B&W (Bowers & Wilkins)ASW-4000usedB&W (Bowers & Wilkins) ASW-4000 Massive 15" Sub  450WImpressive 15" 450 Watt subwoofer in cherry finish. A perfect match for you 800 series speakers. A few scratches here and there but perfect working condition. Pickup in Ridgewood, NJ or NYC. Will...1299.00

B&W (Bowers & Wilkins) ASW-4000 Massive 15" Sub 450W [Expired]

no longer for sale

Impressive 15" 450 Watt subwoofer in cherry finish.  A perfect match for you 800 series speakers. A few scratches here and there but perfect working condition. 

Pickup in Ridgewood, NJ or NYC.  Will deliver 20 miles of 07450 but would need help unloading as this monster weighs 75kg. 

Also willing to strap it to a pallet but you'd have to arrange pickup. 


Active vented-box subwoofer 
Drive units 
One 380mm (15 in) dia long throw with magnetic shielding 
System frequency response 
±3dB 17Hz - 40 / 140Hz adjustable (Line In) 
±3dB 17Hz - 250Hz (Decoder In, EQ at ‘B’) 
±3dB 24Hz - 250Hz (Decoder In, EQ at ‘A’)

Amplifier : 
Power output 450W continuous 
Input impedance 22kW 
Sensitivity 88dB spl at 1m for 100mV input 
(Decoder input, level set to centre detent position) 
Signal/Noise 90dB

Line input level 
Decoder input level 
Decoder input equalisation 
Phase 0/180

Inputs : 
Line In (RCA Phono) 
Decoder In (RCA Phono) 
Speaker Level In (Binding Posts)

Outputs : 
Line Out (RCA Phono, h-p filtered) 
Link Out (RCA Phono) 
Speaker Level Out (Binding Posts, h-p filtered) 
Low-Pass Filter 
Active 4th-order variable cut-off 40Hz - 140Hz (Line In) 
fixed cut-off 250Hz 
High-Pass Filter 
Line Level active 3rd-order at 80Hz 
Speaker Level passive 1st-order at 80Hz into 8W resistor 
(Response using speaker level connections 
dependent on satellite impedance) 
Internal Volume 
100 litres (3.6 cu ft)

Height: 580mm (22.8 in)

Width: 610mm (24 in)

Depth: 580mm (22.8 in))

Net Weight 
75kg (165 lb)

Cabinet: Real wood veneers of Cherrywood 
Grille: Black cloth


Skyfi.nyc is a small startup business specializing in the purchase, reconditioning and reselling of select high end audio equipment.  We only buy equipment the we admire and are passionate about.  No mid-fi, no gimmicks and no junk.  

Each piece of equipment is cosmetically restored and fully tested in our well-equipped lab by an engineer with 30+ years of experience in the Hifi world.  If it does not meet or exceed the original manufactures specifications, it will not be sold.  We are select about the equipment we purchase, focusing on mostly analog, high-build quality, American and European built units.

Through our sister company, which is an authorized dealer for McIntosh, Audio Research, Sonus Faber, ClearAudio, Project and Sony ES, we have access to OEM parts and service support.  If you are local and are looking for any new equipment for the above mentioned manufacturers, please drop us a line as we can arrange both sales and professional installation in the tri-state area


If you would like to make an offer, please don't email or message us unless you are looking to trade something in.  

If we are accepting offers, you will see a button on the listing page to do so.  Please use it, as it is very hard to track offers through email or messaging.  This way, we are all also better protected.   


We prefer working through PayPal, which allows you to use a credit card or bank transfer.  We do not charge extra for any payment fees.  You can also send us a personal check (which will need to clear before shipping), certified check, money order or wire transfer.  International clients without access to PayPal should use a bank wire transfer. 


We accept trade-ins of equal or lesser value under certain conditions.  Simply ask and let us know the exact model, condition and what accessories are included such as a box, remote, manual, etc.  We will only consider high-end equipment from mainstream manufacturers such as McIntosh, Mark Levinson, Audio Research, Krell, etc. and will typically pass on displays, projectors, receivers, dated processors and mid-fi equipment of any type.  We will offer a fair value for your equipment, but keep in mind we are running a business and will need to be able to sell the equipment at a profit after investing a great deal of time and resources in testing, certifying, repairing, cleaning and packaging the incoming equipment.  If you are looking for top dollar we suggest attempting to sell it directly to an end user.  

SELL US YOUR GEAR (Working or Broken)

We will also purchase your used or broken gear and arrange pickup if you are in our local market.  Just drop us a note for a quote, but be sure to include the condition and what is included.  


We are currently operating from a residence in Ridgewood, NJ.  You are welcome to make an appointment if there is a piece of equipment you would like to see in operation before or after purchase.  We have a well-equipped, dedicated listening room with tons of equipment of all makes and models.  We are not a store, so please don’t make an appointment if you are just curious as to how a speaker or piece of equipment sounds.  In essence, no tire kickers please.  

If you are in NYC and cannot make it out to Ridgewood, we can arrange pickup in Union Square (14th Street) after the purchase.   You can call or text  (646) 852-2073 with any questions or to schedule an appointment.  We can also arrange to install, calibrate and tune the gear in your listening room if you are in the local area.  This is super useful when purchasing large speakers or heavy amplifiers.  It is also great for ensuring your new turntable is setup correctly in its final resting place.  

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Thanks for looking and please send us your email address if you would like to receive a list of the equipment we receive from time to time.  We promise not to bombard you with junk email.  

skyfi member since January 2012

skyfi.nyc  Verified Dealer
Last 12 months
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