It's based off recommendations from the ssf FB group. exciters: Dayton Audio DAEX25 Sound Exciter Pair https://www.amazon.com/dp/B001EYEM8C/ref=cm_sw_r_cp_api_i_EBMPEbQEHRBCV

Extenral 7.1 soundcard: StarTech.com 7.1 USB Sound Card - External Sound Card for Laptop with SPDIF Digital Audio - Sound Card for PC - Silver (ICUSBAUDIO7D) https://www.amazon.com/dp/B002LM0U2S/ref=cm_sw_r_cp_api_i_2BMPEbCMWGMKB

No that all sounds good. I suggest the same USB sound card I bought off Amazon.

https://www.amazon.com/StarTech-com-7-1-USB-Sound-Card/dp/B002LM0U2S/ref=mp_s_a_1_17?crid=H0JJODVU5OHT&keywords=usb+sound+card&qid=1674441055&sprefix=USB+spund%2Caps%2C162&sr=8-17

https://smile.amazon.com/StarTech-com-7-1-USB-Sound-Card/dp/B002LM0U2S/

I haven’t used this equipment so I can fully endorse it but something like this might work. The external audio card can output 6 channels of audio and the amp can accept and pass through 6 audio channels at once.

StarTech.com 7.1 USB Sound Card - External Sound Card for Laptop with SPDIF Digital Audio - Sound Card for PC - Silver (ICUSBAUDIO7D) https://www.amazon.com/dp/B002LM0U2S/ref=cm_sw_r_cp_api_glt_fabc_Y5S94V7RKE2BM4CRXJ39?psc=1

Pyle 6-Channel Audio Marine Amplifier - Compact Power 600 Watt RMS 4 OHM Full Range Stereo with Volume Bass Treble Rotary Control - Wireless Bluetooth Receiver Speaker & LCD Digital Screen PFMRA640BB https://www.amazon.com/dp/B075RZQ6RQ/ref=cm_sw_r_cp_api_glt_fabc_S2J7PDY0NTW1QGJ2Z7EG