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Chip Amps Amplifiers based on integrated circuits

tda1554 using amp as preamp?
tda1554 using amp as preamp?
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Old 29th April 2011, 06:28 AM   #1
PeteMcK is offline PeteMcK
diyAudio Member
Join Date: Feb 2002
Location: Western Sydney
Default tda1554 using amp as preamp?

I have a bunch of these Quad amp chips, I was thinking of making a guitar practise amp using a pair of the amps BTL, and the other two amps as preamp stages - these have fixed 20dB gain. Anything I should take into account before I try this?
Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
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