Speaker Related Projects

  Can-Less
(A computer speaker; redux. December-2005)

  Can-Can
(A computer speaker in a light canister. Jan-2005)

  Shiva_PR15
(A powered subwoofer using a 12" driver and 15" passive radiator. Work in progress. Aug-2003)

  Sonosub
(10" vented subwoofer in a cardboard tube, powered by a Parapix amp. May-1999)

  MTM Center Channel Speaker
(A Madisound design. Nov-1997)

  2-way Surround Speakers
(5" woofer and 1" tweeter. July 1997)

  3-piece mini system
(6" DVC bass module mated to 4" car speaker. June 1997)

  3-way Vented Floorstanding Speaker
(vented 10" woofer, 5" mid and 1" tweeter in a 4 ft tower. Summer 1995)

  NHT1259 Subwoofer
(A 12" woofer in a sealed architectural pedestal. Winter 1994-95)

  Inexpensive Speaker Stands
(Particle board, sand and spray paint. Fall 1994)

  2-way satellite
(6.5" woofer and 1" tweeter. Summer/Fall 1994)


Electronics Related Projects

  A PC-based Audio Console
(Use a PC to play tunes. Work in Progress. Feb-2004)

 LM-12 Amp
(Bridged LM-12 opamps. Aug-2003)

  CeeDeePee
(A CD player and FM tuner from spare computer parts. Oct-2002)

  Quad 2000 4-Channel Amp
(Premade modules by Marantz. May-1998)

  Zen Amp and Bride of Zen Preamp
(by Nelson Pass. Apr-1997)

 

Articles

  Backing-up LPs to CD-R
(Whiningdog.net 10-Dec-2002)

 Using Wood in Speakers FAQ
(Work in progress)

  MDF FAQ for speaker builders

  Woodworking Tools for the DYIer
(HomeTheaterHiFi.com Oct-1998)

 Some Thoughts on Cabinet Finished for DIY Speakers

  Large Grills Made Easy

  Some Parts Suppliers
(Outdated)

 

Other Useful Stuff

  DIY Audio Related URLs

 Veneering Primer
(by Keith Lahteine)

  How to get a Black Piano Finish
(by DYI Loudspeaker List members)

  Sonotube FAQ
(by Gordon McGill)

  Excerpts from the Bass List
(Oldies but Goodies)

 

DIY Loudspeaker List

  Current DIY Loudspeaker Forum Home

  Former DIY Loudspeaker List Subscription Page

  DIY Loudspeaker List Archives

 

NHT1259 Subwoofer

This subwoofer is fundamentally very simple. It consists of a 2.7+ cu. ft. sealed box housing a 12 inch woofer. The driver used is the NHT1259, currently available from Madisound

I decided to build two subs. Due to the size of the enclosure, SAF became a potential problem :) and of course two subs means twice as much SAF ! Coming to my rescue was a furniture showroom catalog I came across while on business in the Seattle suburbs. My wife liked the antique pedestals in the catalog pictures and agreed that subs of similar looks and function would be a great addition to the room.

Here are pictures of the two resulting subs using the NHT1259 driver. Different cameras were used thus the colors vary.

(14,301 bytes) This is the first sub serving as a pedestal for a phone and answering machine.

(11,361 bytes) This is the second sub.

(39,945 bytes) This is another view of the second sub in the far corner of the room now flanked by 2 couches.

(14,313 bytes) This picture of the first sub has the most accurate colors (assuming "normal" monitor brightness, contrast, gamma and TrueColor graphics).

The resulting sound is most impressive. The subs have incredible punch, and have usable output in the mid 20's. The sound is not boomy and does not have the "windy" sound often found on commercial bandpass units with undersized woofers.

Cost was kept to a minimum by using scrap and recycled materials from a local surplus store. Each unit, including the driver, cost about $175. The superb quality of the driver, the simplicity of the box, and the relatively inexpensive materials makes a 1259 based sub the best sub value around. It is an ideal DIYers project.

29-September-2000


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