BK Electronics Monolith Plus - Downward firing 12 - 15Hz. Beats my REL to bits, reviewed 5* by what hifi. A genuine and decent UK built subwoofer. Recently serviced Great working condition. Needs to be collected locally. Grab a bargain.System Type: 95 Litre reflex tuned to 20Hz, cabinet manufactured from veneered 25mm MDF and Critically braced Distortion: 5% 102dB @ 20Hz Frequency Response at -3dB: 20Hz / In Room at 15Hz Amplifier Input / Output Impedance: High Level 100K - Low Level 10K - Balanced 10K Gain Control Range: 80dB Drive Unit Impedance: 4 Ohm Mains Input: 230V / 50Hz Dimensions: 420D X 604H x 540W Weight: 48.0kgTrue 500W continuous discrete Mosfet amplifier Truly hand built in Great Britain, when we claim hand built we mean hand built, as there are no SMD components or other automatic placement devices. Downward Firing 300mm (12) Continuously variable frequency control Audiophile grade toroidal transformers Gas Tight Neutrik connection for long term consistency of sound quality Separate controls for high and low-level input adjustment Simultaneous connection of high and low level sources Balanced Inputs Thermal Protection Anti Thump ASP automatic speaker protection audibly transparent driver protection 6 x 16A output devices for effortless current control IEC Power Socket Doubled flared port for reduced port noise

BK Electronics Monolith Plus - Downward firing 12 - 15Hz...

BK Electronics Monolith DF 300W Subwoofer Black. Great subwoofer from a proven UK brand. Selling only because I’m upgrading to Perlisten.

BK Electronics Monolith DF 300W Subwoofer White. In great condition. Comes complete with cables for both high and low level connections. It can be used directly from speaker connections on amps without a specific subwoofer connection or from a line level sub output. It has a downward firing driver for ease of placement and protection from damage. Original manual included. Collection only from Aberdeen. Payment in advance by PayPal only. You may organise your own courier, taking responsibilty from collection. Home Cinema Choice Best Buy rating.Adam Rayner concludes:-This subwoofer can be considered an outstanding buy - maybe even the best value for money currently in domestic electronics. It comes recommended, without caveat Description from BK website. Introduction:- Since we introduced the XLS200 our compact high power subwoofer, it has become apparent that there is a need for a budget high power, high SPL and low distortion subwoofer at a realistic price, with this in mind the Monolith was born. Designed from the speaker upwards the Monolith represents a significant saving in price vs performance and at a smidge over £400 we are offering a serious subwoofer. The Amplifier:- At the heart of the Monolith is our B.LAT Amplifier, starting its life in the original REL Studio and Stentor subwoofers this amplifier has been continously refined and now includes an array of features and controls not found on any other subwoofer in this price range. Controls include volume adjustment for both high and low level inputs, low pass frequency contour 40 to 120Hz and a continous phase adjustment. With all these functions avalible to hand the Monolith Plus amplifier will allow the end user varied connection options and ease of fine tuning. This amplifier is built here at our UK factory and is rated at 300W RMS and 600W RMS peak dynamic. Drive Unit:- A 300mm / 12 twin magnet drive unit to increase linear excursion, a cast basket for a solid uncoloured projection of sound without ringing and vented pole piece to help reduce power compression Specifications System Type: 95 Litre reflex tuned to 20Hz, cabinet manufactured from veneered 25mm MDF and Critically braced Distortion: 5% 102dB @ 20Hz Frequency Response at -3dB: 20Hz / In Room at 15Hz Amplifier Input / Output Impedance: High Level 100K - Low Level 10K - Balanced 10K Gain Control Range: 80dB Drive Unit Impedance: 4 Ohm Mains Input: 230V / 50Hz Dimensions: 420D X 604H x 540W Weight: 46.75kg True 300W continuos discrete Mosfet amplifierTruly hand built in Great Britain, when we claim hand built we mean hand built, as there are no SMD components or other automatic placement devices.Downward Firing 300mm (12)Continuously variable frequency controlAudiophile grade toroidal transformersGas Tight Neutrik connection for long term consistency of sound qualitySeparate controls for high and low-level input adjustmentSimultaneous connection of high and low level sourcesBalanced InputsThermal ProtectionAnti ThumpASP automatic speaker protection audibly transparent driver protection4 x 16A output devices for effortless current controlIEC Power SocketDoubled flared port for reduced port noise

Purchased not long ago and barely ever used, I originally got one then purchased another but the first one alone was so powerfull it hardly ever got used or even turned on for that matter. Condition is like new, please note its a heavy item. Retail on these have gone up and its now around £504 so you are getting a huge saving. I cannot describe the amount of base these things output its phenomenal and house shaking! comes with all cables. True 300W continuos discrete Mosfet amplifierTruly hand built in Great Britain, when we claim hand built we mean hand built, as there are no SMD components or other automatic placement devices.Downward Firing 300mm (12)Continuously variable frequency controlAudiophile grade toroidal transformersGas Tight Neutrik connection for long term consistency of sound qualitySeparate controls for high and low-level input adjustmentSimultaneous connection of high and low level sourcesBalanced InputsThermal ProtectionAnti ThumpASP automatic speaker protection audibly transparent driver protection4 x 16A output devices for effortless current controlIEC Power SocketDoubled flared port for reduced port noise

Bk monolith plus subwoofer front firing Mint condition Like new condition Mint , hardly used , just too big Comes in original box inserts manual and leads , i have this set up so you can here it£500 cash on collection 07983306129COLLECTION ONLY 48kgBanstead Surrey

Bk monolith plus subwoofer front firing Mint condition Like new condition Mint , hardly used , just too big Comes in original box inserts manual and leads , i have this set up so you can here it£500 cash on collection 07983306129COLLECTION ONLY 48kgBanstead Surrey

BK Monolith 300w Subwoofer. You are bidding a Monolith DF in Black Gloss This subwoofer is manufactured in the UK by B.K. Electronics and is an exceptional piece of AV kit. If you have not heard about the Monolith then visit www.avforums.com and search the The subwoofer comes supplied ,Set of M8 spike This sub is in storage and has very rarely been used, it has some swirl marks on the top which would polish out Other than that it is in excellent order Local pick up or you can arrange a courier at the buyers cost….it’s very heavy

Bk monolith plus subwoofer front firing Mint condition Like new condition Mint , hardly used , just too big Comes in original box inserts manual and leads , i have this set up so you can here it£500 cash on collection 07983306129COLLECTION ONLY 48kgBanstead Surrey

Bk monolith plus subwoofer front firing Mint condition Like new condition Mint , hardly used , just too big Comes in original box inserts manual and leads , i have this set up so you can here it£500 cash on collection 07983306129COLLECTION ONLY 48kgBanstead Surrey

BK Monolith DF Subwoofer - Black Ash - Excellent sub with huge performance! Here we have a BK Monolith-DF subwoofer in black ash. Owned by myself since new, it has sat much loved but seldom used in my home cinema. Its in excellent condition with only a couple of minor imperfections in the finish, no big scratches, no big chips. Please examine the photos and see for yourself. Functionally it is perfect, the cone is pristine, it performs and sounds as good as new. Included is the sub, an unusued high level lead, low level (RCA) lead, a long power cord and the owners manual. The original box is available also, along with the small pallet on which it was delivered. This is about as good as home cinema subwoofers get. Its absolute overkill for most rooms, being able to hit hard and low. I absolutely love it and if I wasnt emigrating I would keep it. Ive already tried to persuade family members that they need it in their lives but theyre not appreciative of such things! I think most people are aware of how good these are but if not please have look online. To even get close to the performance of one of these youd need to spend an awful lot more money. BK currently sells this model for £504.95. It has since been supplanted as their top amp by the Monolith Plus and I know that they will sell you the parts to upgrade this to Plus spec if for some insane reason you need more power! Regarding the original packaging. This item was boxed and bound on its own little pallet so that it could be manoevered via trolley jack. I have all the packaging and you can have it if you want it but I wont repack the sub as it is much easier to lift and handle as is. This item weighs 40kg+. It is for COLLECTION ONLY but I will help you carry it to your vehicle. Best wishes

Bk monolith plus subwoofer front firing Mint condition Like new condition Mint , hardly used , just too big Comes in original box inserts manual and leads , i have this set up so you can here it£500 cash on collection 07983306129COLLECTION ONLY 48kgBanstead Surrey