Leaderboard

At first, my wife wasn't sure she wanted to have a celebration, but finally accepted it whole heartedly. We had about 25 friends with us at one of the newer trendy places in Chattanooga's South Side. It was a lot of fun (as it usually is when a bunch of Filipinos get together).

So, what has time told you? In my specific case (are they not all specific to each user with unique setups?), it was, primarily, to optimize Yamaha's room correction on the CX-A5200 PrePro with 11.2, but used as 2.2 for music. So while we have similar reasons for using multi channel attenuation, the basic PRINCIPLE is to increase the Voltage SWING in the Pre-Amp, while reducing the Effective Gain of the power amps. This has the net effect of having the signal work further away from whatever noise floor might exist in the chain of events leading to the loudspeaker terminals. If you look across the world as to the mean/average/typical/whatever SPEAKER Sensitivity numbers, it is about 88 db/2.83 volts power amplifier output. I sincerely believe that the operating "window" of all room correction firmware in AVR's and Pre-Pros uses this worldwide loudspeaker INEFFICIENCY that dominates majority of customers as their design target. So basically, those feedback electronics Freak Out and don't know how to handle it as well as something they expect to hear back at a much lower level. So when the test signals are sent our and fed back into the respective Microphone port on these types of Control Units, they "hear" about 12-16 db LOUDER sounds from their bottom to top frequency sweeps. The net effect of this is it PUSHES the operating window of the PEQ's and System Gains way OUTSIDE of the "comfort zone" for which, they were designed. When using high efficiency speakers with horns ranging from 100-112 db sensitivity, we end up confusing these units by creating sounds that are too loud for them to handle. On the deeper, technical side, I could be off base on this, but I have REACTED to it all based on the USER side of the equation. Besides, ganged Potentiometers are relatively CHEAP vs. the rest of all this HiFi STUFF!!

you're driving these speakers with around 100w , which is the maximum power rating of 100w of the RP 600M bookshelf speakers it is normal that the Highs are piercing , since you're into sound distortion levels - all you need to do is lower the volume , or lower the controls of the Treble , or remove the Loudness tone control , or better yet use an equalizer , because sooner or later you will be blowing these speakers .....................replacing 100$ or more of capacitors would be a total waste of money for such an inexpensive set of speakers , you'd be better off getting a 2nd set of RP 600M which will give a much better sound , with 50% less distortion - my guess that you're at the point where you need a more powerful set of klipsch speakers , like RF 7 III -

I jumped and got me the DIY NC400 monoblocks two months ago, figured if I am going for them than it better be fast before prices go up. So far so good. I could be imagining but after some time they got a bit more polite overall, not so edgy as they were at the beginning. Will have to try them with some more efficient speakers. They seem to be somewhat brighter sounding than my other AB class amps.

I must say, I am still fascinated reading about IB set-ups, though I have not heard one as of yet. Some years ago, I did listen to a sub with a 24" driver from Deep Sea sound at an audio show. I was fairly impressed. It wasn't even loud in the room and my pants were flapping. 👍

So, the question is, what is comparable that one can more easily find in the wild?

If I were closer, I would probably grab the other two, or at least one of them. What are you powering them with?

Size comparison of one THT next to SVS PB-12NSD. 😳

Plus, it'll fry your eyeballs. 😵

See if you can rent your basic white van from U-haul. $19.95 a day + miles, they say. You could get all 4 in that, if desired.

50 to 60%, that would be about 100 to 110w per channel, right? The 600m is rated at 100w continous power, so You might be on the edge. But i´m looking foward to the results of your modifications.