Cat. No.
40-1017
PRO-CSW800 8" Car Subwoofer
Your RadioShack PRO-CSW800 8" Car Subwoofer lets
you increase the bass response of your vehicle’s sound
system. When mounted inside an enclosure, your subwoofer’s high-output, low-distortion design provides quality bass sound reproduction. The subwoofer’s long-travel
voice coil lets it handle high input power with ease.
ENCLOSURE SIZES
After you choose an enclosure type for your subwoofer,
for the best results, build the enclosure to the dimensions
recommended in this section.
Acoustic Suspension (sealed)
C
A
B
A
C
B
Note: To connect the subwoofer to your stereo amplifier’s
wires, you need 2 banana plugs such as Cat. No. 278306 (not supplied).
CHOOSING AN ENCLOSURE
To get the best performance from your subwoofer, you
must mount it inside an enclosure. An enclosure makes
your subwoofer more efficient and improves its sound
quality.
11
× 11 × 91/2 Inches (HWD)
.50 Cubic Feet (.47 net)
A (2) — 11" × 11" (one with 71/16" diameter cutout)
B (2) — 11" × 91/2" HW
C (2) — 91/2" × 91/2" HW
F3: 63 Hz
Ripple: 0 dB
Excursion Limited Power Handling: 79 Watts
Ported Reflex (vented)
Some common enclosure designs are:
• Acoustic suspension (sealed)
C
B
A
• Ported reflex (vented)
• Single reflex bandpass (vented)
For more information about a single reflex bandpass enclosure, see “Single Reflex Bandpass (vented)” on
Page 2.
C
A
B
To learn more about and build an acoustic suspension or
ported reflex enclosure, we recommend you use the book
Building Speaker Systems (Cat. No. 62-1087A, available
at your local RadioShack store) along with this Owner’s
Manual. That book has complete information about building enclosures, including obtaining construction materials, and design and construction tips.
Note: Check with RadioShack Unlimited for a pre-built
enclosure for this subwoofer.
11 × 11 × 141/4 Inches (HWD)
.75 Cubic Feet (.70 net)
A (2) — 11" × 11" (one with 71/16" diameter cutout)
B (2) — 11" × 141/4" HW (one with 2" diameter cutout)
C (2) — 91/2" × 141/4" HW
Tuning Frequency: 37 Hz
F3: 46Hz
Ripple: 1.3 dB
Excursion Limited Power Handling: 96 Watts
© 1998 Tandy Corporation.
All Rights Reserved.
RadioShack is a registered trademark used by Tandy Corporation.
Single Reflex Bandpass (vented)
A
Note: You can mount an optional speaker plate on your
enclosure (such as Cat. No. 274-630) to make it easy to
connect the subwoofer to your stereo amplifier. This lets
you connect the subwoofer to the plate, then connect the
plate to your stereo amplifier.
C
D
Follow these steps to connect the subwoofer directly to
your sound system.
B
D
A
C
11 × 11 × 201/4 Inches (HWD)
1.02 Cubic Feet (.50 Sealed/.52 Vented)
Inside Distance from Baffle to End Panel of
Sealed Side of Enclosure — 91/2"
1. Run one wire from each of the subwoofer’s terminals
to the stereo amplifier.
2. Separate each wire’s two conductors at both ends for
a length of about 2 inches, then strip the insulation
from the ends of each conductor to expose 1/2 inch of
wire.
22inches
inches
A (2) — 11 × 11 Inches
B (1) — 91/2" × 91/2" (with 71/16" diameter cutout)
C (2) — 11" × 201/4" HW (with cutout for 3 in. vent)
D (2) — 91/2" × 201/4" HW
Tuning Frequency: 73 Hz
F3: 46–111 Hz
Ripple: 0 dB
Excursion Limited Power Handling: 54 Watts
A single reflex bandpass enclosure combines the features of acoustic suspension and ported reflex designs. In
this type of enclosure, one side of the subwoofer is
mounted in an acoustic suspension enclosure, while the
other side is mounted in a ported reflex enclosure.
1/2
inch
/2 inch
1
3. Twist the endcap from a banana plug (not supplied)
to remove it, route one of the speaker’s wires through
the endcap, then fold the exposed wire around the
top of the endcap.
Endcap
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Speaker
Wire
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A single reflex bandpass enclosure controls the movement of the speaker’s cone at low frequencies (like an
acoustic suspension enclosure), and has the ability to
sacrifice efficiency for deeper bass or vice versa. The frequency response of the single reflex bandpass enclosure
is controlled by the volume of the enclosure.
4. Screw the banana plug back onto the endcap as
shown here.
Due to the complexity of its construction, a single reflex
bandpass enclosure can be difficult to design and build. If
you are inexperienced at building enclosures, we recommend that you build an acoustic suspension or ported reflex enclosure.
5. Repeat Steps 3 and 4 for each of the subwoofer’s
wires.
CONNECTING THE SUBWOOFER TO
YOUR STEREO AMPLIFIER
We recommend you use 12-gauge or thicker wire (such
as Cat. No. 278-1268, not supplied) to connect the subwoofer to your stereo amplifier. For the maximum bass
response and the best overall performance, be sure to
connect + to + and – to –.
2
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6. Press the banana plugs into the subwoofer’s terminals to connect them.
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SPL(dB) 1W/1m
FREQUENCY RESPONSE
94
91
88
85
82
79
76
73
70
67
30
20
40
50
60
70
80
90
100
Frequency (Hz)
3
0.5 Ft Acoustic Suspension
0.75 Ft3 Ported Reflex
1.02 Ft3 Single Reflex Bandpass (s=0.7)
SPECIFICATIONS
Frequency Range .................................................................................................................................................. 38–400 Hz
Resonant Frequency ............................................................................................................ ...................................... 45.1 Hz
Power Handling .................................................................................................................... 100 Watts RMS/200 Watts Max
Nominal Impedance ................................................................................................................................................... 4 Ohms
2
Piston Area ................................................................................................................................................. 33.8 In , .0218 M
2
Magnet Weight ............................................................................................................................................................... 20 oz
Flux Density ............................................................................................................................................................... 7.21 Tm
DC Voice Coil Resistance ..................................................................................................................................... 2.89 Ohms
Voice Coil Inductance ................................................................................................................................................. 1.1 mH
Total Q Factor ............................................................................................................................................................. .57 Qts
Electrical Q Factor ...................................................................................................................................................... .60 Qes
Mechanical Q Factor ............................................................................................................................................. 12.07 Qms
Equivalent Acoustic Volume ......................................................................................................................................... .77 Ft
3
Mechanical Suspension Compliance .................................................................................................................... .326 mm/N
Mechanical Mass of Cone Assembly and Free Air Load ............................................................................ .................. 38.2 g
Mechanical Mass of Cone Assembly only .................................................................................................................... 36.4 g
Peak to Peak (maximum) Linear Excursion ............................................................................................................... .4025 In
Sensitivity .................................................................................................................................... 88.4 dB (1 Watt @ 1 Meter)
Cone .................................................................................................................................. 8 Inches, Wet Look Treated Fiber
Voice Coil .................................................................................................................................... 1 Inch, Kapton MTB Former
Surround (material of construction) ............................................................................................................... Polyether Foam
Connectors .............................................................................................................................................. 5-Way, Gold-Plated
Mounting Cutout ................................................................................................................................................... 71/16 Inches
(17.85 cm)
Mounting Depth ..................................................................................................................................................... 31/2 Inches
(8.89 cm)
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.
3
Limited Ninety-Day Warranty
This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for ninety (90) days from the date of purchase from RadioShack companyowned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED
HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES,
INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES
CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE
OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of incidental or consequential damages, so the above limitations or exclusions may not apply to you.
In the event of a product defect during the warranty period, take the product and the RadioShack
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise provided by law: (a) correct the defect by product repair without charge for parts and
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase
price. All replaced parts and products, and products on which a refund is made, become the property of RadioShack. New or reconditioned parts and products may be used in the performance of
warranty service. Repaired or replaced parts and products are warranted for the remainder of the
original warranty period. You will be charged for repair or replacement of the product made after the
expiration of the warranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs
of product removal, installation, set-up service adjustment or reinstallation.
This warranty gives you specific legal rights, and you may also have other rights which vary from
state to state.
RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102
We Service What We Sell
3/97
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
4/98
21A2650
Printed in the USA