I been thinking: what if I buy a transporter for my main stereo and reassign the SBs to the bedroom(1) / kitchen(2) what would these compact systems look like?
So I moved my SB to the bedroom and did run some tests using three different sets of powered computer speakers: - Cheap $15 Altec Lansing 3 full range (few years old) bearable only at low volumes. - Cheap $15 Harman Kardon 3 full range (few years old) I could not recognize some of the instruments trash - Altec Lansing VS2321 2.1 Speaker $40. These sound quite good (for the price) but somewhat bulky due to the subwoofer third box. The additional problems with these speakers (typical of most PC speakers) are: bright LED and lack the auto power on feature (based on line IN signal from the SB). Being into active speaker DIY I could not stop myself from concocting a DIY solution to my ideal SB3 small system. I come out with these project requirements: - High quality sound (of course). - Auto power on and/or low standby consumption - No LED (thats an easy one) - Decent dynamic power - Good equalization at any volume (ability to enhance the low frequencies at low volume) - Possibly use off the shelf components. - Compact - make it look good - Keep the $ reasonable The result is this: - Speakers configuration: DIY two way stereo compact speakers, bi-amp - $ 75 Amps: 2 x SONIC IMPACT 5066 http://www.partsexpress.com/pe/showdetl.cfm?Partnumber=300-952 - $54 Mid-Woofer: 2 x DAYTON RS125-4 5" REFERENCE SERIES WOOFER 4 OHM SPL: 91 dB, http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=295-370 - $46 Tweeter: 2 x TANG BAND 28-847SA SHIELDED NEODYMIUM 1 silk dome http://www.partsexpress.com/pe/pshowdetl.cfm?PartNumber=264-822&raid=46&rak=264-822 - $120 Electronic crossover: DBX 223 stereo 2 way crossover Linkwitz-Riley 24dB/octave - $30 Power Supply 12 volt / 4 amp http://www.powerstream.com/ac-1245.htm - $100 misc. Total: > $500 plus time The two sonic impact PCB, DBX crossover PCB and related power supplies would be housed in a new enclosure. The power can be left always on thanks to the high efficiency of the Tripath. Expected system consumption at rest: 15 - 20W (a little high implement the auto power on feature?) The high efficiency mid woofer and bi-amping configuration will provide an effective power equivalent to 30 real watts per channel on average speakers. The DBX crossover will provide the ability to adjust gains for each driver (sort of a loudness, coarse EQ), and overall gain (to solve the famous SB volume control issue). If the tripath chip is as good as they say this may indeed be an interesting project. -- arge ------------------------------------------------------------------------ arge's Profile: http://forums.slimdevices.com/member.php?userid=6155 View this thread: http://forums.slimdevices.com/showthread.php?t=30087 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
