Hertz H 604

https://www.hertzaudiovideo.com/hpower-h604/

Data table
Channel mode 2 – 3 – 4
Output Power (RMS)
@ 14.4 VDC 4 Ch 110 W x 4 (4Ω)
3 Ch 105 W x 2 (4Ω) + 330 W x 1 (4Ω)
2 Ch 320 W x 2 (4Ω)
4 Ch 160 W x 4 (2Ω)
3 Ch 160 W (2Ω) + 310 W x 1 (4Ω)
Filters
Bypass
Hi-Pass
Lo-Pass
Band-Pass
Subsonic

Yes
50 ÷ 500 Hz
50 ÷ 500 Hz
Not available
Not available
Distortion – THD
(100Hz @ 4Ω) 0,04%
S/N Ratio
(A weighted @ 1V) 95
Damping factor
(100Hz @ 4Ω) 100
Size W x D x H
mm (in.) 223 x 51 x 365 (8.77 x 2.00 x 14.37)