Polk Audio MM691
Released July, 2008
The Pros:Installation is quick and straight forward, no special considerations. Sound is full and resonant. Lows are detailed and clear, no boom or distortion.
The Cons:Some harshness in the highs. Need to mount the crossover for the tweeter and woofer separately. Speaker wire on the cross over is short, makes tucking everything away difficult.
The Polk Audio MM691 is a high performance 3-way 6" x 9" speaker that is designed for sport vehicles such as Jeeps and boats. These speakers are based on the flagship SR Series but maintain a competitive price.
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Key features include Neodymium Magnets(light weight rare earth metal), Carbon Composite Baskets, Woven Glass Composite Cones which offer a high stiffness-to-mass ratio for more precision, Large(30mm)-Diameter Voice Coils for increased power handling, and a power handling capacity of 125w(rms). Stylish grilles are also included.
- Frequency response: 30-25kHz
- Nominal Impedance: 2.7 ohms
- Power Handling(continuous): 125w
- Power Handling(peak): 300w
- Efficiency: 94db
- Mid/Woofer: 6" x 9"
- Midrange: 1" Diameter Tweeter
- Tweeter: 3/4" Diameter Super Tweeter
- Full-range Mounting Depth(top mount): 3 3/16", bottom mount: 3 1/2"
User Reviews (2)
installation is quick and straight forward, no special considerations
sound is full and resonant
lows are detailed and clear, no boom or distortion
some harshness in the highs
need to mount the crossover for the tweeter and woofer separately
speaker wire on the cross over is short, makes tucking everything away difficult
bass range lacks power, need a separate subwoofer for proper representation
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