Velodyne Acoustics HGS-15X, HGS-10X, HGS-12X User Manual
HGS-X Series
HGS-10X, HGS-12X and HGS-15X
Since 1983, when Velodyne revolutionized subwoofers with
its patented High Gain Servo™ technology, reviewers and
consumers have praised their superior performance. The
tradition continues with the HGS-X Series – delivering
Velodyne’s world-famous powerful, accurate, low distortion
bass from incredibly small, easy to place or custom install
cabinets. The High Gain Servo system controls Velodyne’s
unique Dual Tandem Voice Coil drivers powered by a Class
D amplifier that delivers more than 3000 watts of peak
power. Without question, the HGS-X Series are the most
powerful, precise and affordable servo-controlled subwoofers
on the market today.
Features
HGS-15X
• High Gain Servo control for accuracy
• A flexible high quality crossover system
• Selectable subsonic filter
• Infrared remote control (optional)
• Adjustable low-pass filter
• Subwoofer Direct crossover by-pass
• Phase adjustment
ERS™ Amps - Unprecedented Power
To power these incredible subwoofers, Velodyne uses a “digital” switching
amplifier, capable of producing 1250 watts RMS and over 3000 watts peak.
Unlike conventional designs, the HGS-X Series incorporates Velodyne’s
patented Energy Recovery System that converts over 95% of the incoming
current to usable power with minimal heat buildup.
High Gain Servo - Lowest Distortion
Only Velodyne’s High Gain Servo technology can deliver less
than 1% distortion all the way down to 20 Hz and below. This
patented Velodyne technology utilizes a tiny sealed
accelerometer that is mounted to the voice coil, measuring the
actual motion of the speaker cone 3,500 times a second. The
data is fed into a processor where it is compared to the input
signal and any discrepancies are corrected instantaneously. The
distortion that produces the boomy, muddy bass of competitive
subwoofers is virtually eliminated in the HGS-X Series. The
result is deep, dynamic bass that you can actually feel.
HGS-12X
Dual Tandem Voice Coil - Linear Motion
Non-linear cone movement causes a high level of mechanical distortion and
sloppy, muddy bass performance. Velodyne conquers this common cause of
distortion with its unique Dual Tandem Voice Coil design. This system creates
a linear excursion of 1¼” peak-to-peak with a 2” maximum. A two section
magnetic structure in a push-pull configuration with a two segment voice coil
wound out of phase generates less than half the distortion of conventional
motor designs, and is capable of four times the heat dissipation, contributing
to Velodyne’s distinctive tight, accurate, low distortion sound.
Specifications
Amplifier - Class D 1250 watts RMS/
Woofer 10" forward firing
Voice Coil 3" Dual Tandem push-pull 3" Dual Tandem push-pull 3" Dual Tandem push-pull
Excursion 2" maximum 2" maximum 2" maximum
Magnet Structure 310 oz (19.3 lbs.) 310 oz (19.3 lbs.) 380 oz (24 lbs.)
Cone Kevlar reinforced Kevlar reinforced Kevlar reinforced
High Pass Crossover passive 80 Hz (6dB/octave) passive 80
Low Pass Crossover 40 Hz-120 Hz
Crossover By-pass Yes - Subwoofer Direct Yes - Subwoofer Direct Yes - Subwoofer Direct
Anti-Clipping Circuit Yes Yes Yes
Inputs and Outputs Line Level Line Level Line and Speaker Level
Frequency Response 20-120 Hz +/- 3 dB 20-120 Hz +/- 3 dB 18-120 Hz +/- 3 dB
Subsonic Filter 20 Hz or 35 Hz 20 Hz or 35 Hz 15 Hz or 35 Hz
HGS-10X HGS-12X HGS-15X
3000 watts peak
(8" piston diameter)
(12 dB/octave initial,
48 dB/octave ultimate)
1250 watts RMS/
3000 watts peak
12" forward firing
(9.7" piston diameter)
(6 dB/octave)
40 Hz-120 Hz
(12 dB/octave initial,
48 dB/octave ultimate)
1250 watts RMS/
3000 watts peak
15" forward firing
(12.7" piston diameter)
passive 80/100 Hz
(6 dB/octave)
40 Hz-120 Hz
(12 dB/octave initial,
48 dB/octave ultimate)
Phase 0° or 180° 0° or 180° 0° or 180°
Auto On/Off Yes Yes Yes
High Gain Servo Yes Yes Yes
Distortion Less than 1% Less than 1% Less than .5%
Remote Control Optional Optional Optional
Weight 45 lbs. (20 kg) 60 lbs. (27 kg) 95 lbs. (43 kg)
Cabinet: (H/W/D)
(cm)
(includes grill & feet)
Velodyne Acoustics, Inc.
345 Digital Drive
Morgan Hill, CA 95037
(408) 465-2800
www.velodyne.com
11½" x 11" x 11"
28.75 x 27.5 x 27.5
14¾" x 14" x 15¾"
37 x 35 x 39
Copyright ©2004 Velodyne Acoustics, Inc.
Specifications subject to change without notice.
Other trademarks or registered trademarks are
property of their respective owners.
April 2004, Rev A
19 7/8" x 18" x 17 7/8
49 x 45 x 45
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