Longtime lurker first time poster here.
I have been using this excellent TPA3221 board for some time now to drive a pair of NHT 1.5 bookshelf speakers, and I recently got a 2nd board in hopes of trying dual mono operation to get more power to these not terribly efficient speakers:
Unfortunately these boards come without documentation of any kind. Does anyone know how to hook this board up for mono PBTL configuration, and do you also know how to select a different input gain? This board has been a nice sonic upgrade from the various TPA3116 boards I've used, and I would like to optimize its performance.
Thank you in advance!
I have been using this excellent TPA3221 board for some time now to drive a pair of NHT 1.5 bookshelf speakers, and I recently got a 2nd board in hopes of trying dual mono operation to get more power to these not terribly efficient speakers:
Unfortunately these boards come without documentation of any kind. Does anyone know how to hook this board up for mono PBTL configuration, and do you also know how to select a different input gain? This board has been a nice sonic upgrade from the various TPA3116 boards I've used, and I would like to optimize its performance.
Thank you in advance!
@FauxFrench I believe you have this same TPA3221 board — do you have any info RE changing input gain and putting it into mono PBTL mode? Thank you.
“Did you hear what JJ did at the meeting this morning?”
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”Good man. See you at the “Does the 7492 utterly annihilate the IRS4414 when powered by a Meanwell?” symposium.”
”It’s all everyone’s talking about! i mean, sheesh, read the room, man.”
”I don’t know what got into him. Who asks a reasonable question on a forum devoted to guys asking how they can get a kilowatt out of a $5 TPA3118 board by daisy-chaining six thousand lithium batteries in series for the supply?! What on Earth was he thinking?”
“Yeah, like, The Well from 1995’s calling and it wants its Birkenstocks back!”
“I don’t get the reference. I’m either a teenager who calls four-year old chips “old and busted” or a middle-aged guy on a quest to get his wife to divorce him for tinkering with Alibaba junk instead of paying attention to her.”
”I just meant he’s obviously clueless about what we do here. He should probably leave before he embarrasses himself even further.”
”You said it. Welp, breaktime’s over. Better head back to the cube and destroy a few more amp boards by poking around with a metal screwdriver while they’re plugged in.”
”Good man. See you at the “Does the 7492 utterly annihilate the IRS4414 when powered by a Meanwell?” symposium.”
