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Old 29th October 2004, 04:02 PM   #21
markp is offline markp  United States
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Actually it is on the order of 4 times the power, not twice. A bridged amp produces twice the voltage which means 4 times the power but the load each amp sees is half the impedence so use 8 ohm speakers not lower or the amp will think its driving a sub-4ohm load.
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Old 29th October 2004, 05:23 PM   #22
troystg is online now troystg  United States
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Thanks Mark-

And hopefully he is using multiple chips per "phase or side".
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Old 10th November 2004, 11:30 AM   #23
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so if i wanted to use a 4ohm load would i need to use another 2amps bridged the same way then parralle them?
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Old 10th November 2004, 01:15 PM   #24
ble0t is offline ble0t  United States
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Pretty much....you'd need a parallel-bridged configuration...there are a bunch of posts concerning in here in the 'Chips Amps' section
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Old 11th November 2004, 04:12 AM   #25
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Looks good! Let us know how it is all working
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Old 11th November 2004, 11:35 PM   #26
digi01 is offline digi01  China
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thank you I am assembling it now.each module is ready

pic,
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Old 11th November 2004, 11:48 PM   #27
digi01 is offline digi01  China
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Finally, I find a suitable chassis(factory OEM).
it has enough room for setting up different designs
I am interested in several following results:
1,3886igc/3875nigc/4780 with unregulator psu
2,3886igc/3875nigc/4780 with regulator psu
3,3875nigc with BLD
4,3886igc/4780 with BLD,bridging work


BTW,thanks BranGT,he has offered two 3875 and 4780 to help me to test.

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Old 12th November 2004, 03:17 AM   #28
troystg is online now troystg  United States
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Hey digi01-

Sweet. Looking really nice.
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Old 12th November 2004, 03:48 AM   #29
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that is nice looking! where did you score that chassis btw?
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Old 12th November 2004, 05:49 AM   #30
digi01 is offline digi01  China
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I buy it from a elec-shop in BEIJING.
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