Suggest a preassembled amp board for cheap cheap computer speaker build?

I'm going to start off by saying that I am way out of my depth on this forum. I have no experience designing or building components from scratch. I do have enough practice soldering that I've been able to do a few DIY projects from kits. (made my own theremin back in the day, added a voltage regulating circuit to a little tube guitar amp, things like that.)

I've been reading about class D and class T amps and I'd like to try to put together a little amp to power a pair of unused speakers to use in my garage workshop or maybe to replace the cheapo speakers I have hooked up to my computer. I like to do it on the cheap.

I have a 19V 3.4A power supply that I picked up for free.

I'm thinking I'll use something like this : [IMGHTTPSDEAD]https://search.disconnect.me/image?l=aHR0cHM6Ly9lbmNyeXB0ZWQtdGJuMi5nc3RhdGljLmNvbS9pbWFnZXM/cT10Ym46QU5kOUdjUllXWDNhMEpMakQ3dUVRVXVveDNmS1JzaVkxVUl4SWVMa0c2ZGJ0OXNIcENvOFZsOGN0Zw==[/IMGHTTPSDEAD] for a case. I throw away half a dozen of them at work each week.

The last piece of the puzzle is which board to get. I could potentially assemble it myself if there is a good kit, but I'd prefer to just get a preassembled board to wire up. I'd like for it to include a volume control.

I was thinking of boards based on TPA 3116, 3118, 3123 etc, but I just don't feel like I have enough knowledge 1)to choose the appropriate chip and 2) to choose a board that is made with parts of at least passable quality. I want cheap, but I don't want absolute junk. That said, if there's something that is very cheap and just needs to have a couple things added or swapped to make it better/more reliable, it's certainly within my ability level to make a couple little changes (if someone can instruct me what the appropriate changes might be.)

I appreciate any suggestions. Thanks!
 
Finished my first thingy. Happy with it! Sounds fine.


[IMGDEAD]https://lh3.googleusercontent.com/b9NEeXBqxi404eGBtrb_Bf97XmpXB_vjxr4Jj0VOfHc9kByW08nwUfQObySN_mVeM_Qu5QpAvYJYQ-564GrVeCIxcY63TJgqbQEQjLDxt81VRjpdgNeFvxkYVkmNXsKPqzXMmTYniL4oDSUQ1We-WV9uVEj9R0jVfBVbR1qBHP8iElaFrnk5rUIAhA6jlKp7_coQBf8WfND_e2TXH6DYY7IP-Y9KIDtIKTghCq_rrExWCd8NoFO3sqsYwst2o4qiJaUS562w7DoLpdL-lUygN6tfP7ax-gynUuBccRlyTsNAdFnpLYNQMmj5LEK7kVBr69iL_B-klt3aN45Dg3Awg6VjtZxUk3NGppoOgohKtQs8-9l2U6mraze8Z00MY3gzB87g-I04Q3a26daNwn1PxSS01_0Dw7uXZIEa7Od0gS5PvrjouNKKfM4MD_2GfSKFZJeidZTSdpsLkGKiZSzixRmoC4zzbqeuRaCegodykgng1qc-6FYW0s59GPZXJoZuaV4hJh38rXRk4uGUc-eRIlxWkuFUbHl38s-UuOhFXTny4GeXyunn3AjIyn9NK_jFNO_I7A=w1615-h908-no[/IMGDEAD]

[IMGDEAD]https://lh3.googleusercontent.com/aDKyv5k3Zkly6sbgbsHXaascHpyiLQmaCw_hqnGs67s43wdUyapHt9fDbNuFuR3AyXmpu_8HgL2lJ_qtJIZWk2SrMfhv30EY5wdjz4jg49VJS-bJDF7akpyN4V1lQs7ujHyZoT5_c5fOKX_xpcfcT-SC7c5E8SXZrrskglHadkdHDgO_9JaFmiMjMcVl80qhZvj0xiLrp_Y_bJRKYo5HuZp6WO-QKKIgy5ofrGCYjPxIm8NQwtsCbTSoFZZTH8lutKktJMOq2gOeBIKu7Ugoe30qpqNMRu9_k5OVSd-r2cm-tD6RCcN4ISq0WVtyAKI7WbHmN-TOBshXLtVYxxe1ilfxVYaEVRbRSantfhdQX3px58FEvUr5yElANo7lIgWXcW9fPhUn_5TunKFuyEbE7duZXTOwTMThiCniVVfsAXdbCHlJzQPmi9I6Tqj7KUOsLgacMuJtCbu11OXHINm8sb_-wjWZH-b2An57UrJrzOaKrZtjg72VmMoDJ3B7TPOsGRqd_ovbgYP3DoWEYKNaFNEozakoFxY-KHJPte0bwcXhQzSmmss6B-_Pyu3pB7Vs6cHVQw=w1615-h908-no[/IMGDEAD]

[IMGDEAD]https://lh3.googleusercontent.com/lD8E3H85KhJVpiM2Cg89jZlk1AWvvuFuwbl6ucf4jO7rk_HmiNvETdO_KFP9fZ4PvcHLYa8G9ayAZnpppyOkEp3brTMBKxI3eVA9EKWoDPJlFy84zuv9Ueg4Byq9cLAxeybnG2Y2iFTDPa8GcpOK6OKFWfJFDGsr5wEXpzeTQg83022sIFWPU0ZnOGq-rwlCdpdFeKmeh6-HAkW3YGMbLO5fzLZ4eqXsTglfrgVWq0G0Xl7TpkjDdqzVqCRxJnRB2PW7wfh_rM2r36Iubs45SuSPeDVXn0Wghzx3240vkWYHHK9fhILArDhlIboHbxY092MZYH7vAk7kmtZ9ejrDzBFBMidZr3zf2NNpgS7pDZusSdXL9lOi5yWuYcBPJNcAdsA_EaaDyEeLB3PoqE326Doc6O9iTyZfmER83c2Nn0nG-mjpa1PMWtwAAIN-Kf0pyuCLpllJmq0ew58f22zzZSrl00OavDTlhgsk-71JZD4E34WJvUWoCsnZP0s0pfCEAHJ5N7PTrdKPCBCLRkeh0cm1RCqjga6xOaKuNh3etcGgRXUeegNEcEi8QQa_IQ1H5Q9HrA=w1615-h908-no[/IMGDEAD]