It struck me last year when I was toying around with extending the sub bass frequency response when experimenting with carpet tubing placed over the (air duct port).

This time I used a different approach with a small piece of plastic tubing about 7

Hi all: I have a Kenwood KR-A5070 100 w x 2 channel home receiver now powering 2 Technics speakers SB-S409 8 ohm speakers (15" woofer). I had the same model speakers w/ 12" woofers until recently when I had the 15"-ers handed down. All equipment is mid-90's vintage.

Problem...doesn't seem like I have enough power to drive these speakers...sounded better w/ the 12's but I want to unlock the power of the 15's!

I can't seem to find home receiver over 120 w? All I want is 2 channel. Will the 120 w make a big difference?

Just a question out of curiousity. Some speaker designs are sealed & others are ported. Now granted, the designer had specific goals in mind for their performance by choising one of the two designs. What is the real difference between the two? Does a ported speaker provide more bass than a sealed speaker? Does one design perform better than the other, & if you were to stuff the port holes how would it effect the speakers performance? Could that possible harm the speaker? I think it's all about moving air inside the cabinet.

Ok, so my knowledge is quite limited, much like my funds for this project. But...

I was recently given a Pioneer Elite VSX-80TXV Receiver. Seems like a decent receiver, i have it working with my Plasma connecting a PS3, Wii, and cable box with no issues.

However, it's running crap speakers that my roomate had from a HTIB. So i want to begin to build my own system, but i need to do it one step at a time.

Hi, I was wondering if you could give me some input to a slight problem I have been having? The other day I still noticed the very slightest kinda hum buzz going on in both of my channels. It can only be heard at all if the amp gains are past half way up. If you were not listening for it most people wouldn't hear it. I noticed it after playing my Nakamichi cd player, and switching over to my Harman Kardon CDR-26. The Nakamichi is dead silent. All I have to do is turn on the H/K and I get the noise! I don't even half to be on the H/K's input, just turn it on.

hey everyone im new to the audio scene. I am currently thinking of getting an integrated amp and two speakers which of the following do you think are best or other speaker pairs which are about 600 or less.
PSB Image B25
PSB Image 4T loudspeaker
NHT Classic Three loudspeaker
Polk lsi7
b&w 602 s3

also with these type speakers, should i get a preamp with the integrated?