Krell KAV-500 vs S-1500 5 Channel & cables

Just to be clear, what exact model cables are you using for the front L/R/C?  What amp were you using previously, and did you hear these issues before or is it just with the Krell?  Also, what preamp/processor are you using?  All this stuff matters a lot so more info would be very helpful.

Thanks for the reply!

The L/R/C cables are prototypes my previous DAC company developed. Somewhat similar to Nordost/Goertz. Flat extruded teflon over conductors for the HF and silver coated tubular braided wire for the LF as bi-wired pairs.  They were used in audio shows "back then" and are quite good.  Same for the interconnects which replaced WireWorld which were not as open sounding..

If I did look at experimenting with cables, which reasonably priced brands would you suggest work well with B&W-Krell? 8' bi-wired pair L/R & 4' bi-wire to center.

As mentioned, the receiver/processor is a fairly new Marantz Cinema 60.

Previous amp i still have is a 5 channel Butler Audio TDB-5150, which sounds quite nice but not as clear or transparent as the Krell. I did experience some of the same slight HF distortion with it as well.  Wondering if the lower cost WireWord single run to the surrounds could be contributing factor?

Do you think it's worth pursuing the S-1500 Krell yet? Also, not sure of the break-in period for the re-capped KAV which might have an effect on HF?

All power cords are shielded heavy gauge stock and hopefully won't have to go down that trial path as well ;-)

Cheers.

I’d maybe give the Krell more time to see if it settles in better as it burns in more, but if not the first place I’d look would be the front interconnects/cables.  I wouldn’t pair any silver cables with older B&W Nautilus speakers and thinking that could be the source of what you’re hearing, especially as it existed with the Butler and got worse with the more transparent Krell.  Plus, of your options cables are probably your cheapest/ easiest option to explore (especially if you’re open to buying used) and are obviously cheap/easy to ship.  If I was you I’d try these Acoustic Zen speaker cables and see if you notice an improvement — you could try them with your L/R fronts and then separately with your center to gauge the effect on all your front speakers.  I’m thinking they’ll have fuller mids and more refined highs that could be a better fit for your system, and if they don’t work out you can turn around and sell them at little/no loss as there’s a liquid market for used AZ cables.

https://www.ebay.com/itm/235430798208

Anyway, that’s what I’d do FWIW, and best of luck.

Good advice. I'll concentrate on the cables/interconnects while the Krell burns in. 

I met "Mr. Zen" years ago at a show in Vegas.  Nice speakers, one of the best sounds there.

Thanks again for the feedback.

All the best.