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Bose 901 Series IV - EQ doing a buzz sound…
Hi everyone, I’m fairly new to the forum but I read very good advices here before :) hope someone can help me understanding what is going on with the EQ and if this is some form of easy repair . I have a pair of Bose 901s connected to the EQ and having an external power amp integrated with my...- Castanheiro
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- 901 bose eq equalizer iv
- Replies: 12
- Forum: General Audio Discussion
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Do the series 6 BOSE 901s work well with the BOSE 550 receiver?
Hi I’ve only heard of people using series 3 and 4 901s with this receiver. I imagine the only difference between the series is the equaliser settings. Also is this a good package to listen too. I’ve got the opportunity to buy one and have no equaliser with the 901s I saved from the scrap heap a...- JeremyJJ
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- 901 bose 550
- Replies: 15
- Forum: General Audio Discussion
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Bose 901 EQ light/power switch
So I’m wrapping up my restoration of a Bose 901 Series I Equalizer, new caps and resistors throughout, and something strange happened. The neon light hasn’t worked since I got it, and I’ve yet to deal with a replacement. But yesterday when I (thought I) was finished and put it all back together... -
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Bose 901 series V equalizer - anyone have a schematic?
Hello, I have recently acquired some Bose 901 series V speakers, stands and equalizer. Sadly I didn't get a chance to test before I bought. The equalizer seems not to be working - when I depress the "monitor" switch, It does not seem to engage the equalizer circuit. I am trying to trouble...- special_20
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- 901 bose equalizer
- Replies: 4
- Forum: Speakers
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Bose 901 subwoofer?
Hi all! You'll have to excuse me because I'm fairly new to this whole world, but I'm working on building a decent system. I recently found what I think is a Bose 901 subwoofer, but I can't find any resources on it. Did Bose in fact make a 901 sub? -
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Crackling noise from Bose 901 equalizer
I have a Bose 901 series 3 active equalizer that has a crackle in the left channel.The unit has been recapped, and all transistors in the left channel outside of one 2n3906 have been replaced. I swapped the 2n3906 with the identical transistor from the right channel (which does not produce this...- Thomas Oder
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- 901 active equalizer bose crackle series 3
- Replies: 24
- Forum: Solid State
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My Bose Receiver Stinks - Literally!
Hi AK friends. I recently came across a Bose 551 Spatial Receiver and hooked it up to my 901 IV and within a few minutes there was an acrid smell coming from the unit. I looked it over very carefully and did not see any signs of cat or animal urine, it's very clean inside and out. Has anyone...- MCM Marvin
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- 551 901 bose smell smells spatial vintage audio
- Replies: 19
- Forum: General Audio Discussion
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Best Craig's List and Kijiji Scores!
In light of the Craig's list threads we see here, I thought I would post my most recent score on Kijiji Canada, so I searched dollars and sense, but didn't find any such thread. I decided to create a thread on the subject, and hopefully there will be lots of activity. Post your best online...- BilboBaggins
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- 901 bose mac1900 score thorens
- Replies: 11
- Forum: Dollars and Sense
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Bose 901 IV Advice
Wondering what you guys think: Looking to possibly replace my CV D7's with a pair of Bose 901 IV's that I found for sale. They are $200, cabinets are in great shape, he says they have new surrounds but do not have the EQ. They are about a 3 hour drive away. Might consider picking them up if he... -
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Bose 901 distortion. Replace surrounds?
I'm a newbie and have never repaired speakers before and know little about them. I'm looking to acquire and build a vintage system. I found some Bose 901 Series IV speakers at a garage sale. The foam surrounds are toast - some of them are completely gone, and I originally planned to replace...