
REFERENCE SUBWOOFER
MAXXSONICS USA, INC
1290 Ensell Road
Lake Zurich, Illinois 60047 USA
E-Mail: info@maxxsonics.com
Website: www.maxxsonics.com
www.mbquart.com
.
RLP204 / RLP254 / RLP304

RLP204 / RLP254 / RLP304
The diagram below shows a screw pattern for mounting your subwoofer. It is very important
that you follow this pattern as indicated or your cosmetic trim ring will not fit properly.
2

RLP204
T/S PARAMETERS
Fs: 41.5 Hz
Qms: 4.66
Vas: 12.19 liters
Cms: 192.42um/N
RECOMMENDED ENCLOSURE (SEALED)
SMALL BOX
(Tight Bass)
Total Internal Volume:
.25 Cubic Feet
Qtc: 1.013
Mms: 76.26 g
Xmax: 8.15 mm
Dia: 163.98 mm
Sd: 0.021 sq.m
(coils in series)
Vd: 0.172 liters
Qes: 1.01
Re: 6.2 ohms
NomZ: 7.44 ohms
BL: 11.04 Tm
QTS: 0.83
no: 0.081 %
1W/1M: 81.23 dB
10.75” Tall
F3: 53Hz
Heavy Polyfill
Optimal Sound Quality
(Flat Response)
Total Internal Volume:
.50 Cubic Feet
Qtc: 0.866
F3: 46Hz
Heavy Polyfill
5.5” Deep
10.75” Wide
11.75” Tall
8.5” Deep
11.75” Wide
* Boxes have been designed using 1/2” MDF.
Dimensions can be changed as long as recommended volumes
remain the same.
Subwoofer Displacement is .035 Cubic Feet
5

RLP254
T/S PARAMETERS
Fs: 33.95 Hz
Qms: 5.44
Vas: 27.55 liters
Cms: 168.01 um/N
RECOMMENDED ENCLOSURE (SEALED)
SMALL BOX
(Tight Bass)
Total Internal Volume:
.4 Cubic Feet
Qtc: 1.094
Mms: 130.81 g
Xmax: 8.65 mm
Dia: 208 mm
Sd: 0.034 sq.m
(coils in series)
Vd: 0.294 liters
Qes: 0.963
Re: 6.9 ohms
NomZ: 8.28 ohms
BL: 14.137 Tm
QTS: 0.819
no: 0.108 %
1W/1M: 82.4 dB
12.5” Tall
F3: 47Hz
Heavy Polyfill
Optimal Sound Quality
(Flat Response)
Total Internal Volume:
.65 Cubic Feet
Qtc: 0.959
F3: 42Hz
Heavy Polyfill
6.25” Deep
12.5” Wide
12.5” Tall
9.5” Deep
12.5” Wide
* Boxes have been designed using 1/2” MDF.
Dimensions can be changed as long as recommended volumes
remain the same.
Subwoofer Displacement is .06 Cubic Feet
7

RLP304
T/S PARAMETERS
Fs: 29.13 Hz
Qms: 6.928
Vas: 53.98 liters
Cms: 171 um/N
RECOMMENDED ENCLOSURE (SEALED)
SMALL BOX
(Tight Bass)
Total Internal Volume:
.5 Cubic Feet
Qtc: 1.25
Mms: 174.42 g
Xmax: 9 mm
Dia: 245 mm
Sd: 0.047 sq.m
(coils in series)
Vd: 0.424 liters
Qes: 0.952
Re: 7.05 ohms
NomZ: 8.46 ohms
BL: 15.38 Tm
QTS: 0.837
no: 0.135 %
1W/1M: 86 dB
14” Tall
F3: 46Hz
Heavy Polyfill
Optimal Sound Quality
(Flat Response)
Total Internal Volume:
.75 Cubic Feet
Qtc: 1.10
F3: 40Hz
Heavy Polyfill
7” Deep
14” Wide
14” Tall
9.8” Deep
14” Wide
* Boxes have been designed using 3/4” MDF.
Dimensions can be changed as long as recommended volumes
remain the same.
Subwoofer Displacement is .078 Cubic Feet
9

MAXXSONICS USA, INC
1290 Ensell Road
Lake Zurich, Illinois 60047 USA
E-Mail: info@maxxsonics.com
Website: www.maxxsonics.com
www.mbquart.com
Maxxsonics Limited Warranty
As the manufacturer of Maxxsonics, Autotek, Crunch, MB Quart and Hifonics car audio
products, Maxxsonics USA Inc. Warrants to the original consumer purchaser the
amplifier to be free from defects in material and workmanship for one (1) Year from
date of purchase.
All other parts and accessories of the system are warrantied to be free from defects in
material and workmanship for one (1) year from date of purchase. Maxxsonics will
repair or replace at it’s option and free of charge during the warranty period, any system
component that proves defective in materials and workmanship under normal installation,
use and service provided that the product is returned to the authorized Maxxsonics dealer
from where it was purchased. A photo copy of the original receipt must accompany the
product being returned.
Valid purchase receipts will contain the name and address of the authorized reseller.
Any damage to the product as a result of misuse, abuse, accident, incorrect wiring,
improper installation, alteration of date code or bar code labels, revolution, natural
disaster, or any sneaky stuff because someone messed up, repair or alteration out side
of our factory or authorized service centers and any thing else you have done that you
should not have done is not covered.
This warranty is limited to defective parts and specifically excludes any incidental
or consequential damages connected therewith. This warranty is not to be construed
as an insurance policy.
Warranty on installation labor, removal, re-installation and freight charges are not the
responsibility of Maxxsonics USA Inc.
Warranty products damaged as a result of insufficient or improper packing materials
are not covered by this limited warranty and such damaged product will be returned
“as is” at the expense of the owner.
RLP204 / RLP254 / RLP304