Motion Foundation B2 - Speaker Martin Logan - Free user manual and instructions
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| Product Type | Bookshelf Speaker |
| Brand | Martin Logan |
| Model | Motion Foundation B2 |
| Dimensions (H x W x D) | 12.0" x 7.0" x 9.5" |
| Weight | 15.4 lbs |
| Power Handling | 150 W RMS |
| Frequency Response | 48 Hz - 25 kHz |
| Sensitivity | 88 dB @ 2.83 V/1m |
| Impedance | 4 ohms |
| Drivers | 1" Folded Motion Tweeter, 5.5" Aluminum Cone Woofer |
| Enclosure Type | Bass-Reflex with Rear-Firing Port |
| Finishes | Black, White, Walnut |
| Input Terminals | Bi-Wire Binding Posts |
| Magnetic Grille | Yes |
| Recommended Amplifier Power | 30 - 200 W |
| Care Instructions | Wipe with a soft, dry cloth. Avoid liquids and abrasive cleaners. |
| Safety Notes | Place on a stable surface. Do not block the rear port. Keep away from moisture. |
| Spare Parts Availability | Contact authorized Martin Logan dealers or service centers. |
| Repairability | Repairs by qualified personnel only. Genuine parts are available. |
| Warranty | 5 years limited (drivers and cabinet), 1 year (electronics) |
Frequently Asked Questions - Motion Foundation B2 Martin Logan
What is the recommended placement for the Motion Foundation B2 speakers?
Place the speakers on sturdy bookshelves or stands at ear level when seated. Keep them at least 6 inches from the rear wall to allow bass port to breathe. Avoid corners to prevent excessive bass boom.
How should I connect the speakers to my amplifier?
Use high-quality speaker wire with banana plugs or bare wire. Strip about 1/2 inch of insulation, twist the strands, and clamp into the binding posts. For bi-wiring, remove the jumper plates and connect separate cables to the tweeter and woofer terminals.
Is there a break-in period for these speakers?
Yes, allow 30-50 hours of normal use for the suspension and drivers to loosen up. The sound will become more open and detailed over time.
What is the Folded Motion tweeter technology?
The Folded Motion tweeter uses a pleated diaphragm that moves in a precise, controlled manner to produce highly detailed and accurate high frequencies with low distortion and wide dispersion.
Can I use these speakers in a home theater system?
Absolutely. They work well as front left/right speakers in a surround system. Match with a Martin Logan center channel and subwoofer for a seamless timbre.
How do I clean the speaker cabinet and grille?
Use a soft, lint-free cloth slightly dampened with water for the cabinet. For the grille, gently vacuum or use a soft brush. Avoid any solvents or harsh cleaners.
What amplifier power is recommended?
An amplifier with 30 to 200 watts per channel is ideal. Ensure the amplifier is stable into 4 ohm loads for best performance.
Do the speakers come with a warranty?
Yes, Martin Logan offers a 5-year limited warranty on drivers and cabinet, and 1 year on electronics. Retain your original receipt for service.
Can I mount these speakers on a wall?
The Motion Foundation B2 is designed for bookshelf or stand placement. Wall mounting is not recommended as it may affect sound quality and block the rear port. Use sturdy speaker stands instead.
What should I do if one speaker stops working?
Check the speaker wire connections at both ends and ensure the amplifier channel is functional. Swap the speakers to isolate the issue. If the problem persists, contact an authorized Martin Logan service center for repair.
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