The PRV Audio RS900 Bass is a 1-channel, Class-D monoblock amplifier designed mainly for subwoofers and bass-focused vehicle audio systems. It is rated at 900 Watts RMS at 14.0 V and 1 Ohm, and is TRUE RMS certified. Its oversized, reinforced power supply uses true copper and is mounted on a heavy-duty PCB; a large capacitor bank stores reserve energy for steady bass. Average efficiency is 77%, musical current draw is 43 A, and operating voltage is 9 to 16 Volts.
The amplifier is rated at 700 Watts RMS at 14.0 V and 2 Ohm, with a 10–200 Hz frequency response optimized for bass. Built-in SUBSONIC and LPF filters, a BASS BOOST control adjustable from 0 to +12 dB, and a variable frequency control from 35 to 50 Hz let you tune low-frequency output. A high-level speaker input connects to speaker wires and offers signal auto turn-on, so a separate remote wire is not needed. Other features include vibration-resistant Tiffany RCA inputs, Clip LED indicators on the top panel, and four-way protection for high voltage, low voltage, output shortage, and current.
A heavy-duty cast-aluminum heatsink and built-in cooling fan support operation during demanding playback. The amplifier measures 6″ W x 6.25″ D x 2.25″ H and weighs 2.7 lbs. It has one pair of RCA signal inputs, minimum input sensitivity of 200 mV, and signal-to-noise ratio greater than 90 dB. The listed power data use a 40 Hz frequency reference with THD+N to ≤1% at the stated impedances; component and manufacturing variations may affect measurements. It is designed for music applications with speakers, and testing with a resistive load is not recommended.
For a dual 4 Ohm subwoofer configuration, the description specifies installing 2x subs in parallel at 1 Ohm, with up to 450 watts to the sub. For installation, switch the amplifier off before connecting or disconnecting anything. Keep cables away from ignition cables, electronic injection modules, and the starter switch to reduce noise interference, and allow a minimum recommended 1.25″ installation distance between amplifiers. Use OFC 4 AWG copper power and ground wire, minimum 12 AWG speaker wire, and good-quality connectors; do not use copper-clad aluminum (CCAW) wire. The amplifier’s listed minimum power wire input is (OFC) 4 Gauge and its minimum speaker wire output is 14 Gauge; the description also specifies heavy-duty 4 gauge power inputs and 10 gauge speaker outputs. Keep cables clear of sharp metal edges and use a 60A fuse 12 inches from the battery.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.