Building 2.1 Audio

[Guerilla]

Buying a set of active speaker with bluetooth 5,3 will give you max Bang for the bucks.
Cheers

 

[au.windroid]

2.1 amplifier board. | Page 2 | diyAudio
Someone reviewed it here, with measurements.
TL;DR: it's not great. I also do not recommend Wuzhi-style amps (black-plated amps with silver knobs). They have many issues.
For the best 2.1 experience, you should use a dedicated 2.0 amp with line out and hook it up with a subwoofer amp, one that has a bass frequency knob (look for "Mono TPA3116" or TPA 3xxx chipset of your choosing).
Here's another choice, a "subwoofer preamp":
PRO1 JRC2068 HIFI Front Tone Board Stereo High Subwoofer Operational amplifier AMP Volume Controller Treble Bass preamp - AliExpress
They can be used with the ZK-3002 TPA3255 boards, or whatever amp that you like.

Thank you dear for your reply. I also want to connect blue tooth module to this PRO 1 board you mentioned.

https://www.aliexpress.com/item/1005005539228194.html
NO amplifier

 

[Karlsonate]

Cheap BT is something you don't want to deal with, trust me.
ZK-QCC QCC5125 QCC3034 Bluetooth 5.1 lossless decoder board APTX LDAC audiophile grade - AliExpress
At least something like this, it's based on Qualcomm chipsets and supports latest codecs.

 

[Guerilla]

^ I agree. LDAC and aptx HD are nice. Ordinary aptX distorts as I understand. Really nice board for the price.
Cheers

 

[Guerilla]

For stereo speakers consider Cornu Spiral which you can find here in fullrange? Subforum. Those dont require crossover. Fullrange speakers without crossover is the only type of diy speakers that can compete with commercial active monitors priceraise.
Cheers

 

[bonnzifier]

I don't how much is your budget, I would recommend "wuzhi zk as21p" and replace bluetooth with "qcc5125 + single or dual es9038q2m". Sound is excellent without much modification.