盲試，或精調。前者在超市買個幾十刀的試試，也許能用；後者需技師測音損、調音頻，大約要幾千刀。

看看這個

https://www.amazon.com/dp/B0BR5YVM91/ref=sspa_dk_detail_3?pd_rd_i=B0BR5YVM91&pd_rd_w=iGGF3&content-id=amzn1.sym.f734d1a2-0bf9-4a26-ad34-2e1b969a5a75&pf_rd_p=f734d1a2-0bf9-4a26-ad34-2e1b969a5a75&pf_rd_r=MSYHRYQZDARH27RWGD8W&pd_rd_wg=Eky69&pd_rd_r=6bb0a683-3a6e-4046-a3fb-182461da99ab&s=hpc&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWw&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyRlM3TkE5Q1pFSllVJmVuY3J5cHRlZElkPUEwODgzNTY4MzJFTFY2OFJQR1FWTCZlbmNyeXB0ZWRBZElkPUEwNzUyMDk1MTZETlI2NzM1WkxSUyZ3aWRnZXROYW1lPXNwX2RldGFpbCZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1

 

這個用戶評價很好

https://www.amazon.com/dp/B0BWJ551WK/ref=sspa_dk_detail_4?pd_rd_i=B0BWJ551WK&pd_rd_w=67skv&content-id=amzn1.sym.89ee1d2e-380f-4a05-89e5-d22eb0a17762&pf_rd_p=89ee1d2e-380f-4a05-89e5-d22eb0a17762&pf_rd_r=316HADPBMC0KTNXMFF5Z&pd_rd_wg=iQXz5&pd_rd_r=977456cf-3900-4772-a563-f2709fc5b6ad&s=hpc&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyVlNQWkhHWVhLWEs0JmVuY3J5cHRlZElkPUEwNDgzNjYwMk5EREJLS0xUNjBSMyZlbmNyeXB0ZWRBZElkPUEwMjU4OTc1MUMyUUVESkMwUzJSVCZ3aWRnZXROYW1lPXNwX2RldGFpbF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1