NHT B-20 Owner's Manual page 8

SYSTEM MAINTENANCE:
Except for the occasional flattering comment, your B-20 needs no regular maintenance. The B-20 cabinet is finished with a durable,
scratch resistant laminate. Light dusting is usually sufficient, although the cabinet can be cleaned with a nonabrasive, water based cleaner.
The grill covering the woofer should not be removed. The Control Amplifier can, as well, be lightly dusted. Never spray any type of
cleaner onto the amplifier or woofer cone directly!
TECHNICAL SUPPORT:
Toll free: (800)-NHT-9993 (648-9993. Fax: (707)-747-1252. Email: tech@nhtpro.com
Postal Mail: NHTPro, 6400 Goodyear Rd., Benicia, CA 94510
SPECIFICATIONS:
SYSTEM:
Type: Active, modular stereo subwoofer system.
Configuration: Acoustic Suspension
Woofer: Two, 10" ultra long-excursion (1.0" linear, peak-to-peak), treated paper.
Low Frequency Response: 29Hz - 100Hz
-6dB LF cutoff: 25Hz (in room response).
Peak Acoustical Output: 114 dB SPL @ 40 Hz.
CONTROL AMPLIFIER:
Amplifier Power: 250W RMS/Ch., 400W peak (500ms).
Dimensions: 3.5" h x 19" w x 13.375" d.
Weight: 37 lbs.
Shipping Weight: 45lbs./20.4kg.
FEATURES/CONTROLS:
Input Connectors: XLR, TRS (
Satellite output connectors: TRS (
Switchable Input Sensitivity: Mute, +11dB, +4dB, -3dB, -10dB
Switchable Phase Control: -180, -90, 0, 90, 180 degrees.
Continuously Variable Gain: 0 ~ -20dB
Switchable Subwoofer LP Frequency: 70Hz, 85Hz, 95Hz, 105Hz, By (230Hz)@ 12dB/Oct.
Switchable Monitor High-Pass Frequency: Bypass, 35Hz, 60Hz, 85Hz, 110Hz, Bypass@ 6dB/Oct.
Subwoofer Bypass via supplied remote control
Subwoofer Mono/Stereo mode select via supplied remote control
WOOFERS:
Material: 3/4" MDF (medium density fibreboard).
Finish: High pressure applied, Arpa brand Italian laminate.
Dimensions: 14" h x 14" w x 16" d (with grill).
Weight ea.: 38lbs.
Shipping weight ea.: 43lbs./19.5kg.
wired in parallel, fully differential balanced
fully differential balanced
NHTPro
6400 Goodyear Rd.
Benicia, CA 94510
ph: (707)748-5940
fx: (707)747-1252
www.nhtpro.com
)
)