AIYIMA B2D2205 - can someone identify the type of connectors?

Hey!

I'm trying to figure what kind of connectors I need to purchase for the signal section of this AIYIMA board:

https://www.aiyima.com/products/amplifier-board-aiyima-b2d2205-tpa3255-4ch-315w-power-amplifier

1_57703838-3e68-4296-9acb-82bc4899e9e5_1024x1024.jpg



Can anyone help? From what I gather it seems like some sort of "JST XH" connector? But no idea which size...
 
Last edited:
Curious as to your experience with this board and if you used SE or Balanced inputs? What type of project did you implement this into?

I've just bought two of these, for use in an 8ch stereo (L+R drivers each have own amplifier)

I've added 8x mono NE5532 unbalanced to balanced converters ($5ea on ebay/aliexpress), so Amplifier can utilise the differential inputs.

And the separation is going to be done by 4 x ADAU1701 DSP's, as an active crossover, which will sit after the DAC and before the amps.

I'll mainly be streaming music through USB (SMSL D6 DAC) or LDAC Bluetooth.

None of this has arrived yet (except existing PC and DAC connected to a Fosi Audio BT30D Pro), so the design is mostly in my head with a few drawings. Unsure if off the shelf Chinese parts will play together or not?

PC Source -> SMSL DAC -> L/R input into master ADAU1701 (I2C connected slaves x 3) -> DSP output to Bal Conv. -> 2 x 4ch TPA3255 amp -> 2 x 3 way + sub

Speakers are yet to be designed an built, which will be another 3-6 month project in itself.
 
I've only gotten to do a quick test with it running SE connections. Sounded great (I'm not picky with amps though), but gets quite hot. I wanted to make a plate amp with it, and it will probably work but you'll have to mount the existing heatsink to an aluminium plate and an external heatsink I reckon.
 
yes, i'll br running both amps at 36v (600w PSU), as the Fosi I have (2.1 using 2x TPA3255), gets slightly warm running at 32v 5a, yet to test at 36v (i'll be using boost converter for this, not a power brick). I realise the TPA3255 get super hot at 48v, not only do I not need that amount of output to the speakers, I want to have the amps not go up in smoke on me.

I cancelled the order for the NE5532 balanced outputs and reordered DRV134 units (TI Burr Brown chips)