Wowarning

I just picked up the Marantz SR6013. It's "last year's model" and is down from $1500 to $900 for who knows how long (on Amazon). The differences between it and the newer SR6014 selling for $1500 were non-existent in my life. The only difference I could even really understand was it has the newer bluetooth protocol. Music sounds amazing as well. I have to admit I still want to add a 2 channel amp to take music to the next level, but it's several very noticeable steps better than the Denon E400 it replaced. I actually hooked up a vintage Harman Kardon 2 channel power amplifier off the pre-outs and compared them to see if it was worth putting it in the loop. It was not. There may have been the slightest improvement over the Marantz, but negligible to the point that I'm selling it and putting the money toward something that should produce a noticeable difference. It's hard to beat the price to performance ratio at the moment.

That is so weird - lmao. Why in the world would they HAVE a 5.1 bi-amped + Zone 2 if the preferred way is 7.1 bi-amped + Zone 2!!!???!?!?! You've given me more stuff to check out though. If you find it first, let me know what you turn up.

Yes. I'm only running a 5.1 setup, so I chose the 5.1 bi-amped + zone 2. I think it was initially set to 7.1 + zone 2. Like I said, I don't know why it would have eq'd the output of that channel, so maybe there's a legitimate issue with the avr. As a test, I'll bi-amp them again and re-run the Audyssey and see if that L rear surround output still sounds off or if that fixes it. Interesting that you found it more dynamic without bi-amping, I wonder why that would be? To be honest, after doing a little research I couldn't really find much to support the practice - at least in the fashion that I was doing. Common sense-wise it seems like you should have more available clean power to the mains if you're using 4 amps instead of 2, but in practice there didn't seem to be much evidence to support that idea. If it's not really advantageous, why do high end speakers come with the capability, and why do receivers offer the option as well? Maybe the speaker wire and banana plug industries paid them off to push the idea, lol.

So I took your advice - I put the jumpers back on and ran one set of cables from the front L and R outputs, and would you believe they sound as near to identical as I could expect from any two speakers!! The right side sounds the same when bi-amped vs single, but the left channel highs are quite different when bi-amped. Those were coming from the L rear surround output. Now I'm concerned that the receiver might have an issue. Since I had nothing hooked up to those outputs when I initially ran the Audyssey calibration (Marantz SR6013 avr) it shouldn't have eq'd the channel in any way, but then again, I really should have re-run the calibration after I bi-amped it. Maybe I'll do that and see if the issue persists. At that point, maybe I consider swapping back the receiver, it's only a week old. Thank you so much for your idea! I still have detective work to do, and there's still a problem, but you totally put me on the right track, and I might be able to completely fix it without needing to send anything back at all - fingers crossed. I'll update my progress.

I picked up a pair of RP600Ms a few weeks ago and have been changing around other parts of my system to get the most out of them. I just added a Marantz SR6013 avr and was checking levels after redoing all my wire with the white noise generator and I noticed that the two RP600Ms sounded quite different from each other. This strikes me as an indicator that something is likely "off" with one of the speakers. I have them both bi-amped using the rear surround amps for the tweeters. Does anyone have any experience or insight? Should I be contacting Klipsch for warranty service already? Thanks in advance!