The REL Acoustics HT/1205 MK.II is a high-output, home-cinema-focused subwoofer engineered to deliver explosive low-frequency impact with speed and control. Designed specifically for theatre applications, it combines a powerful long-throw driver with a rugged Class D amplifier to produce room-filling bass that brings films and games to life.
The MK.II revision introduces improved driver design and enhanced amplifier performance, resulting in greater output, improved transient response and tighter control at high listening levels. Its sealed cabinet ensures fast, punchy bass with minimal overhang, making it ideal for dedicated cinema rooms and high-impact AV systems.
12-inch CarbonGlas™ long-throw active driver
Class D amplifier delivering 500 W power
Sealed enclosure for fast, punchy bass response
Dedicated LFE input for home cinema systems
Designed for high-output theatre performance
Full Specifications
Subwoofer & Amplification
Active Driver: 12-inch CarbonGlas™ long-throw bass driver
Amplifier: Class D
Output Power: 500 W
Cabinet Type: Sealed enclosure
Frequency & Control
Frequency Response: down to 22 Hz (-6 dB)
Low-Pass Filter: Fixed LFE input
Phase Control: 0 / 180 degrees
Auto On/Standby mode
Connectivity
LFE Input: RCA
Wireless: Compatible with optional REL HT-Air transmitter
Physical & General
Dimensions (H × W × D): approx. 394 × 370 × 425 mm
The REL Acoustics HT/1205 MK.II is a high-output, home-cinema-focused subwoofer engineered to deliver explosive low-frequency impact with speed and control. Designed specifically for theatre applications, it combines a powerful long-throw driver with a rugged Class D amplifier to produce room-filling bass that brings films and games to life.
The MK.II revision introduces improved driver design and enhanced amplifier performance, resulting in greater output, improved transient response and tighter control at high listening levels. Its sealed cabinet ensures fast, punchy bass with minimal overhang, making it ideal for dedicated cinema rooms and high-impact AV systems.
12-inch CarbonGlas™ long-throw active driver
Class D amplifier delivering 500 W power
Sealed enclosure for fast, punchy bass response
Dedicated LFE input for home cinema systems
Designed for high-output theatre performance
Full Specifications
Subwoofer & Amplification
Active Driver: 12-inch CarbonGlas™ long-throw bass driver
Amplifier: Class D
Output Power: 500 W
Cabinet Type: Sealed enclosure
Frequency & Control
Frequency Response: down to 22 Hz (-6 dB)
Low-Pass Filter: Fixed LFE input
Phase Control: 0 / 180 degrees
Auto On/Standby mode
Connectivity
LFE Input: RCA
Wireless: Compatible with optional REL HT-Air transmitter
Physical & General
Dimensions (H × W × D): approx. 394 × 370 × 425 mm