Boss Audio Systems | MR652C | Owner Manual | Boss Audio Systems MR652C Owner manual

Boss Audio Systems MR652C Owner manual
MR652C
MR752C
1” PEI Dome
1” PEI Dome
350
400
90
92
40-20kHz
60-20kHz
62mm / 2 7/16”
70mm / 2 3/4”
4 ohms
4 ohms
Sealed Enclosure Volume (cu.ft)
0.43
0.71
Ported Enclosure Volume (cu.ft)
0.9
1.25
Ported diameter (mm/in)
50mm(2”)
60mm(2-3/8”)
Port length (mm/in)
25mm(1”)
30mm(1-3/16”)
Tweeter Type
Max Power (watts)
Efficiency (1W/1M)
Frequency Response
Min. Mounting Depth Allowing
Clearance(mm/in)
Impedance
Calculating Required Enclosure Volume
These loudspeakers will perform best if they are installed in a sealed or a
ported enclosure with the appropriate interior volume. Please refer to the
tables for the suggested volume for your speaker and application.
These volumes are provided in the table above are in cubic feet. In order
to design your enclosure, you will first need to convert this data to cubic
inches. To convert cubic feet to cubic inches, simply multiply by 1728:
Model
Sealed volume
Ported volume
MR652C
743 cu in.
1227 cu in.
MR752C
1572 cu in.
2160 cu in.
Calculating Enclosure Dimensions
Calculating the exterior cabinet dimensions requires that you first
estimate height and width of the enclosure based on the available space
in your boat. You then work with this estimate to determine the depth of
the cabinet.
For example:
1. You want an MR652C sealed enclosure with exterior dimensions of
8"W x 10" H.
2. Subtract the cabinet material thickness (3/4" MDF x 2) from the
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exterior W X H = 6.5" x 8.5" (this yields the interior W x H).
3. Multiply (interior width) x (interior height): 6.5" x 8.5" = 55.25".
4. Divide the required interior volume from the table by this number: 743
÷ 55.25 = 13.45". This reveals the interior depth required.
5. Add 1-1/2" to this dimension to calculate exterior depth: 13.45" + 1.5" =
12.95".
In the above example we showed that one possible sealed cabinet size
for MR652C is approx. 8" x 10" x 13". We can see that if a 13" deep
enclosure cannot be accommodated in your boat, it will be necessary to
increase the height, width or both to come out with an enclosure of
acceptable size with the appropriate interior volume.
Important considerations when building an enclosure
Be sure that the cabinet is air-tight. Joints should be glued and caulked
on the interior of the joints.
For marine cabinets which may be exposed to moisture, be sure to use an
appropriate marine varnish to seal the surface of the MDF well.
Wiring
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SPEAKER DIMENSIONS
6.5-INCH
7.5-INCH
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6.5-INCH FULL RANGE
MARINE SPEAKER
6.5”(165mm) CUSTOM TOOLED HIGH EFFICIENCY
POLY INJECTION CONE
BUTYL RUBBER SURROUND
1-1/2”(38mm) ALUMINUM VOICE COIL
350 watts peak / 175 watts RMS
FREQUENCY RESPONSE:60Hz-20KHz
SENSITIVITY:90dB(1WATT/1METER)
IMPEDANCE:4 OHMS
MOUNTING DEPTH:2-7/16”(62mm)
MOUNTING DIAMETER:6 2/16”(156mm)
7.5-INCH FULL RANGE
MARINE SPEAKER
7.5”(190mm) CUSTOM TOOLED HIGH EFFICIENCY
POLY INJECTION CONE
BUTYL RUBBER SURROUND
1-1/2”(38mm) ALUMINUM VOICE COIL
400 watts peak / 200 watts RMS
FREQUENCY RESPONSE:40Hz-20KHz
SENSITIVITY:92dB(1WATT/1METER)
IMPEDANCE:4 OHMS
MOUNTING DEPTH:2-3/4”(70mm)
MOUNTING DIAMETER:6 11/16”(169.5mm)
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