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Summary of Contents for Legacy Xtreme XD
- Page 1 Owners Manual For The Xtreme XD Loudspeaker System...
- Page 2 Registration 3. Owners Record 4. The Cabinetry / Our Commitment Setup 5. Unpacking Your Speakers 6. Speaker Placement / Installation 8. Hook up Cables 10. Speaker Connections 15. Fine Tuning Technology 18. 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 Handcrafted Beneath the surface of Xtreme XD’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.
- Page 5 V-board corner protectors. Molded foam end caps are used to protect the elegant cabinetry, and a plastic liner is provided as waterproofing. Please save this packing for future transportation. If cartons become damaged or misplaced, new ones can be purchased from Legacy Audio.
- Page 6 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 7 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 8 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 9 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 10 (Frequency, Level) from your preamp. NOTE: When using the LFE input, the freq. control on the front panel of the Xtreme XD will be bypassed. The level control will then function as a sensitivity control, allowing the preamp/processor to control volume.
- Page 11 If using Left/Right output jacks from the preamp, the internal circuit module of the Xtreme XD will sum the two channels together. When using the left and right low level inputs on the subwoofer, the internal crossover of the subwoofer is being used.
- Page 12 Option 4: Connecting the Xtreme XD using a Wavelaunch Digital Signal Processor If you are using a Legacy Audio Wavelaunch Digital Signal Processor in your system, connect the LFE (or Subwoofer Out) output from the Surround Processor to Input 4 of the Wavelaunch processor.
- Page 13 Option 5: Connecting the Xtreme XD using the High Level Inputs (from amplifier) If using the high level inputs it is highly recommended that you connect them in parallel with your main left and right loudspeakers. NOTE: DO NOT use the output from a differential Monobloc amplifier as a high level input to the subwoofer.
- Page 14 Off/Auto On switch: This switch starts or stops signal flow to the unit. In Standby the preamp unit stays active but the amplifier shuts down. Auto On: Once bass signal is received, Xtreme XD will turn on automatically. If the unit has not received a bass signal after 30 minutes, Xtreme XD will mute.
- Page 15 Adjusting Xtreme XD On the front panel of the Xtreme XD you’ll notice four controls: Level, Freq., Blend, and Phase. These allow an extraordinary amount of control over your subwoofer. These controls will allow you to tailor the sound of the sub to your room and integrate with your main speakers.
- Page 16 Freq.: This control will allow you to adjust low frequency information. The crossover frequency range of the Xtreme XD is 45 - 150 Hz. Blend: The graph on the back panel of the Xtreme XD illustrates the effects of the Blend control. Turning the knob counter-clockwise reduces energy from the subwoofer in the range of 35-50 Hz.
- Page 17 While seated at your listening position, have someone sweep the phase control slowly from one extreme to the other. Using pink noise or a 50-60 Hz test tone, listen for the strongest output. Now take note of that setting. Next, play music program material and optimize the level and phase settings further;...
- Page 18 This unit is bolted in compression to secure nearly 40 lbs. of motor structure. • A high current 1000 watt amplifier maintains control of Xtreme XD’s 15” sub-bass piston. • Xtreme XD features automatic turn on/off when presented with an audio signal.
- Page 19 System Type: Subwoofer mass loaded, pneumatically coupled Driver: 1 active 15”, 1 passive 15” radiator Alignment: 6th Order/ Back EMF canceling circuit Internal Amplification: 1000 watts, ICE Power Frequency Response: 16-100 Hz Input Impedance: 10K Ohms minimum Phase Adjustment: Cont. +/- 180 Blend EQ: +/- 12 dB @ 45 Hz Max SPL: 120dB @ 1m Low Pass Filter Slope: 18 dB per octave...
- Page 20 If you ever encounter problems from your subwoofer there are a number of factors that could be involved. 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 the subwoofer) is too long.
- Page 21 © 2011 Legacy Audio 3023 E. Sangamon Ave. Springfield, IL 62702 Phone: 800-283-4644 Fax: 217-544-1483...
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