Related Manuals for Legacy Deep Impact
Summary of Contents for Legacy Deep Impact
- Page 2 Registration 3. Owners Record 4. Warranty Information 5. The Cabinetry / Our Commitment Setup 6. Unpacking Your Speakers 7. Speaker Placement / Installation 9. Hook up Cables 11. Unit Connections 15. Fine Tuning Technology 17. Designer’s Note 19. Specifications 20. Troubleshooting...
- Page 3 The model and serial numbers are located on the rear of the unit. Record these numbers in the spaces provided below. Refer to them when calling upon your dealer regarding this product. Model No. _______________________________ Serial No. _______________________________ Date of purchase: _________________________ Thank you for selecting a Legacy Loudspeaker System.
- Page 4 Ten Year Limited Cabinetry Warranty Five Year Limited Electronics Warranty Legacy Audio, Inc. extends to the original owner coverage of defects in materials and workmanship for a period of 90 days from the date of purchase. To extend this warranty to 10 years for cabinetry and 5 years for the electronics, please fill out the enclosed warranty card and return to Legacy Audio.
- Page 5 Handcrafted Beneath the surface of Marquis’s elegant exterior lies rigid MDF construction. Interlocking joinery maximizes the strength of the cabinet parts. Polyester fiberfill is selected for internal damping. A sharp rap on the enclosure will leave you with little more than bruised knuckles. Each cabinet is impeccably finished on all exposed surfaces with select veneers.
- Page 6 Your new subwoofer has been very carefully packaged to insure that it travels to you safely. Each subwoofer is protected by a double-wall outer carton with heavy V-board corner protectors. Molded foam end caps are used to protect the elegant cabinetry, and a plastic liner is provided as waterproofing.
- Page 7 Since the human ear is rather poor at localizing radiation frequencies below 125 Hz, good results may be obtained in a variety of room placements. Careful adjustment of the convenient front panel controls will lead to seamless transition. Low frequency reinforcement occurs whenever woofers are placed near room boundaries.
- Page 8 Now, while such reinforcement might actually be beneficial at very low frequencies, excessive excitation can cause “overhang” or a droning effect at mid-bass frequencies. A way to minimize excitation of these resonances is to place your subwoofer asymmetrically relative to room boundaries.
- Page 9 The ideal conductor would have negligible resistance, inductance and capacitance. The table below shows how a few actual speaker cables measure up. Cable Ωs/ft pF/ft µH/ft 12 ga. 0.0033 0.21 14 ga. 0.0048 0.13 16 ga. 0.0079 0.18 18 ga. 0.0128 0.21 Capacitance is considered insignificant in each cable because its effect is...
- Page 10 What about phase shift due to frequency dependent travel times down the speaker cable? Measurements show that 100 Hz waves will be delayed about 20 billionths of a second behind 10 kHz waves when traveling to the end of a 10 foot speaker cable. Since the cilia of the ear requires 25,000 times longer than this just to transmit phase information, phase shifting is obviously not the primary concern when considering speaker cables.
- Page 11 Once you’ve found a place in your room, the next step is to connect the Deep Impact to your system. There are a variety of ways this can be accomplished, all of which will be listed and explained. Option 1: Connecting the Deep Impact using the Low Level Inputs (from preamp/processor).
- Page 12 Option 2: Connecting the Deep Impact using a STEP One or Whisper Environmental Processor. If you are using a Legacy Audio StepOne or a Whisper controller in your system: Stereo Amplifying: In a stereo configuration, the output from the preamplifier feeds the inputs of the StepOne/Whisper Processor and the variable outputs of the StepOne/Whisper Processor feed into the stereo amplifier.
- Page 13 Option 3: Connecting the Deep Impact using the High Level Inputs (from amplifier). A. If using the high level inputs , it is highly recommended that you connect them in parallel with your main left and right loudspeakers. B. One may decrease the low frequency demands from the main left and right speakers by connecting them to the binding posts labeled High Level Out.
- Page 14 Protection Deep Impact features a special thermal reset to prevent damage to the internal amplifier. This is invisible under normal operation, however should your subwoofer be over-driven for long periods it will enter the “protect”...
- Page 15 Frequency: This will allow you to adjust low frequency information amplified and played by the subwoofer. The crossover frequency of the Deep Impact is 40 - 170 Hz. so the point you set it will be somewhere in between. This feature is also operable from the remote.
- Page 16 Adjustments Be sure to sit in your normal listening area when making these final adjustments. 1. Begin by setting both the front panel Frequency and Level controls to the 12 O’clock position. 2. Using pink noise, a warble tone centered between 50-80 Hz, or a recording with rich bass content, have someone try the phase switch in the 0°...
- Page 17 • Deep Impact is a carefully engineered subwoofer, capable of integrating with the finest speakers. • Unlike many woofers that suffer from overshoot, Deep Impact applies a special EMF countering circuit, which increases power handling and radically reduces low frequency distortion.
- Page 18 Impact’s Level, and Frequency controls. Tuning so simple, it can be done from the comfort of the couch. • Deep Impact features automatic turn on/off when presented with an audio signal. • The high pass filter alleviates the deep bass demands from compact satellite speakers, thus preventing low frequency strain due to long excursion.
- Page 19 System Type: Sealed enclosure. Driver: Dual 12” Carbon reinforced pulp. Alignment: 5th order. Amplification: 400 watts. Low Pass Crossover: 40 - 170 Hz. Low Pass Filter Slope: 18 dB per octave. Maximum SPL: 120 dB @ 40 Hz. High Pass Crossover: 85 Hz @ 6 ohms. High Pass Slope: 12 dB per octave.
- Page 20 3. Deep Impact features a special thermal reset to prevent damage to the internal amplifier. This is invisible under normal operation; however should your subwoofer be over driven for long periods it will turn off.
- Page 21 Notes:...
- Page 22 © 2003 Legacy Audio 150 Locust Street. Macungie, PA 18062 Phone: 610 965 0494 Fax: 610 965 4915...
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