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Legacy Metro Owner's Manual

Subwoofer system
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Owners Manual For The
Metro
Subwoofer System

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Summary of Contents for Legacy Metro

  • Page 1 Owners Manual For The Metro Subwoofer System...

  • Page 2: Table Of Contents

    Table of Contents Page Registration Owners Record The Cabinetry / Our Commitment Warranty Setup Unpacking Your Speakers Speaker Placement Hooking Up Cables 9-10 Speaker Connections 11-13 Fine Tuning 14-15 Technology Specifications...

  • Page 3: Owners Record

    The serial number is located on the rear of the unit. Record this number in the space provided below. Refer to this when calling your dealer regarding this product. Model: Metro Serial No: Date of purchase: Thank you for selecting a Legacy Loudspeaker System. These hand- crafted instruments will provide you with many years of listening en- joyment.

  • Page 4: The Cabinetry / Our Commitment

    The Cabinetry / Our Commitment Handcrafted Beneath the surface of Metro’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: Warranty

    Electronic components such as internal amplifiers and digital processors are covered for three (3)years. Please register your product with Legacy Audio. Should you require service Legacy will require a proof of purchase in order to honor the warranty - so please keep your receipt.

  • Page 6: Unpacking Your Speakers

    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 7: Speaker Placement

    Speaker Placement 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 Speaker Placement 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: Hooking Up Cables

    Hooking Up Cables The ideal conductor would have negligible resistance, inductance and capacitance. The table below shows how a few actual speaker cables measure up. Ωs/ft pF/ft µH/ft Cable 12 ga. 0.0033 0.21 14 ga. 0.0048 0.13 16 ga. 0.0079 0.18 18 ga.
  • Page 10 Hooking Up Cables 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: Speaker Connections

    If using Left/Right output jacks from the preamp, the internal circuit module of the Metro 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. The crossover frequency and level will be controlled by the appropriately labeled controls on the rear panel of the sub.
  • Page 12 Connect the preamp/processor’s “sub out” to the left channel RCA input (mono). Option 3: Connecting the Metro 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.

  • Page 13: Speaker Connections

    Speaker Connections Powering Up Metro 1. Power Cable: The supplied power cable will plug into the 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.

  • Page 14: Fine Tuning

    Freq.: This control allows you to adjust the low frequency information. The crossover frequency range of Metro is 40 Hz -200 Hz.

  • Page 15: Fine Tuning

    Fine Tuning Phase (0 °/-180 °): This control is essential in the proper setup of your subwoofer. If not set up properly, your main speakers and subwoofer can actually work against each other. If operating out-of- phase the subwoofer and mains will cancel, creating nulls at some frequencies (primarily upper bass).What is desirable is to have the subwoofer and the mains operating in phase, relative to the primary listening position.

  • Page 16: Specifications

    Specifications System Type: Subwoofer, pneumatically coupled Aura 12" spun aluminum with Subwoofer: encapsulated neo motor Radiator: Down-firing 15" Low Frequency Alignment: 6th Order Internal Amplification: 500 watt, Class D Freq. Response (Hz, +/-2dB): 20-150 Impedance: Phase Adjustment: Cont. +/-180 Blend EQ: Level Control Max.
  • Page 17 Low Voltage Directive 2006/95/EC your country. A listing of Legacy EMC Directive 2004/108/EC Audio Distributors can be found on the Legacy Audio website www.legacyaudio.com or by contacting Legacy Audio at: 3023 E. Sangamon Ave., Springfield, IL 62702, USA— Phone: +1 217 544-3178.
  • Page 18 Notes:...
  • Page 19 ©2013 Legacy Audio 3023 E Sangamon Ave. Springfield, IL 62702 Phone: 800-283-4644 Fax: 217-544-1483...

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