I just picked up a pair of bose 901 IV with stands

[Jason_1976]

This morning I was looking on the local craigslist and in the free area someone had a pair of bose speakers. free curb side pick up. i emailed them and asked them if they could set them to the side for me. it was a good half an hour drive to pick them up. They emailed me back and set them to the side. they also emailed me and asked if i wanted to buy the matching stands for 40 dollars. I broke down and bought them. they said at one time they had the eq but a friend said they could repair it for them and someone stoll it from their friends house. They look to be in good shape but when i removed the cloth the foam edges are all shot.

I am wondering if i am better off getting the cloth kit or the foam edge kit. i was look at http://www.simplyspeakers.com/2doityourself.htm and its 39.99 for the foam and 59.99 for the cloth. both have free shipping.

The speakers are almost spotless i see one little chip in the vineer on the edge of the one speaker but you dont see it unless you are looking for it. they are not all scrached up or anything.

[901Fixer]

Originally Posted by Jason_1976

This morning I was looking on the local craigslist and in the free area someone had a pair of bose speakers. free curb side pick up. i emailed them and asked them if they could set them to the side for me. it was a good half an hour drive to pick them up. They emailed me back and set them to the side. they also emailed me and asked if i wanted to buy the matching stands for 40 dollars. I broke down and bought them. they said at one time they had the eq but a friend said they could repair it for them and someone stoll it from their friends house. They look to be in good shape but when i removed the cloth the foam edges are all shot.

I am wondering if i am better off getting the cloth kit or the foam edge kit. i was look at http://www.simplyspeakers.com/2doityourself.htm and its 39.99 for the foam and 59.99 for the cloth. both have free shipping.

The speakers are almost spotless i see one little chip in the vineer on the edge of the one speaker but you dont see it unless you are looking for it. they are not all scrached up or anything.

Free is good. How many screws hold in each driver? I believe the 3-screw drivers had foam surrounds and the 4-hole drivers used cloth.
Beware, Bose 901's are some of the most debated loved/hated speakers ever made. They are unique in their design but lack response out of the midrange. Some of the replies you will recieve may not share your entusiasm for repairing them.
I just finished two stands for a set of 901/VI to sit on. Each stand holds a Selenium 15" woofer so the absence of bass has been corrected. I may add a tweeter next but they are pretty enjoyable now as they are. Making sure how they are placed with regards to walls and/or other reflective surfaces is crucial to them sounding tolerable.

[defect9]

I'd always wanted to hear a pair of 901s just to see what the fuss was about, and because they really did look like a great concept if I wanted room-filling sound

[Salas]

You will need the EQ curves at a point. Looks like the vertical scale is 5dB/div.

[901Fixer]

Looking at the EQ curve are we able to ASSume a rough frequency response for the 901's? I've never found one, of course Bose never published one. I'm curious to see how high a tweeter could be crossed in and just how "Full Range" a 901 is. I was hoping to bring in a tweeter 1st order around 5k to 6k if possible.

[Salas]

I would get a cheap digital processor and a Panasonic electret mic, plus I would download ARTA measurement software demo. I would EQ for a flat but drooping house curve from both speakers playing together at listening position. 2kHz -2dB down from 200Hz. 10kHz -2dB down from 2kHz. That process will answer all questions for the raw 901 too.

[Jason_1976]

Originally Posted by 901Fixer

Free is good. How many screws hold in each driver? I believe the 3-screw drivers had foam surrounds and the 4-hole drivers used cloth.
Beware, Bose 901's are some of the most debated loved/hated speakers ever made. They are unique in their design but lack response out of the midrange. Some of the replies you will recieve may not share your entusiasm for repairing them.
I just finished two stands for a set of 901/VI to sit on. Each stand holds a Selenium 15" woofer so the absence of bass has been corrected. I may add a tweeter next but they are pretty enjoyable now as they are. Making sure how they are placed with regards to walls and/or other reflective surfaces is crucial to them sounding tolerable.

they have the 3 screws and were foam. from what i am reading the cloth ones will work on the 901 IV speakers. they are to last a lot longer. is it worth paying the 20 dollars more for the cloth? they say they have the same flex as the foam surrounds and proform the same. I also found them on ebay. http://cgi.ebay.com/LIFETIME-Cloth-S...d=p3286.c0.m14 they are only 49.99 plus shipping so this is a better deal then the first web page i found. but they are a v roll and the other web page is a m roll http://www.simplyspeakers.com/2doityourself.htm

[Jason_1976]

I forgot to ask what ones are better the v roll or the m roll?

[Jason_1976]

yesterday I picked up the 901 iv speakers and today I picked up a 2nd pair of bose speakers for free. off craigslist again. This time it's a pair of bose 4.2 stereo speakers. The foam surrounds look great but I think someone replaced them before. they look to of done a great job if they did. the date on the 4.2 speakers is 1985. I saw photos on ebay and they don't look like the stock foam edges on the woofers. they look mint. so do the woofers. the surrounds arent dried out and they are not to soft. I haven't tested them to see if they work. I will be doing that later. normaly I see something like this on craigslist and they are already gone.

[cbdb]

I would EQ for a flat but drooping house curve from both speakers playing together at listening position.

Why both speakers playing together? This will introduce comb filtering between the two speakers which will effect your measurements. ( Although with so many drivers the 901s comb filter all over the place anyway, so with these particular speakers might not matter so much)