Summary of Deep Impact
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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.
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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: __________...
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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 elec...
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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. Eac...
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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 waterproof...
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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 pla...
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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. For ins...
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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 24 0.21 14 ga. 0.0048 17 0.13 16 ga. 0.0079 16 0.18 18 ga. 0.0128 28 0.21 capacitance is considered insignifican...
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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 lon...
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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). Note: if us...
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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 processo...
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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 ...
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14 powering up deep impact 1. Power cable: the supplied power cable will plug into a socket on the back terminal plate of the unit. Note: try to plug into the same ac circuit as the rest of your audio system, as this will avoid hum from ground loops. 2. Power switch: the power switch is on the rear ...
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15 controls level: this will allow you to adjust the volume level played by the subwoofer. It only controls the subwoofer level, not the level of any of the other loudspeakers in the system, even if they’re hooked up in parallel. This motorized control can also be operated with the included remote c...
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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...
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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. • an enormous ...
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18 • easy access front panel controls allow you to adjust deep 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 dem...
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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. Bi...
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20 1. If the subwoofer has a noticeably higher noise floor compared to your other speakers, it is likely that the cable run between the preamp/processor and subwoofer (or between the amplifier and subwoofer) is too long. Typically, you want to use a length of less than3 meters if using the low level...
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21 notes:.
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22 © 2003 legacy audio 150 locust street. Macungie, pa 18062 phone: 610 965 0494 fax: 610 965 4915.