Velodyne Acoustics DF-12sc, DF-10sc User Manual
"...I rank the quality, if not the magnitude, of this small California
company's achievement up there with Dolby noise reduction and
the Compact Disc."
-David L. Clark
Audio, Nov. 1990
on Velodyne's servo-controlled
subwoofer systems.
"The servo-feedback subwoofers, in our experience, produce the
purest low frequency sounds of all the designs."
-John E. Johnson, Jr., Ph.D.
Secrets of Home Theater and High Fidelity, Jan. 1995
on Velodyne's servo-controlled
subwoofer systems.
"... it's safe to say that when it comes to woofin' done right,
Velodyne's bigger models are probably the safest bet there is."
"If you know subwoofers, you know about Velodyne."
-Corey Greenberg
Home Theater Technology, Feb. 1995
Face Off: Comparison of five subwoofers
Models DF-12sc & DF-10sc
OWNER'S MANUAL
12" & 10" Distortion Free (DF) Series
Automotive Servo-Controlled Subwoofers
Superior Design For Superior Sound
Velodyne Acoustics, Inc.
1070 Commercial St. Suite #101
San Jose, CA 95112
408.436.7270 voice
408.436.7276 fax
Printed on recycled paper.
Velodyne, DF-12sc & DF-10sc are trademarks of Velodyne Acoustics, Inc.
AUTOMOTIVE
DISTORTION-FREE
SUBWOOFER
For installation & connections, see the supplied installation / connections manual.
FOR YOUR RECORDS. . .
SPECIFICATIONS DF-12sc DF-10sc
DATE PURCHASED _____________________________________
MODEL PURCHASED ___________________________________
DEALER ______________________________________________
INSTALLED BY _________________________________________
SERIAL # _____________________________________________
WARNING!
Do not power up system before consulting manual.
Incorrect installation could result in damage to unit that
will not be covered under warranty. Please follow these
easy steps before using/installing unit.
Please read all instructions first.
✓
Due to the sophisticated nature of this equipment, we highly
✓
recommend having an authorized Velodyne dealer perform all
installation & setup functions.
Double check all connections to unit before applying power.
✓
THD <1% <1%
(comparable non-
THD 10-25%+10-25%+
servo subwoofers)
frequency response 13-105hz 15-105hz
sensitivity (1w/1m) 90 dB 87 dB
excursion capability (linear) 3/4 in. 3/4 in.
(max.) 1-1/4 in. 1-1/4 in.
voice coil diameter 2-1/2 in. 2-1/2 in.
magnet weight 54 oz. 54 oz.
nominal impedance 4 ohms 4 ohms
recommended amp power 100 w/min. 100 w/min.
300 w/max. 300 w/max.
recommended enclosure size * 1.7 cu. ft. 1.0 cu. ft.
(sealed)
* Recommended enclosures :
This product has been designed to perform in any type of enclosure,
or in an infinite baffle setup. Performance of the subwoofer system
may be tailored to your listening taste by altering the type of
enclosure used. Consult installation manual for further details.
Power requirements are typically reduced when used in an infinite
baffle configuration.
✓
Servo control unit must have basic functions set to your installation
type before applying power.
Final calibration should be set by installer after initial power up.
✓
Installation manual MUST be followed precisely during installation
✓
process to ensure proper performance and prevent damage to
speaker or control unit.
1
☞
Specifications are subject to change without notice.
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