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

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.

OP: 

Sorry this took me a little to get back to.  The B&W nautilus speakers need to be aligned on the midrange axis, not the tweeter.  This is an especially big deal with centers that are close to the floor.  Make sure it's tilted upwards so the tweeter "fires" at the top of your head.  This should help fill out the midrange for you.

Erik, thanks for jumping in.

The HTM-1 center on the equipment cabinet under the screen is currently tilted upward using a rubber door stopper.wedge.Center height of bird tweeter is ~ 34" and center of mid/woofers ~27".--do I need to tilt it higher?  The tweeter centers of all 4 front & surround 804's are ~40" high (above seated listeners' ears).

Due to room size and seating limitations the surrounds are close to an end chair and couch end seat respectively.  Last night during a show's dramatic music passage.with multiple HF sounds/instruments there was definite teeth-gnashing distortion (no clarity) at least from the surrounds (possibly from the center as well)..

Do you agree with soix that the culprits are most likely cables, with perhaps some re-cap amp burn-in still needed? There is only a single 25' run of WireWorld STREAM 16/2 Insta-Wire (ST-2) with jumpers to the surrounds (not too worried about the distant rear surrounds right now). .

I'd hate to have to go amp swapping again and not changing the speakers. Just want to enjoy nightly movie/series watching with good dialog clarity and nice music when it happens,without harshness.

Have at it!..

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