I bought this wooofer from china. It has amp built it, costs me just 60 eur. It is heavy and looks quality made. Doesn’t looks much different than ESX for 200 eur.

Check out more in my video.


Features:
1.Fully functional and easy to debug
2.68 mm Slim fuselage, installed under the seat, the effect is better,
3.10 inch woofer speaker
4.Design of high temperature resistant coil
5.Black paint stainless steel mesh, no rust, no deformation

Description:
1.model: K-1003APR
2.Color:black
3.Max output power: 1000w / RMS:180W

Rated power: 600W
4.Normal impedance:4Ω
5.Voltage: 12V
6.Frequency range: 20-500Hz
7.SNR: >95db
8.THD: <0.4%
9.High level input sensitivity: 0.9v
10.Low level input sensitivity: 300mV
11.low pass filter:50-150Hz
12.bass boost: 0to+12db
13.Subsonic filter: 20Hz
14.Load: 40hm
15.Fuse rating: 25A
16.Subwoofer: 8”10”inch.4ohm
17.Dimensions: 345x260x68mm

Package included
1 x active subwoofer
1 x drive-by-wire
1 x Power cord
1 x grounding OFC wire
1 x Audio line
1 x Control line
1 x Subwoofer high level input line
1 x Installation package
1 x user manual