Reference R3.15 - Subwoofer Soundstream - Free user manual and instructions

Product Type	Subwoofer
Brand	Soundstream
Model	Reference R3.15
Size	15 inches
Impedance	4 ohms (dual voice coil)
Power Handling (RMS)	800 watts
Power Handling (Peak)	1600 watts
Frequency Response	20 Hz – 200 Hz
Sensitivity	88 dB (1W/1m)
Mounting Depth	7.5 inches
Mounting Hole Diameter	14 inches
Enclosure Type	Sealed or ported (recommended)
Voice Coil	Dual 4-ohm
Cone Material	Injection-molded polypropylene
Surround Material	High-roll foam
Basket Material	Stamped steel
Magnet Type	Ferrite
Recommended Amplifier Power	400 – 800 watts RMS
Weight	22 lbs (approx.)
Warranty	1 year

Frequently Asked Questions - Reference R3.15 Soundstream

What is the impedance of the Soundstream Reference R3.15 subwoofer?

The Reference R3.15 features a dual 4-ohm voice coil, allowing wiring options for 2 ohms or 8 ohms total impedance.

How much power does the R3.15 handle?

It handles 800 watts RMS and 1600 watts peak power. Use an amplifier delivering 400-800 watts RMS for best results.

What enclosure volume is recommended for the R3.15?

For a sealed enclosure, 1.5-2.0 cubic feet. For a ported enclosure, 2.5-3.5 cubic feet tuned to 32-35 Hz.

What is the mounting depth of the R3.15?

The mounting depth is 7.5 inches. Ensure your enclosure has adequate clearance.

Can I use the R3.15 in a free-air (infinite baffle) setup?

It is not recommended. The subwoofer is designed for sealed or ported enclosures to achieve optimal performance.

How do I break in the subwoofer?

Play music at moderate volume (<50% power) for 20-30 hours to loosen the suspension. Avoid full power until break-in is complete.

What size enclosure cutout do I need?

The mounting hole diameter is 14 inches. Cut a hole approximately 14-1/16 inches for a snug fit.

Is the R3.15 suitable for SPL competitions?

Yes, with adequate power and a well-designed ported enclosure, it can produce high output for SPL events.

Does the subwoofer come with a grille?

No, a grille is not included. You can purchase an aftermarket grille if needed.

What is the frequency response of the R3.15?

It has a frequency response of 20 Hz to 200 Hz, covering deep bass and mid-bass comfortably.

USER MANUAL Reference R3.15 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