ERT

About the ERT

The AV123 Onix Rocket ERT (likely referring to the ERT subwoofer or bass enhancement module mentioned in AV123 Rocket series packages) is part of the Onix Rocket lineup from AV123. It utilizes a rear-facing bass reflex design with a folded vent loaded into a slotted port, housing an 8-inch woofer driven by a 350-watt internal amplifier. The enclosure includes a prominent ribbed heat sink (11.5 x 5.25 inches) for the amp, IEC power input, and a red-lighted rocker switch. It was offered as an optional add-on for Rocket speakers like the RS1000 at a special package price of $199 per pair, emphasizing deep bass extension down to around 27-28Hz with digital equalization support via R-DES. This product, from the mid-2000s era, is no longer manufactured and appears only in used markets or historical reviews.