Klein Hummel O-800 Subwoofer (Used)

The Klein + Hummel O 800 active (185W peak) subwoofer features a 10" woofer, three balanced XLR inputs (Left, Center, Right), providing all the connections necessary for operating in mono, stereo, stereo-plus-center-channel mode, Dolby Surround, Dolby Surround EX and front or rear channels with 5.1. Its three balanced high-pass XLR outputs (Left, Center, Right) are for connecting the corresponding front and rear monitors. The subwoofer can be muted whenever necessary either directly via the rear-panel bypass switch or remotely with an on/off footswitch connected to the 1/4" Bypass jack. Two controls - a continuously variable phase-adjustment control (0 - 180) and a separate level control - permit you to set up the subwoofer at any location in the studio you wish. The 4-step low-cut filter (30, 40, 50, or 60 Hz) helps match the subwoofer to the acoustics of a given room, and also make it possible to simulate a system not as rich in bass in order to determine how well a given mix will translate to such a system.

The driver delivers bass with remarkably low distortion. Its Nomex/Kevlar-composite cone with its high degree of self-damping and its rear vented voice coil design both contribute to the production of very high sound-pressure levels with absolutely minimal power compression. The implementation of these new technologies yields uncommonly articulate bass all the way down to 27 Hz. The low-frequency driver is in an aluminum basket designed for maximum air flow. It is also magnetically shielded.

The O 800 includes sophisticated "True-Clipping" circuitry which, as it senses the onset of distortion, automatically limits the signal sent to the amplifier, and reliably protects both the loudspeaker and the amp from being overdriven and possibly damaged. The high-pass/low-pass crossover occurs at precisely 90 Hz using an integrated active Linkwitz-Riley frequency crossover with a slope of 24 dB/octave.

Features:

• 10" woofer with aluminum basket designed for maximum air flow
• Woofer amplifier, cont. output power (THD < 0.1%): 120 W
• Woofer amplifier, peak output power: 185 W
• Woofer constructed with rear ventilation offering higher maximum sound pressure and minimal power compression
• Exceptionally low-distortion bass reproduction due to very long excursion 40 mm (1.6 inch)
• Patented Nomex-Kevlar composite cone offering minimal distortion and maximum self-damping
• Magnetically shielded
• Solid construction eliminates resonance for tight and articulate bass
• Linear frequency response independent from sound pressure level
• Low-compression bass reproduction from generously proportioned bass reflex port
• Integrated electronic limiter
• Precise, active, integrated main channels crossover with 24 dB/oct. slopes
• Adaptable for bass extension and increased SPL for all K + H monitors up to the O 300 and O 300 D
• Subwoofer bypass function and optional remote control
• 4-step low-cut filter (30 Hz, 40 Hz, 50 Hz, 60 Hz)
• Continuously variable phase-adjustment control allows seamless integration with main loudspeakers
• 3 electronically balanced XLR inputs (left, center, right)
• Compatible with mono, stereo, Dolby Surround, and front or rear channels in a 5.1 or 6.1 system
• Center input can be switched to "Sub Direct" for independent reproduction of the LFE channel
• Electronically balanced high-pass outputs (left, center, right) connect to corresponding front or rear monitors
• Dimensions: 14.2"H x 12.6"W x 20.1"D (360 x 320 x 510 mm)
• Net volume internal: 32.3 liters
• Weight: 55.1 lbs (25 kg)