Speaker Re-Foaming

[stevej37]

Spent the better part of the day replacing the foam surrounds on my Yamaha NS-A2835 floor speakers. (it was snowing all day). Each one has two woofers that the foam was almost completely gone.
They also have a mid-range and a tweeter. (no foam damage on those)

Took about an hour for each one...most of the time spent removing the old glue.
Here's the third one I did...gets easier with each one.



I also found the tweeters on both had a crinkled film cone. Took them apart and pushed them back into shape with thumb....done. Don't know if being pushed in makes a difference in the sound?

[Ayles]

nice!

This is something I have always wanted to try. The subwoofers in my jukebox definitely need this done as the foam is starting crack and disintegrate.

[stevej37]

^^^ Thanks....it was easier than I thought it would be. They send very detailed instructions with the kit. Here's a link to the one I used..it's enough for 4 speakers. They have kits for any speaker.

https://www.amazon.com/gp/product/B00CQ8P9QO/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

The bottom one on the front right speaker was by far the worst of the four. I was wondering why until I realized the floor furnace register is close to it. The foam was completely gone.

[stevej37]

Re-installed all the speakers in the cabinets....dug out my Sony speaker calibration microphone.
Let it adjust the speakers to the correct listening level...which I haven't done in years.

They sound like new again...very pleased with the sound.

[ErVikingo]

Look good!

[stevej37]

^^^ Thanks
I have a question for anybody that uses a sub...
My Klipsch ported self-powered subwoofer has a cross-over setting that I'm trying to set right.
It's used almost entirely for streaming movies and some cable tv. I have the cross-over set now at 100 hz and the gain is about a 2 out of 10 (hardly up at all)
The bass is still a little too boomy. Should I just lower the gain? Or is my cross-over set wrong?
The phase is set at 0

[Zeke]

Originally Posted by stevej37

^^^ Thanks
I have a question for anybody that uses a sub...
My Klipsch ported self-powered subwoofer has a cross-over setting that I'm trying to set right.
It's used almost entirely for streaming movies and some cable tv. I have the cross-over set now at 100 hz and the gain is about a 2 out of 10 (hardly up at all)
The bass is still a little too boomy. Should I just lower the gain? Or is my cross-over set wrong?
The phase is set at 0

I wish I could answer your question specifically but subwoofers are too much in a home setting for me. It would be nice if you could alter the frequency, not just the crossover. 50 Hz is always going to 'boom'. It would be interesting if the range could be changed to 100 to 200 Hz and then set the volume.

[stevej37]

^^^ I'll try moving the cross-over up some. I haven't tried that yet....Thanks.

This Klipsch has a 12" sub and it replaces an Advent with a 15' sub
The Advent was old and the capacitors gave out so I sold it on CL and bought this Klipsch.
I retained the settings from one to the other and the Klipsch is no where as good as the Advent was.
I'm starting to wonder if I should have gone with another 15" sub.

[Dpmulvan]

Good to see your staying out of the bars and doing something constructive.

[stevej37]

Yes...but I think bars are cheaper when you add the cable bill, streaming bill, and beer.

Another thing I just thought about...My Advent was not a ported subwoofer where this Klipsch is.
That might be part of the reason why.

[ErVikingo]

@stevej37 Hard to answer without having an idea of the modes in your room and the frequency response range of your speakers.

Now (not what i do with my 2-channel system but I do on my movie setup) get REW (free), a miniDSP UMIK1 microphone and a MiniDSP DDRC; tun the measurements and ask REW to calculate an eq curve.

Its magic especially for movies and every day listening!

[stevej37]

Is that the same as the Sony speaker calibration microphone? Post 4

My amp is fairly new...a Sony 5.1 and it came with the set-up microphone. It seems to work well for the fronts, rears, and center....but the sub just won't perform like my old Advent. The Advent would shake the room at low frequencies....this one booms.

[Scott Douglas]

For what it's worth, I'm running my Infinity speakers without a sub. My front mains are Column II's with two bass speakers each, the down firing ones are low freq only, I forget what the cross overs are at. The rears are CS3008's with similar bass speakers. I find that some TV shows and movies are so bass heavy that it feels like the house will shake down.
Nice work on the refoaming job. I've done all four of my speakers and they really are fun to listen to.

[ErVikingo]

Originally Posted by stevej37

Is that the same as the Sony speaker calibration microphone? Post 4

My amp is fairly new...a Sony 5.1 and it came with the set-up microphone. It seems to work well for the fronts, rears, and center....but the sub just won't perform like my old Advent. The Advent would shake the room at low frequencies....this one booms.

Can you please give me the dimensions of your room, L W H, your sitting position and the position of your speakers and subwoofer(s)?

Does your Sony run any of the "room correction" systems?

Also speaker and sub models

[ErVikingo]

Remember, subwoofers for movies are mostly for "LFE" (low frequency effects) and for music, they are used to extend the low frequency response and to fill in voids caused by room modes

[stevej37]

The room is 18X18 ft. and 8 ft high. All seating is opposite of the front speakers about 12ft away.
Rear speakers behind the listening area and about a foot higher. Sub is in one front corner and the front speakers are at the edges of my 65" tv.

Speakers are Yamaha NSA 2835 for the fronts, Bose 201's for the rears and a JBL SC-305 for the center front on the tv stand under the tv.

My Sony amp has about a dozen selectable sound fields. I normally use the Movie HD-D.C.S. setting....it sounds the best to me.


Edit: I realize the 201's are reflective speakers and have compensated for that. They sit on shelves on each side so that the sound is reflected off the back wall.
The Sony model is STR-DH590

Also, I always have the tv speakers set to 'off'

[stevej37]

the sub is a Klipsch R-120SW

[stevej37]

This might explain it better....

[908/930]

Steve get that sub away from the corner, try 7' out. You can try plugging the port. Have you tried running it 180 deg out of phase with the other speakers. I would also run the crossover lower 50-80hz, those main speakers should be able to go below 80hz.

[Scott Douglas]

Steve, does your system allow you to tell it the size or ask for the size of the different speakers in the different locations?
My Denon system uses the Audyssey system which asks the size of the surround system speakers when it does its thing.