R3.12 - Subwoofer Soundstream - Free user manual and instructions

Product Type	Subwoofer
Brand	Soundstream
Model	R3.12
Speaker Size	12 inches
Impedance	4 ohms
RMS Power	300 Watts
Peak Power	600 Watts
Frequency Response	25 Hz - 500 Hz
Sensitivity	88 dB
Voice Coil	Single 4-ohm
Mounting Depth	6.5 inches
Mounting Cutout Diameter	11.2 inches
Overall Diameter	12.5 inches
Weight	8.5 lbs
Recommended Enclosure Volume	1.0 - 1.5 cu ft sealed
Recommended Amplifier Power	200 - 600 Watts RMS
Frequency Range for Bass	20 Hz - 80 Hz
Surround Material	Rubber
Cone Material	Polypropylene
Magnet Type	Ferrite
Connection Type	Spring-loaded terminals
Recommended Use	Car audio subwoofer
Cleaning Instructions	Wipe with dry cloth; avoid solvents
Safety Note	Use within rated power to avoid damage

Frequently Asked Questions - R3.12 Soundstream

What is the impedance of the Soundstream R3.12 subwoofer?

The Soundstream R3.12 has a single 4-ohm voice coil, making it a 4-ohm subwoofer.

What is the RMS power rating of the R3.12?

The RMS power rating is 300 Watts, with a peak power handling of 600 Watts.

What size enclosure is recommended for the R3.12?

For a sealed enclosure, the recommended internal volume is 1.0 to 1.5 cubic feet.

Can I use the R3.12 in a ported enclosure?

Yes, it can be used in a ported enclosure. A typical vented box volume is around 2.0 cubic feet tuned to 35 Hz.

What is the frequency response of the Soundstream R3.12?

The frequency response is 25 Hz to 500 Hz, optimized for low-frequency reproduction.

What amplifier power should I use with the R3.12?

We recommend an amplifier delivering 200-600 Watts RMS at 4 ohms for best performance.

What are the mounting dimensions of the R3.12?

The overall diameter is 12.5 inches, mounting depth is 6.5 inches, and cutout diameter is 11.2 inches.

Is the Soundstream R3.12 suitable for home audio use?

While designed for car audio, it can be used in home theater with a suitable enclosure and amplifier, but impedance and power requirements must be matched.

How do I clean the Soundstream R3.12 subwoofer?

Gently wipe the cone and surround with a dry, soft cloth. Do not use any liquids or cleaning solvents as they may damage the materials.

What type of surround does the R3.12 have?

The subwoofer features a durable rubber surround for long-lasting performance and flexibility.

USER MANUAL R3.12 Soundstream

Thank you for choosing SOUNDSTREAM woofers. Designed and engineered in the USA, this product combines innovative technology with the finest materials to consistently deliver Absolutely State of the AI performance, sound quality, reliability, and value. This SOUNDSTREAM product reflects our commitment to offer you unparalleled performance and quality for years of dependable service and listening enjoyment.

Features, Parameters, & Dimensions

Pressed Paper Pulp Cone

High Roll Foam Surround

2.5" 4-layer VC on Aluminum Former Nickel Plated 8ga. Compression Terminals

Poly-Cotton Suspension Spider

Vented T-Yoke Back-plate

Woven Fiber Dust Cap

Textured Basket with Voice Coil Cooling

R3-8

R3-10

R3-12

R3-15

IMPEDANCE	DUAL 2OHM	DUAL 2OHM	DUAL 2OHM	DUAL 2OHM
RE 2.2122 2.1	802 2.1672 2.2	146
Fs (Hz) 39.04	85 34.58 33.72	31.38
QES	1.3713 1.2530	1.1741 1.3086
QMS	7.1915 7.3411	6.2245	5.3272
QTS	1.1517 1.0703	0.9878 1.0505
LE (MH)	0.9283 1.0274	0.9794 1.0310
DIAM	8INCH	10INCH	12INCH	15INCH
SD	50.2655 IN^2	78.5398 IN^2	113.097 IN^2	176.7146 IN^2
VAS	18.3920 33.38	93 59.8989	296.8294
BL 7.3081 9.3	526 10.4883	7.3069
MMS	134.9398	231.3417	281.2842	160.0019
SEN	80.77 82.17 8	4.66	90.20
RMS/MAX	700/1000	1000/1200	1200/2500	1400/3000
CUTOUT D.	7.8INCH	9.6INCH	11.6INCH	14.5INCH
MOUNT D.	5.25INCH	6INCH	6 7/8 INCH	7 5/8 INCH

Enclosure Dimensions

Included in this manual are a number of different enclosure suggestions. These are by no means the only enclosures to use, but the provide a starting point to determine the correct enclosure for your needs many factors must be addressed (amount of power, vehicle, placement, crossovers, etc) Therefore, as always, SOUNDSTREAM recommends that your subwoofer be installed by an authorized SOUNDSTREAM dealer.

Enclosure Construction

All enclosures should be made of .75" (3/4") material only. When possible, make the baffle 1.5" (1 12 ) thick and add .75" (3/4") to the depth of the enclosure to compensate. All volumes INCLUDE vent/port and subwoofer displacements. DO NOT change the volume unless you plan on adding a substantial amount of bracing. For added performance, applying a coat of fiberglass resin to the interior walls will greatly improve sealing the enclosure. Adding a thin layer of poly-fill will improve response by smoothing out reflections within the enclosure.

Enclosure Recommendations

SEALED R3-8 R	3-10 R3-12 R3-15
MIN .50 CU FT.	.75 CU FT. 1.0 CU FT. 1.5 CU FT.
OPTIMUM	.75 CU FT. 1.0 CU FT. 1.5 CU FT. 2.75 CU FT.
PORTED
MIN	1.0 CU FT.	1.0 CU FT.	1.5 CU FT.	2.0 CU FT.
PORT WxL	3” x 7”	3”x5.5”	4”x5”	5”x7.8”
F3 (Hz)	35	34	38	30
OPTIMUM	1.25 CU FT.	1.5 CU FT.	2.25 CU FT.	2.75 CU FT.
PORT WxL	4” x 6.7”	4” x 6”	6” x 7”	6” x 7”
F3 (Hz)	33	32	34	28