47 Treasure Model 0347 - diyAudio
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Old 20th February 2012, 05:14 AM   #1
vkung is offline vkung  Canada
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Join Date: May 2005
Location: Vancouver BC Canada
Default 47 Treasure Model 0347

47 Laboratory /47 Treasure
Model 0347 All discrete stereo power amp (DIY Kit)
Only the simplest can accommodate the most complex.

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Features
All discrete design
Current feedback high slew-rate op-amp design
Sziklai pair construction (Complementary Darlington)
Use lw pass filter to block radio frequency interference
Max. output power 40W (4Ω) / 30W (8Ω)

Power supply: AC100-120V, 200-240V
Input : RCA pin jack system x1(unbalnced)
Filter : equipped with RFI filter (radio frequency interference)
Impedance : 50kΩ (fixed)
Input sensitivity : 0.775VRMS (30W, maximum output when 8Ω)
Residual noise: below the detection limit
Amplifier gain: 31dB (approximately 35 times the voltage gain)
Frequency response: 5Hz ~ 120kHz (within-3dB)
Output terminal: speaker terminal
Maximum output power: 40W (4Ω) / 30W (8Ω)
DC output voltage: Less than 10mV (DC zero adjustment function)
Size: W250 x H60 x D175mm
Weight: 2.7kg (without power cable)
Accessories: power cable for AC inlet

PDF format assembly manual and technical information (CD-ROM included)

Nice photos from rjm
http://www.diyaudio.com/forums/blogs..._3005-1280.jpg

http://www.diyaudio.com/forums/blogs..._2991-1280.jpg

http://www.diyaudio.com/forums/blogs..._2991-1280.jpg

http://www.diyaudio.com/forums/blogs..._3007-1280.jpg

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Last edited by vkung; 23rd February 2012 at 03:54 PM.
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