Fosi Audio TP-02 Subwoofer Amplifier TDA7498E Mini Sub Bass Amp Digital Class D Integrated Subwoofer Amplifier 220 Watts: Amazon.co.uk: Electronics & Photo
Nobsound G2 PRO 300W Subwoofer Amplifier Mini Mono Channel Class D Power Amp Hi-Fi Full-Frequency and Sub Bass Switchable Home Theater Audio Amplifier for Passive Speakers Subwoofer: Amazon.co.uk: Electronics & Photo
OSD SMP200 Subwoofer Amp | AmericanAudioCompany
12" Active Subwoofer Bass box Car Audio Built in Amplifier Easy install New | eBay
SBG-844BR 400W 8 " Bass Reflex Subwoofer with Aura Amplifier