MFW-15 Enjoyment Guide Picture of MFW 15 Subwoofer
Table of Contents Safety Precautions 3 Thank You for your MFW-15 purchase 4 Unpacking and Product Registration 5 Inventory 5 Getting Started 5 Limited Warranty Coverage 5 Register your AV123 subwoofer at AV123.
Safety Precautions At AV123, we don’t want to see any of our customers experience the inconvenience or unfortunate mishap of a precaution that was ignored. Please review the following precautions so you may enjoy your AV123 MFW-15 subwoofer without unnecessary damage or misuse. I M P O R TA NT! PLEASE READ THESE INSTRUCTIONS CAREFULLY 1) If you suspect you have a component failure in your subwoofer (or any of our products for that matter) at any time, please call AV123 for help.
Thank You for your MFW-15 purchase Dear Home Entertainment Enthusiast, At AV123, our absolute highest priority begins and ends with you, the customer. As our valued customer, you can rest assured that if you’re not 100% satisfied with your purchase within 30 days from your original receipt date, you may return your product(s) for a prompt refund in full (excluding shipping charges) with no explanation necessary.
Unpacking and Product Registration The AV123 MFW-15 subwoofer should reach you in absolutely perfect condition. If you notice any shipping damage or other issues upon unpacking the unit, please contact AV123 immediately. We have gone out of our way to ensure AV123 products are shipped with the utmost care, but if that is not the case when they arrive at your door, please do not hesitate to contact us.
Features and Descriptions MFW-15 Subwoofer Woofer • 15” Long Throw, Low FS, “Mass Loaded” Woofer • XX Ounce Magnet • 18-200Hz Effective Frequency Response • 2.5” inch Voice Coil Sample photos shown for concept.
Subwoofer Placement Considerations Achieving the best performance from your AV123 subwoofer and other audio system speakers requires several details to follow when setting up your speakers and placing your subwoofer. Tips and suggestions for the most desirable placement techniques are listed throughout this section.
Fine Tuning One trick experienced home entertainment installers sometimes use is to feed a low frequency test tone to the subwoofer input while it’s placed in the listening position and then as you walk around the room you will identify places where low frequency is greater (or less evident). This is easier than moving the subwoofer around.
Connections For the best sound quality and signal transfer, AV123 recommends a minimum of 16 gauge high quality, multi stranded, oxygen free copper speaker cables if using the speaker level inputs on MFW-15. For preamp level connections, use high quality, oxygen free copper audio cables. MFW-15 Subwoofer Connections Although there is technically no connection necessary to the driver itself (we’ve already done that part) you do have to choose connections for the audio input to the x-sub subwoofer.
Dedicated LFE Input This is the recommended input to use if your x-sub is part of a multi-channel home theater with discrete outputs on the preamplifier/processor for an “LFE” (Low Frequency Effects) channel. There is only a single RCA for this input (pictured at left in the illustration) because the signal has already been summed into a mono channel in the preamplifier and it bypasses the crossover filtering because that function is controlled by the LFE processing functions upstream.
Calibration Calibrating your speaker levels will ensure that the effort you’ve taken to correctly position the speakers themselves will pay off when you finally sit down to enjoy them. SPL Measurements To accurately calibrate levels, you’ll need an SPL meter. Radio Shack sells a digital meter that works very well for this purpose (P/N 33-2055) and it’s about $50. Set the meter on ‘slow’ and “C” weighting.
5) Begin by setting the levels of the main, center, and surround speakers one at a time. While pointing the meter toward the speaker active with the test tone, set each channel to the same reference level while the SPL meter remains about in the listening position. Your goal is to establish an even output level of each speaker from that spot. Setting the MFW-15 Subwoofer Gain 6) Once finished with the other speakers in the system, direct the test tone to the subwoofer.
adjustable crossover in the MFW-15. Begin at the highest setting (180Hz) and slowly dial it down until it seems as if the bass is anchored in the front speakers rather than just the subwoofer. We strongly recommend settings above 80Hz because this will allow a nice blend with the other system speakers without making them work too hard with reproducing the bulk of the low frequencies.
Technical Specifications MFW-15 Subwoofer System Description: 2 Way (6.5” Long Throw Woofer and Treated Fabric Dome Tweeter) Enclosure Type: Vented, Rear Firing Frequency Response (+/-3dB): 55Hz- 20 KHz Nominal Impedance: 8 Ohms Sensitivity: 87dB @ 1w/1m Crossover: 1750Hz, 2nd Order Raw Weight: 32 lbs pair / 14.5 kg pair Shipping Weight: 40 lbs pair / 18.18 kg pair Dimensions: 8.5” W x 13.5” H x 12.
Limited Warranty and Return Policies The AV123 MFW-15 subwoofer has been designed and manufacturer to perform flawlessly for many years with regular use. As a result of this quality and craftsmanship, AV123 is proud to offer the following warranty policies to our customers: • All products sold through AV123 carry a limited manufacturer’s parts and labor warranty. This is for the piece of mind that, no matter what your purchase, there is some type of limited warranty on which you can depend.
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