G1 MKII vs No.25
The No.25's low-frequency extension is 14 Hz against the G1 MKII's 15 Hz, its woofer 15" against 12", and its power handling 1000 W against 600 W. Both share drivers (1).
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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The REL G1 MKII is a reference series subwoofer that builds on the legacy of the original G1 with significant upgrades. It features a 12-inch (300mm) long-throw carbon fiber cone driver with an inverted carbon fiber dust cap, which is 25% stiffer in bending modes than its predecessor, allowing for better dynamic response and speed. The suspension travel permits over 2 inches of stroke, enabling exceptionally high output and nearly twice the loudness of the original model. The subwoofer is powered by a 600 Watt Class A/B MOS-FET amplifier, which is a 150 Watt increase over the previous G2 model, delivering powerful, fast, and controlled bass with ultra-reliable performance. The cabinet is a sealed, front-firing design with a curvilinear shape engineered to cancel standing waves, finished in a high-gloss piano black lacquer with 12 coats for an elegant appearance. The G1 MKII includes a palm-sized remote control for fine adjustments of gain, crossover frequency (20-90 Hz), phase (0-180 degrees), and output levels, allowing precise tuning from the listening position. Connectivity options include high-level Neutrik Speakon, low-level stereo RCA, LFE RCA, and LFE XLR inputs, plus high-level RCA, balanced XLR, and daisy chain outputs. The subwoofer weighs 108 lbs (49 kg) and measures 22.5" W x 18.2" H x 26.8" D (571.5 x 462 x 680.3 mm). It features a fully electronic protection system with SET-SAFE, DC fault, and output short circuit protection. The package includes a Neutrik Speakon interconnect cable (10 meters), mains lead, user manual, remote control, spikes, and batteries.
Driver and acoustic performance characteristics
Amplification power output and characteristics
Driver configuration and enclosure design
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Components that show up alongside the G1 MKII in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The No.25's low-frequency extension is 14 Hz against the G1 MKII's 15 Hz, its woofer 15" against 12", and its power handling 1000 W against 600 W. Both share drivers (1).
The SW12's woofer is 12.5" against the G1 MKII's 12", its low-frequency extension 20 Hz against 15 Hz, and its crossover 100 Hz against 20 Hz. Both share drivers (1).
The Deep Blue's low-frequency extension is 13 Hz against the G1 MKII's 15 Hz, its woofer 15" against 12", and its crossover 50 Hz against 20 Hz. Both share drivers (1).
The PB3000 R|Evolution's low-frequency extension is 16 Hz against the G1 MKII's 15 Hz, its woofer 13" against 12", and its power handling 1200 W against 600 W. Both share drivers (1).
Britannia B1
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