean detailed transparent while  still sounding a tad warm huge soundstage great bass

the amp is in reality three different amps depending on bias

You can order one way and re-bias the amp in the future for more power

we tend to go with level1 150 watts class a/b which would be perfect for your quatros.

however at any time you can have the amp re-biased to get either 250 or 400 watts a/b

so if you ever got a much less efficient loudspeaker you would not need another amplifier

add to this incredible build quality, a fantastic warranty, manageable  size and weight, runs warm, not hot.  made in America you just cant go wrong.

Dave and Troy

Audio intellect NJ

Coda dealers

Since you have a fantastic sub and mains are high passed taking MUCH of the load off of your amp, you can cast a much wider net - IMO seeking out an amplifiers with “ magic midrange “ vs. a lot of $ going into an amplifier you “ could weld with “. Obviously a place to start is w Quattro owners, dealers and RV… I commented the owners forum on your thread there :-).

Dont miss the opportunity to greatly shorten the speaker wire impact to sonics AND added expense by making the move to monoblocks… this is where a dealer / designer focused on systems engineering / thinking / synergy will be of help… The 7 / HPA 7 system ships w 30” speaker cables…for a sonic…reason.

Best in your search and quest !

Jim

Just want to point out that the ARC LS15 specs suggest that using it with an amplifier with input impedance less than 20K ohms (balanced) is not recommended.

The CODA is the only amp of those you mentioned that does not meet this spec.

I agree with @tomic601 you could cast a wider net (lower power amplifiers can work well with the Quatros).

I forgot about Belles Aria Monoblocks. Well within your budget, unless you go to the Signature, but well worth it.

Call or PM John Rutan (Audioconnection). He'll give the best info. and he won't try to sell you.

bob