Troubleshooting; Specifications - Boss Audio Systems MR4.3W User Manual

Troubleshooting

Distortion/Knocking sound
• If you hear distortion from the speakers, immediately lower the volume level of your receiver. Those sounds
often indicate that either the receiver or the speaker is being overdriven, and damage can result from
playing your source material (music-CDs-DVD-MP3) at high volume levels for prolonged periods of time.
You should also avoid turning the bass or treble fully up and using your "Loudness button" when the volume
level is at or above normal listening levels (Note: The Loudness button on most receiver is designed to add
depth when your system is being used for background music or at very low volume).
• Distorted or unnatural sound can indicate poor connections, defective electronics, damaged source material
or speaker failure. If only one of your speakers has poor sound quality, check the speaker wire and audio
connections. If that does not fix the problem, try putting each speaker in place of one another (swapping).
If the sound remains poor on the suspect speaker after swapping location and the distortion moves with
the speaker to the new location, the speaker may be the problem. If the distortion remains in the original
location then the problem is elsewhere in your audio/video system.

Specifications

3-way system ............................................... Yes
Woofer ......................................................... 4" (102 mm), polyelite PVA surround
Midrange ...................................................... 1.58" (40 mm), polypropylene
Tweeter ........................................................ 0.79" (20 mm), piezo dome
Output power ............................................... max 200 W
Nominal impedance ..................................... 4 Ω
Frequency response .................................... 80 Hz-18 kHz
System sensitivity ........................................ 85 dB (1 watt/1 meter)
Dimensions (H x W x D) .............................. 8.83" x 5.38" x 5.38" (224.3 x 136.7 x 136.7 mm)
Weight ......................................................... 7.4 lbs (3.4 kg)
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