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Infinity Irs Beta

I recently purchased a set of the Irs Betas. My system consists of a Krell Kct Preamp, Krell Kps28 CD player, Krell Fpb400 cx which I am powering the mid,high panels and using the cast interconnects between them and a Krell Ksa300 for the bass towers with the servo unit. Would tubes on the top end be a big improvement? Any folks here run tubes on their Betas and have you compared the two? It sounds wonderful as is.
rvito

Showing 3 responses by mofimadness

mofimadness's avatar
mofimadness
5,363 posts
 
Back in the day, Infinity made a series of high-end speakers called The Infinity Reference Standard, (IRS) series.

These include:

The IRS
The IRS Beta
The IRS Delta
The IRS Gamma
The IRS Epsilon
The IRS Omega
The IRS Sigma

So really, the name the OP uses is correct. I was an Infinity dealer for many years and even sold a few of each of the above, except for the IRS.

Out of the hundreds and hundreds and hundreds of speakers that I have personally owned, the Beta's are still the one speaker I wish I never had sold. Still one of the best speaker systems ever made....IMHO.
mofimadness's avatar
mofimadness
5,363 posts
 
The last version of the IRS was the V (5), but the IRS series all started with the IRS I, then the II, then the III, then the V. There wasn't an IRS IV.

They are indeed MASSIVE speakers and sound that way too. I've heard them several times and the word DYNAMIC always comes to mind.
mofimadness's avatar
mofimadness
5,363 posts
 
The last IRS I heard was at PS Audio in February 2014. They hosted the Colorado Audio Society meeting so that they could show off their new DSD DAC.

If you guys ever get a chance to hear these monsters, it's truly an experience not to be forgotten.

I've heard their Beta's too. Still one of the best.
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