Recoil PW15D4 Review: 800 W RMS 15-Inch Subwoofer, Wiring and Amplifier Matching
The Recoil PW15D4 is a 15-inch dual 4-ohm subwoofer from Recoil's Echo Pro range, rated at 800 W RMS and 1,600 W peak, with a 3 in (76.5 mm) voice coil and an IMPP cone. Its Indian MRP is ₹35,000, the highest among the six Echo Pro PW subwoofers we review. It suits a buyer with a roomy boot and an amplifier that can deliver around 800 W RMS. You can see it on our Recoil PW15D4 product page.
Quick summary
The 1,600 W in the product name is the peak figure. The continuous rating to size an amplifier by is 800 W RMS.
The two 4-ohm coils wire to 2 ohm in parallel or 8 ohm in series, so an amplifier rated near 800 W RMS at 2 ohm is the natural match.
The Recoil pages we read give no recommended box volume, but Recoil's US page publishes a 201 mm mounting depth, a 351 mm cut-out and a Vas of 134 L.
We found no owner reviews or independent tests when we checked in October 2026, so every performance figure here comes from Recoil or our listing.
Recoil PW15D4 specifications
Specification | Recoil PW15D4 |
|---|---|
Type | 15-inch dual 4-ohm subwoofer, Echo Pro series |
RMS power handling | 800 W |
Peak power handling (not RMS) | 1,600 W |
Impedance | Dual 4 Ω (2 Ω in parallel, 8 Ω in series) |
Voice coil | 3 in (76.5 mm) |
Cone and magnet | IMPP cone, ferrite magnet (168 oz) |
Sensitivity | 87.8 dB |
Frequency response | 27 Hz – 250 Hz |
Xmax | 14 mm |
Fs / Qts / Vas | 25.5 Hz / 0.53 / 134 L |
Mounting depth | 201 mm (7.90 in) |
Cut-out diameter | 351 mm (13.80 in) |
Overall diameter | 391 mm (15.40 in) |
Warranty | Per Recoil's published terms, written for the US; India terms not stated |
India MRP | ₹35,000 |
Power, impedance, voice coil, cone, magnet, sensitivity and frequency response agree between our listing and Recoil's own PW15D4 page. Xmax, the Thiele/Small figures, the dimensions and the wiring options appear only on Recoil Audio USA's page. That page lists the voice-coil material as ASV in its table and as copper in its bullets, so we leave the material out.
800 W RMS or 1,600 W: the number that matters
Recoil's page labels 800 W as RMS and 1,600 W as peak, and its US page calls the larger figure MAX. Our listing gives the same pair. The 1600W at the end of the product name is the peak figure, so it should not be used to choose an amplifier. RMS is the continuous rating; peak only describes short bursts.
There is a second reason to care. Recoil's published warranty terms, which refer to US state law, say that blown or burned voice coils are not manufacturing defects. Confirm the India terms with Recoil or its distributor, but assume that heat damage from over-driving is yours to prevent. Set the gain with a meter or test tone and use a subsonic filter if the amplifier has one.
Wiring and amplifier matching
With two 4-ohm coils, parallel wiring gives a 2-ohm load and series wiring gives 8 ohm; Recoil Audio USA lists both options. Most mono amplifiers are rated at 1, 2 and 4 ohm rather than 8, so 2 ohm is the usual choice. Look for a rating close to 800 W RMS at 2 ohm.
Two examples reviewed on this blog: the Deaf Bonce Atom 1300.1 PRO lists 780 W RMS at 2 ohm (₹27,990 MRP), slightly under the sub's rating, and the DS18 G3600.1D lists 900 W RMS at 2 ohm (₹39,990 MRP), which is 100 W above it, so with the DS18 the gain must be set conservatively. Our guide to the need for an amplifier in car sound systems is a good starting point.
Box volume and boot space
None of the Recoil pages we read gives a recommended enclosure volume or type for the PW15D4. They do give the figures a box builder models from: Fs 25.5 Hz, Qts 0.53, Vas 134 L, a 201 mm mounting depth and a 391 mm overall diameter. Add the baffle, bracing and the air space behind the cone, and the finished box is large by any measure. In a small boot it can take most of the load area, so measure before choosing a 15-inch.
VA3 Car Studio builds custom subwoofer enclosures, so a sealed or ported box can be made to suit your boot.
What owners and reviewers say about the Recoil PW15D4
When we checked in October 2026 we found no owner reviews or independent tests of the PW15D4. Recoil's own product page shows zero reviews, and the Recoil Audio USA page shows none either. Several forum and retailer search pages we tried returned errors or blocked automated access, so we cannot rule out owner write-ups elsewhere.
That leaves Recoil's own numbers, which are promotional until someone measures them. If you already run a PW15D4, leave a comment with your box, amplifier and what you hear.
How the PW15D4 compares with the PW12D4 and PW10D4
The Recoil PW12D4 (₹20,000 MRP) is rated 700 W RMS, only 100 W below the PW15D4. On the US pages the PW15D4 has a cone area of 764.5 cm² against 471.4 cm², a sensitivity of 87.8 dB against 85.3 dB and an Fs of 25.5 Hz against 27.4 Hz, while both list an Xmax of 14 mm. The 15 also needs a 351 mm cut-out instead of 283 mm and a 201 mm mounting depth instead of 163.5 mm.
The Recoil PW10D4 (₹18,000 MRP, 600 W RMS) is easier on boot space: its mounting depth is 148 mm and its cut-out 233 mm.
Who should buy the PW15D4, and who shouldn't
Buy it if you have a large boot or load area, can supply an amplifier rated near 800 W RMS at 2 ohm, and want one big sub rather than several small ones.
Look elsewhere if your boot is small, your amplifier is far below 800 W RMS, or you want a compact box. The PW12D4 or PW10D4 is easier to place and to power.
Installation notes for Indian cars
An amplifier near 800 W RMS draws serious current, and long idle periods with the AC running are normal in Indian traffic. Many amplifier ratings are quoted at 14.4 V, and a car at idle can sit lower, so expect less than the figures on paper. Follow the amplifier manual's wire gauge and fuse, and leave the amplifier room to breathe; a closed boot gets very hot in summer.
Fix the box down, because speed breakers and rough roads will move a heavy enclosure that is only resting in the boot. Damping the boot floor and rear panel helps keep rattles from masking the bass; see our sound damping guide for how it is applied. VA3 Car Studio in Ghaziabad offers professional installation.
Price and where to buy
The PW15D4 has an India MRP of ₹35,000. VA3 Car Studio often sells below MRP, so check today's price on the PW15D4 product page. Recoil's warranty terms refer to US law, so confirm the India terms with Recoil or its distributor before you order.
The bottom line
The PW15D4 is the biggest of the six Echo Pro PW subwoofers we review: a 15-inch cone, 800 W RMS and a long list of numbers on Recoil's US page. It asks for a large box, a strong amplifier and a healthy electrical system. With all three it is a logical single-sub choice; without them, a smaller Echo Pro model will be easier to live with. We found no owner feedback, so the decision rests on the specifications.
Recoil PW15D4 FAQ
Is the Recoil PW15D4 800 W or 1,600 W?
It is rated 800 W RMS. The 1,600 W in the product name is the peak rating, which Recoil's US page labels MAX. Size the amplifier by the RMS figure and set the gain with a meter or test tone rather than by ear.
What amplifier suits the PW15D4?
Look for a mono amplifier rated close to 800 W RMS at the load you wire to, normally 2 ohm. The two examples above list 780 W and 900 W RMS at 2 ohm. An amplifier far above that needs a very conservative gain setting.
How big a box does the PW15D4 need?
Recoil publishes no recommended volume. Its US page lists Fs 25.5 Hz, Qts 0.53, Vas 134 L and a 201 mm mounting depth, which a box builder can work from. VA3 Car Studio builds custom subwoofer enclosures to suit your boot.
Will the Recoil PW15D4 fit a small car?
That depends on the boot rather than the model name. The cut-out is 351 mm, the overall diameter 391 mm and the mounting depth 201 mm, before the box walls are added. Measure your boot, and the box you plan to build, before ordering.
Comments