Fully functional, one non-Bose slider knob (see pics)

Fully functional, one non-Bose slider knob (see pics)

Bose 901 active equalizers 100% working condition

I bought this as a back up and am downsizing. It was purchased unopened and I used it briefly before putting it away. I have series VI but prefer the (in my opinion) somewhat warmer sound of series III and IV, and it made my series VI sound sweet). The story behind IV B is they only made a very limited number of them as Series IV was being replaced by Series V. I was able to find on line from Bose that the series IV eq supply was used up and they had to utilize series V chassis, parts and cases to make this eq to have the correct series III and IV curve. The best part of it was Bose began to make the equalizers so much better at this time (1983 for this one, the beginning of the series V era) with much better quality everything. It would be a challenge to find a nicer one that this, if you could find one at all! This has some insignificant marks on the case, stains on the box and is really very nice. It sounds warm and wonderful as it should. Don't miss it! Best one you’ll likely ever see!

This is a Bose Series lll Active Equalizer and it is in excellent condition. International buyers, please note:This item ships worldwide. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick up the item. Do not confuse them for additional shipping charges. US and international government regulations prohibit us from marking items under actual value or as “gifts”. Please be aware that if you return the item for a refund, the customs charges are not refunded to you. Thank you for your attention

Vintage Bose 901 Series IV Active Equalizer for Series III and IV LoudspeakersBose 901 Series IV Active EqualizerFor use exclusively with Bose 901 Series III and IV LoudspeakersInput: 110-120V AC 60HzSerial: 268178Cabinet construction: Genuine walnut veneer laminated to particle boardItem is used and tested in excellent working condition. There are very few very small marks to the top and side veneers, and there are no major cracks or gouges. There are a few light scratches in the aluminum top and face. The cord is free of any kinks or cuts. Includes only items pictured. Please view photos for more detail.Thank you 101323NSEJ-F1

Bose 901 Series IV B Equalize! I bought this as a back up and am downsizing. It was purchased unopened and I used it briefly before putting it away. I have series VI but prefer the (in my opinion) somewhat warmer sound of series III and IV, and it made my series VI sound sweet). The story behind IV B is they only made a very limited number of them as Series IV was being replaced by Series V. I was able to find on line from Bose that the series IV eq supply was used up and they had to utilize series V chassis, parts and cases to make this eq to have the correct series III and IV curve. The best part of it was Bose began to make the equalizers so much better at this time (1983 for this one, the beginning of the series V era) with much better quality everything. It would be a challenge to find a nicer one that this, if you could find one at all! This has some insignificant marks on the case, stains on the box and is really very nice. It sounds warm and wonderful as it should. Dont miss it! Best one you’ll likely ever see!

This vintage Bose 901 Series IV active equalizer is a rare find for any audiophile. With its sleek brown exterior, it adds a touch of sophistication to any home audio setup. Designed specifically for use with Bose 901 Series IV speakers, it delivers unmatched sound quality and clarity. The equalizer has been well-maintained by its previous owner, ensuring its excellent working condition. Its brand, Bose, is renowned for producing top-of-the-line audio equipment, and this equalizer is no exception. Add this piece to your collection and take your listening experience to the next level. Item is used and does show some ware but overall still displays great and works as you can see the power is lit up. If you have any questions please let ask me or refer to the pictures as everything is sold as is. Before you go check out my other listings. Thanks for stopping by.

I bought this as a back up and am downsizing. It was purchased unopened and I used it briefly before putting it away. I have series VI but prefer the (in my opinion) somewhat warmer sound of series III and IV, and it made my series VI sound sweet). The story behind IV B is they only made a very limited number of them as Series IV was being replaced by Series V. I was able to find on line from Bose that the series IV eq supply was used up and they had to utilize series V chassis, parts and cases to make this eq to have the correct series III and IV curve. The best part of it was Bose began to make the equalizers so much better at this time (1983 for this one, the beginning of the series V era) with much better quality everything. It would be a challenge to find a nicer one that this, if you could find one at all! This has some insignificant marks on the case and is really very nice. It sounds warm and wonderful as it should. Dont miss it!

GOOD CONDITION PHYSICALLY. LOOKING FOR A SPECIFIC CONSUMER ELECTRONICS OWNERS MANUAL OR SERVICE MANUAL? WE HAVE THOUSANDS... JUST ASK... ALL ORIGINAL! McIntosh... Denon... Marantz... Harman Kardon... Crown... JBL... SONY... Citation... Carver...Counterpoint...Fisher... Hafler...Kenwood... Lexicon... Nakamichi... Pioneer... just to name a few!

This unit is working, both channels nice and clean, perfect for series III or IV which I read share the same EQ curve, I just listened to an hour plus of Charlie Parker, Milt Jackson, Ellington and more and it sounded just great. I am a 901 owner myself (Series I and Series VI ver 2) and ran it on my own system. This made my system sound wonderful and despite what Bose may have put out in the past, you can absolutely tailor your own system with any series EQ you wish because although there are subtle differences, frankly they all sound great. This eq seems to have a slightly warmer sound than my series VI eq. If I were to keep it I would have the caps redone just because of the age, but it is working right now. This is listed as parts / not working because I cannot guarantee it and it is sold as is. If you have 901s this is what you need to make them sing. DHS speaker on ebay services these and for a small amount they end up as good as new if not better. The wood cabinet I feel is better than typical w/ some minor corner damage dings etc - not too much but just so you know. The aluminum face has more dings and rubs, but its clean and looks ok. Please see the pics. Ask questions please or ask for before pics before buying. Im auditioning it as I write this and its very nice, currently some later Johnny Cash, very clean sounding. If you have series III or IV in particular this is what youre looking for. These go high so bear in mind.... this will not last,,

Bose 901 Series III Active Equalizer Vintage - Plugged in and the light on the front goes on - slider controls are easy to move. Selling as parts only. There is some oxidation on the aluminum that you can see on the corner and top.

Bose 901 Series III Active Equalizer Vintage - Plugged in and the light on the front goes on - slider controls are easy to move. Selling as parts only. There is some oxidation on the aluminum that you can see on the corner and top.

Bose 901 Series III Active Equalizer Vintage *LOOK. Check photos for condition.

This item is in good pre owned condition. Works as it should. Comes just as pictured with exactly what you see pictured. Please view all photos before purchasing or making an offer. Keep in mind if you make an offer, there is 48 hours to answer and it can be purchased at full asking price over you in that time. Also, please note that all items I sell are marked with special symbol in invisible ink to protect me from false returns. This helps ensure a better and more trustworthy buying process for both the seller and buyer, as I do offer returns as you can see! This does not at all effect any item and you will not notice it. If you have any questions please message me. When it comes to international sales, items are shipped using the eBay global shipping program. Any items that are damaged in shipment or arrive damaged and not working for international buyer you need to contact eBay and ask for the global shipping program and let them know. Thank you! Don't miss a great deal! :) Thank you! Have a great day! Select your shipping method at checkout

Bose 901 Series III 3 Active Equalizer Vintage eu electrical outlet. Y able to test as this has the European outlet plug Appears in good condition as shown

Vintage BOSE 901 Series iii Active EQ, working, but missing a slider knob. Otherwise nice condition. Priced accordingly. Fedex Home Delivery, USA only w/tracking. As is, no returns. Thanks for looking!

Vintage Bose 901 Series III 3 Active Equalizer - it powers on but it was not fully tested. Sold As Is. Visually it comes with some scratches and few dings, wood splits on edges, but clean. Sorry no international shipping. (2.4)