Legend L400 - Loudspeaker POLK - Free user manual and instructions
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| Product Type | Center Channel Loudspeaker |
| Brand | Polk Audio |
| Model | Legend L400 |
| Series | Legend Series |
| Dimensions (W x H x D) | 22.05" x 8.27" x 13.78" (560 x 210 x 350 mm) |
| Weight | 30.9 lbs (14 kg) |
| Frequency Response | 45 Hz - 40 kHz (-3 dB) |
| Sensitivity | 89 dB (2.83 V/1m) |
| Impedance | 8 Ohms (compatible 4 Ohms) |
| Recommended Amplifier Power | 20 - 200 W per channel |
| Drive Units - Tweeter | 1" Pinnacle ring radiator tweeter |
| Drive Units - Midrange | Two 4" midrange drivers |
| Drive Units - Bass | Two 6.5" low-distortion woofers |
| Crossover Frequency | 500 Hz / 2.4 kHz |
| Enclosure Type | Sealed (acoustic suspension) with curved cabinet |
| Connections | Dual gold-plated binding posts for bi-wiring/bi-amping |
| Cabinet Finish | Walnut or Black with high-gloss top and real wood veneer |
| Magnetically Shielded | Yes (no interference with video displays) |
| Mounting Options | Designed for shelf or stand placement; keyhole slots available |
| Care and Maintenance | Wipe with a soft dry cloth; avoid harsh chemicals or abrasives |
| Safety Features | Rubber feet for vibration isolation; stable base prevents tipping |
| Spare Parts and Repairability | Replacement drivers and crossover components available via Polk authorized service centers |
| Country of Origin | Designed and tuned in the USA |
Frequently Asked Questions - Legend L400 POLK
What is the best way to position the Legend L400 center channel speaker?
Place the L400 at ear level when seated, ideally directly above or below the display. Ensure the front baffle is not obstructed. For best stereo imaging, angle the speaker toward the listening position if using a lower stand.
Can I use the Legend L400 as a regular stereo speaker instead of a center channel?
While it is engineered primarily as a center channel, the L400 can be used in a stereo system. Its dual woofers and midrange arrays deliver wide dynamic range, but optimal performance may be achieved by partnering with L200 or L100 bookshelf speakers.
Does the L400 require a special amplifier or can it work with my existing A/V receiver?
The L400 has a nominal impedance of 8 ohms and sensitivity of 89 dB, making it compatible with most A/V receivers. Polk recommends 20-200 watts per channel for best dynamic headroom.
What is the recommended break-in period for the Legend L400?
We suggest 20-40 hours of normal playback to allow the drivers and crossover to mechanically break in. During this period, you may notice slight variations in bass response and high-frequency detail, which will stabilize afterward.
How do I clean and maintain the speaker cabinets?
Use a soft, lint-free microfiber cloth slightly dampened with water to remove dust and fingerprints. Avoid using any solvents, ammonia-based cleaners, or abrasive pads. For high-gloss surfaces, dry with a separate soft cloth to prevent streaks.
Can I bi-wire or bi-amp the L400?
Yes, the dual gold-plated binding posts allow for bi-wiring or bi-amping. Remove the metal jumpers between the terminals, connect the high-frequency section to one amplifier output and the low-frequency section to another (or separate cables from a single amp). Ensure correct polarity.
Is the L400 magnetically shielded for placement near a television?
The L400 is magnetically shielded, so it can be placed on or near a CRT television without causing picture distortion. For modern LCD/OLED displays, shielding is generally not required but remains a safe practice.
What are the dimensions and weight, and will it fit on my shelf?
The L400 measures 22.05" W x 8.27" H x 13.78" D (560 x 210 x 350 mm) and weighs 30.9 lbs (14 kg). Ensure your shelf or stand can support this weight and that there is at least 2 inches (5 cm) of clearance behind the port (if any) for proper airflow.
Why does my center channel sound muddy or muffled?
Check that the tweeter and midrange drivers are not blocked by cloth or furniture. Verify correct polarity (red to red, black to black) and that the speaker is not placed inside a closed cabinet, which can cause reflections and color the sound.
What warranty and repair options are available for the Legend L400?
Polk Audio offers a 5-year limited warranty for speakers purchased from authorized dealers. For service, contact an authorized Polk service center. Replacement drivers and crossover parts are available to maintain the speaker's long-term performance.
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USER MANUAL Legend L400 POLK
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Product information
Brand : POLK
Model : Legend L400
Category : Loudspeaker