CHT-15 Owner's Manual Audio/Video Subwoofer System
CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Caution To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to qualified service personnel. The lighting flash with arrowhead symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
Congratulations! Congratulations on your purchase of a Velodyne subwoofer system. This system represents the state of the art in low frequency reproduction. Read and follow the instructions below to insure safe and proper system operation. Warning! To prevent fire or shock hazard, do not expose this equipment to rain or moisture. To avoid electrical shock, do not open speaker enclosure or amp chassis cover. Please observe all warnings on the equipment itself. There are no user serviceable parts inside.
Installation Your new subwoofer system provides for a number of installation options. Read all the installation information below in order to determine which installation option is best for your system. Remember to perform all installation procedures with system power turned off. Inputs Your new subwoofer is equipped with both speaker-level and line-level inputs. Use the LINE-IN jacks when connecting your subwoofer to a preamp, signal processor, or line-level crossover.
Phase adjustment- 0˚ to 180˚ This control allows you to "delay" the phase of the subwoofer's output signal up to 180˚ to correct for any possible mismatch & resulting cancellation between the subwoofer and your main speakers/amplifier. To adjust, simply listen to the system with music playing. Then rotate the knob from one end to the other and listen for a change in low frequency output. The correct position will have a greater amount of apparent low frequency output.
By utilizing this method, you will have a bi-amplified system, gaining improved power and headroom for your system. Figure 1: Installation using line-level (line in) inputs PRE-AMP AMPLIFIER MAIN OUTPUTS RIGHT LEFT MAIN INPUTS RIGHT LEFT MAIN OUTPUTS RIGHT LEFT TO SATELLITE SPEAKERS Subwoofer outputs The Velodyne subwoofer is designed to operate using the full range audio signal for input when using the built-in crossover.
To bypass the subwoofer's internal crossover when the unit is being fed a low pass signal from another crossover, simply locate the switch marked X-over, OUT - IN on the rear panel of the subwoofer and set to the OUT position. This will eliminate the internal crossover from the signal path. Note. . . If not using an external crossover, you should use the built-in crossover for optimal performance.
Figure 2: Installation using speaker-level (from amplifier) inputs MAIN OUTPUTS (speaker-level) INTEGRATED AMP / RECEIVER SATELLITE SPEAKERS Interconnect cables When installing your new Velodyne subwoofer using the line level connections, you should always use shielded phono cables. There are many decent cables available today, most any of which will work perfectly well. We do recommend that you keep the length of cable as short as possible to avoid any potential noise problems.
Placement True subwoofers operate at extremely low frequencies which are primarily omni-directional. While it is recommended that the subwoofer be placed on the same plane as the satellite speakers, room and system conditions often dictate otherwise. Keep in mind that frequency response and output level can be drastically influenced by placement, depending on the acoustic properties of the listening room. Typically, the optimum location for a subwoofer is tucked away in a corner of your listening room.
inputs and turn off the unit after several minutes when there is no longer any signal at the inputs. If you plan to leave the sub unused for an extended period of time, we recommend that you turn off the unit by the master power switch on the rear panel. Troubleshooting and Service Before seeking service for your subwoofer, please re-check all settings. Following is a simple troubleshooting guide to assist you. 1. 2. 3. 4. 5. 6. 7.
SPECIFICATIONS CHT-15 Cabinet (H,W,D) 21" x 18.5" x 22.75" Frequency Response 23Hz-120Hz +/- 3 dB High Pass Crossover 80Hz or 100Hz (6 dB/octave slope) Low Pass Crossover 40Hz -120Hz (12 dB/octave, 24 dB ultimate) Amplifier (Class A/B) 750 watts/300 watts RMS power Woofer 15" forward firing Magnet 70 oz. Voice Coil 2 - 1/2" copper Inputs Line-level & speaker-level Outputs Line-level & speaker-level Warranty Two years (parts & labor) Weight 83 lbs. (approx.
"If you know subwoofers, you know about Velodyne." - Corey Greenberg Home Theater Technology/February 1995 "It delivered room-shaking bass and dramatically demonstrated the effectiveness of a single subwoofer placed to one side of the room." - Julian Hirsh Stereo Review, January 1997 Other Velodyne Subwoofer Products: F Series FSX-12 II BV VLF Series VLF-810 VLF-1012 SPL Series SPL-800 SPL-1000 SPL-1200 HGS Series HGS-10 HGS-12 HGS-15 HGS-18 Velodyne Acoustics, Inc. 1070 Commercial St.
