Rockville RV8.2A Single 8" Bass Enclosure System With matching Mono Block Amplifier. This system includes a top of the line ported enclosure which gives you more punchy and better sounding bass. The vents were strategically placed on the bottom of the enclosure and then the enclosure is placed at a 15 degree angle to fire the bass out hard and give you amazing sound quality.
eBay
Upgraded Version Mono 400W Tube 2SC5200 + 2SA1943 20V-90V HIFI High Power Audio Amplifier Board With Speaker Protect Ralay
Aliexpress UK
(1) Kicker 51CWQ102 COMP Q 10" 800 Watt Car Audio Subwoofer DVC 2 Ohm Sub CWQ102. Item Code: 51CWQ102+Krypton M1+RWK41. Impedance (Ohms): 2 DVC. The CompQ™ brings deep, precise bass and superior sound quality, perfect for audiophiles seeking powerful, clean audio.
eBay
HIFI Power IRS2092S 500W Mono Channel Digital Power Amplifier Board Class D Stage
Aliexpress UK
Kicker (2) L7S15 Car Solo-Baric 15 Subwoofer Square L7 Sub 44L7S152 & HA-A1500.1 Kicker (2) L7S15 Car Audio Solo-Baric 15 Subwoofer Square L7 Sub 44L7S152 Bundle with Harmony HA-A1500.1 Amplifier & Amp Kit.
eBay
DC3.5V-5V 5W Mono Audio Amplifier Bluetooth Decoder Board Supports TWS Pair TYPE-C Interface Electronic Component Kit
Aliexpress UK
This CX-Series Mono Amp is now one-ohm stable, giving you even more power and wiring options for your system! (1) KICKER 46CXA8001T CXA800.1 800 Watt RMS Mono Class D Car Audio Amplifier Amp. KICKER 46CXA8001T CXA800.1 800 Watt RMS Mono Class D Car Audio Amplifier Amp.
eBay
PCB Board 1943+5200 Mono Power Amplifier Board For Audiophile DIY 200W PCB Board Circuit Design Empty Board High Power wholesale
Aliexpress UK
51LX1250.1+46PKD1 Mono Amplifier w/ 0AWG Kit. If you do not see the official KICKER Authorized Dealer seal, then it is not an Authorized Dealer. Kicker 51LX1250.1 LX Series Class D Mono Amplifier. Kicker 46PKD1 P Series 1/0AWG Power Amplifier Kit.
eBay
TOPPING B200 mono pure power amplifier SNR DNR 145dB Three sets of XLR/TRS balanced inputs Two sets of gain settings
Aliexpress UK
Mono subwoofer amplifier. 275 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms). Keep in mind many parts are removed from salvage vehicles and not able to be tested. It has been tested and no protection light.
eBay
Pre-order TOPPING B200 Mono Power NFCA Discrete Amplifier with Three Sets of XR/TRS Balanced Inputs
Aliexpress UK
eBay
Mini New Version Original Toshiba Mono 100W Toshiba Tube 2SC5200 + 2SA1943 DC 20-50V HiFi Power Amplifier Board
Aliexpress UK
For Select KICKER CXA, CX and PXA Series Amplifiers. Dial it up the way you want to hear it. Customize your bass, right from your front seat. Surface Mount installation.
eBay
New high-power thick film STK404-120 fever level mono amplifier board finished product
Aliexpress UK