Will increasing size of amp improve sound quality?

Sounds good. As I understand I would not hsve to send the speakers to you? And, how difficult is it to reinstsll the upgrade? I repeat, my electronic skills are nil. Jack

Crossovers are excellent upgrades in klipsch, especially the reference series I have heard with the upgrade, totally gets about 20% more everything or better. Cleaner bass that helps keep up with the already slightly hot mids and highs, bigger soundstage, and more effortless, almost like going up in efficiency again even though they are already very efficient. But as for Power in this case, Power means nothing without accoustics. Do crossovers and few bucks on room accoustics and you will be better off for now, but a better amp not necessarily more power will always benefit down the road too.

I hate to interject here, but a crossover 'upgrade' is just as likely to make the speakers sound worse, or do nothing at all, as it is to make them sound better. Replacing a few parts with larger versions of themselves in a crossover network is a shot in the dark, and no guarantee you'll improve upon something a reputable manufacturer like Klipsch already tuned in a lab. If I were you Jnorth1178, I'd go out and listen to as many systems as you can and get an idea of what kind of sound you like. Figure out if there is a specific place in your system you'd like to change and what you are hoping to achive, and then ask your question again, but be more specific. You'll get much better answers.

Perkadin
Piece for piece I say you need to hear an exact upgrade... Believe me Klipsch did spec. the reference pretty well, but used .14 cent Capacitors and inductors, I have heard these speakers done with outboard crossovers all of the same value nothing different accept they were way too big with quality caps and inductors to go back into the speakers cabinets, and they absolutly smoked the 3.00 dollar computer grade components that they use stock, not even close, transparency and absolute size of the soundstage opened up wide.. maybe this will not be the case for all, but for a couple hundred if you have a good speaker you really like than it is worth it far more than trying to buy a different speaker for a couple hundred more and hope for these results... In most cases I have found an 800.00 dollar speaker like we are talking about here having around 1000.00 total invested after crossovers will far outweigh almost anything without spending about 3000.00 on another pair to move up the line for real, and at that point forget bookshelf and just go onto floorstanders. But I heard these results on floorstanders, so if Jnorth is looking for more powerful or bigger bass whatever than yes move onto something completley different.

Jack,

I believe the RB-75 has two speakers, a tweeter and a woofer. There are two wires to each that need to be diconnected (one + and -). There are probably four screws that hold the terminal cup to the speaker cabinet. This will need to be taken off and the crossover network is usually attached to it. The terminal cup/crossover network is the only thing that needs to be sent to me for the upgrade. The speaker cabinet and speakers stay with you.

Looking at the schematic, I see 3 resistors and 4 caps per board that would need to be replaced. There are two air core inductors in the right place, so those will be fine and will not need to be replaced. So the total will be 6 resistors and 8 caps. The resistors will be replaced with high quality non-inductive Mills resistors and the caps will be your choice. I usually use Kimber Kaps and that make a big improvement over the stock caps.

This would be a one/two evening job for me. I would try and pre-order the parts to expidite the crossover upgrade. This will make the turn-around time quick and your downtime minimal.

Hope this clears things up a little. Please let me know if you have anymore questions.

Thanks,
Mike