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Performance Optimized · Datasheet

Dayton Audio Reference RSS265HF Quad Box: Sealed 10" Wedge Wide Enclosure Quad 10" Sealed enclosure

Net volume
1.483 cu ft per driver, 5.93 cu ft total, after the divider and an estimated 0.062 cu ft displacement per driver
Max mounting depth
5.37 in required; 11.14 in clearance above the motor against the raked rear panel
External dimensions
44 in W × 17 in at the seat face H × 23.00 in at the base D
Front baffle
1.5 in double baffle, frames face mounted
Buy at Audio IntensityFactory-direct, ships from Tullahoma
Dayton Audio Reference RSS265HFBuy at Audio Intensity
  • Best For: Quad Dayton Audio Reference RSS265HF SUV Cargo-Floor Builds
  • Net Volume: 1.483 cu ft per Driver (5.93 cu ft Net Total)
  • Driver Match: Four Dayton Audio Reference RSS265HF (Single 4 Ohm / Single 8 Ohm), matched
  • Construction: 2 Chambers | 44" Wide Wedge | V-Groove/Dado | Double 1.5" Baffle | 2 Terminal Cups

Spec of record

Technical specifications

SpecificationValue
SeriesProline X Performance Optimized Wedge Wide
Compatible DriverDayton Audio Reference RSS265HF, quantity 4, matched. Direct fit
ConfigurationQuad 10 inch sealed wedge, 2 chambers, 2 drivers per chamber
Mounting PositionSUV cargo floor, raked face against the rear seat back
Firing DirectionRearward toward the liftgate. Not a down fire design
External Width44 in
External Height17 in at the seat face
External Depth23.00 in at the base, tapering to 16.81 in at the top
Internal Volume, Gross6.29 cu ft total
Internal Volume, Net Acoustic1.483 cu ft per driver, 5.93 cu ft total, after the divider and an estimated 0.062 cu ft displacement per driver
Driver Mounting Depth5.37 in required; 11.14 in clearance above the motor against the raked rear panel
Alignment Per DriverRSS265HF-4 Qtc 0.680, fc 38.7 Hz, F3 40.3 Hz; RSS265HF-8 Qtc 0.735, fc 37.4 Hz, F3 36.0 Hz anechoic
Woofer Openings4 at 9.252 in
Woofer LayoutOne row across the face
Frame Outer Diameter10.472 in
Fs / Qts / Qes / Qms25.6 Hz / 0.450 / 0.530 / 3.060
Vas / Sd / Xmax54.0 L / 356 cm2 / 12 mm
Driver Power Handling350 W RMS per driver, 1400 W RMS for the set of 4 (thermal rating)
Recommended Amplifier130-190 W RMS per driver, 520-760 W RMS for the full set
Parameter SourceDayton Audio published specifications
MaterialLangboard Elite MDF
ConstructionCNC cut, V-groove and dado joinery
Panel Thickness0.75 in
Front Baffle1.5 in double baffle, frames face mounted
Internal BracingOne full-height 3/4 in divider
Driver MountingThreaded inserts, stainless machine screws included
Terminal CupsTwo Proline X ABS and carbon fiber composite, side mounted, one per chamber, pre wired 12 gauge OFC
Acrylic InsertGloss black acrylic baffle insert standard
DampingLight polyfill wall lining in every chamber, does not alter acoustic volume
CarpetPlush black
Shipping Weight98 lb
Warranty1 Year Limited
Built InTullahoma, Tennessee

Modelled response

Performance in this enclosure

Net airspace
1.483
cu ft per driver
System Qtc
0.68–0.74
sealed
Half power
36.0–40.3
Hz · F3
Xmax at
126
W RMS per driver · no filter
With 25 Hz subsonic
198
W RMS per driver · +57%
Amplifier, per driver
130–190
W RMS recommended
This enclosure holds 1.483 cu ft net per driver. In it the Dayton Audio RSS265HF-4 runs a system Qtc of 0.68–0.74 with half power at 36.0–40.3 Hz, and the cone reaches its 12.3 mm travel limit at 126 W per driver, below the driver’s 350 W thermal rating, so travel is what stops you here, not heat. Run a subsonic filter at 25 Hz and that becomes 198 W per driver — +71 W, or 57 percent more power for the same 12.3 mm of travel.

00Sizing the amplifier

Every wattage on this panel is per driver. This cabinet holds four, so the amplifier feeds all four at once.

Per driver 130–190 W RMS  ×  4 drivers  =  full set 520–760 W RMS
Look for a mono amplifier rated 520–760 W RMS at the load your coil version wires to. Travel sets the top here, not heat: past 198 W per driver the cone runs beyond Xmax even with the subsonic set, under the driver’s 350 W thermal rating. The top of the range needs the 25 Hz subsonic filter set; without it, keep each driver under 126 W, where the cone reaches Xmax unfiltered. Below the bottom of the range it will play, just with less headroom; above the top you are buying power the drivers cannot use.

01Is it a sealed driver?

Efficiency bandwidth product places the motor before anything else is decided.

EBP = Fs ÷ Qes = 42.2–48.3
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 Single 4 Ohm 48.3 Single 8 Ohm 42.2
Single 4 Ohm · EBP 48.3Single 8 Ohm · EBP 42.2
EBP under 50 means a motor that wants a sealed load. The RSS265HF-4 sits at 42.2–48.3, inside that band, which is why this is a sealed build rather than a ported one.

02What the box does to it

1.483 cu ft against a 54.0 L Vas.

α = Vas ÷ Vb = 1.29  ·  Fc = Fs√(α+1) = 37–39 Hz  ·  Qtc = 0.68–0.74
20 30 50 70 100 150 200 +6 +0 -6 -12 -18 -24 FREQUENCY · Hz LEVEL · dB −3 dB
Single 4 Ohm · Qtc 0.68, Fc 39 Hz, F3 40.3 HzSingle 8 Ohm · Qtc 0.74, Fc 37 Hz, F3 36.0 Hz
The box lifts resonance from 24.9–25.6 Hz free-air to 37–39 Hz and half power lands at 36.0–40.3 Hz, anechoic, before any cabin gain. Figures are Dayton Audio’s published parameters; Qes and Qms reproduce the printed Qts. This cabinet holds four drivers in two sealed chambers of 2.966 cubic feet, two drivers to a chamber, so each driver works into 1.483 cubic feet and that is the volume plotted here.

03The watts that reach Xmax (in this enclosure)

Travel scales with the square root of power, so there is one wattage that puts the cone exactly on 12.3 mm — and a bigger one once a subsonic filter stops it wasting travel below the passband.

PXmax = 126–127 W per driver unfiltered  →  198–202 W with a 25 Hz subsonic
20 30 50 70 100 150 200 0 4 8 12 FREQUENCY · Hz CONE TRAVEL · mm PAST LINEAR TRAVEL · Xmax 12.3 mm 126 W reaches Xmax here
Single 4 Ohm · 126 W, no filterSingle 8 Ohm · 127 W, no filterSingle 4 Ohm · 202 W with subsonic at 25 Hz, 24 dB/octSingle 8 Ohm · 198 W with subsonic at 25 Hz, 24 dB/octXmax 12.3 mm one-way
Every trace touches the limit and no further, because each is drawn at the exact power that puts that coil on 12.3 mm. Unfiltered that is 126 W per driver, reached first at 20 Hz. It sits under the 350 W the driver can take thermally, so the enclosure sets the ceiling, not the voice coil. The dashed traces are the same driver behind a subsonic filter at 25 Hz, 24 dB/oct: stopping the cone wasting travel below the passband lets it take 198 W per driver before hitting the same 12.3 mm. That is 57 percent more amplifier for the price of one filter setting.
ParamValueUnitNote
Fs25.60 / 24.90Hzfree-air resonance
Qts0.450 / 0.490Single 4 Ohm / Single 8 Ohm
Vas54.00 / 52.50Lequivalent compliance
Sd356.3cm²effective piston area
Xmax12.3mmone-way linear travel
Pe350Wcontinuous RMS
SPL84.2dB1 W / 1 m, derived from T/S

Driver parameters as published by Dayton Audio RSS265HF-4 / RSS265HF-8 published specifications. Curves computed against this enclosure’s actual net airspace.

From the shop floor

Installer's take

Start with the size. 1.483 cubic feet per driver puts the Reference RSS265HF at Qtc 0.680, resonance 38.7 Hz, half power 40.3 Hz anechoic. Maximally flat on these figures would need 1.30 cubic feet per driver. The wide platform stops at 23 inches deep, so this box lands a little above flat: a small lift near resonance and firm midbass. One box serves every coil version: the Single 4 Ohm at Qtc 0.680, the Single 8 Ohm at Qtc 0.735.

Measure the base depth, not the top. This cabinet is 23.00 in deep where it meets the floor, 16.81 at the top, 44 wide and 17 tall. In an SUV the 44 has to clear between the rear wheel wells at floor height, the base depth is measured from the seat back with the seat upright and latched, and the 17 has to clear the cargo cover.

The two terminal cups are on the side panels, one per chamber, so they sit close to the wheel wells. Land the speaker wire on both before the box slides into its final spot, with slack to pull it forward again.

Two drivers share each chamber, so they have to match: same model, same coil, wired in phase. One driver reversed in a shared chamber pushes against its partner and the pair cancels instead of adding. Check polarity at each cup with a battery tap before the box goes in. The frames mount on the face rather than in a recess.

Impedance. RSS265HF-4: wire for 4 ohms (each pair in series, both cups in parallel), the load most monoblocks are built to deliver full power into; 1 ohm is the other clean option (each pair in parallel, both cups in parallel). RSS265HF-8: wire for 2 ohms (each pair in parallel, both cups in parallel), the load most monoblocks are built to deliver full power into; 8 ohms is the other clean option (each pair in series, both cups in parallel). Work the load out before you buy the amplifier, not after.

Power. Size the amplifier for the set, not one driver: 130 to 190 W RMS per driver is 520 to 760 W RMS across all 4. On this driver travel sets the top, not heat: Xmax arrives at 198 W per driver with a 25 Hz subsonic, under the 350 W rating. Set the 25 Hz subsonic to use the top of that range; without it keep each driver under 126 W.

Dayton Audio's Qes and Qms reproduce the printed Qts within 3 percent, so the alignment rests on a self-consistent set. Dayton Audio do not publish driver displacement; we deduct an estimated 0.062 per driver, so true net can sit a few hundredths either way.

Polyfill is in as a wall lining in every chamber. Do not add more: it makes the box act larger and walks Qtc off 0.68.

Before you order

Questions

Does this fit the Dayton Audio Reference RSS265HF, and its coil versions?

Yes. Each opening is cut to 9.252 in for the 10.472 in frame, and the 5.37 in deep motor clears the raked rear panel with 11.14 in to spare. Both coil versions share the frame, cutout and mounting depth; the alignment table lists each.

Run four matched drivers, same model and same coil, so every chamber sees the alignment on this page.

Why 1.483 cubic feet per driver, and what alignment does it target?

On Dayton Audio's published Fs 25.6 Hz, Qts 0.450 and Vas 54.0 liters, 1.483 cubic feet per driver gives Qtc 0.680, system resonance 38.7 Hz and half power 40.3 Hz.

Maximally flat on these figures would need 1.30 cubic feet per driver. The wide platform stops at 23 inches deep, so this box lands a little above flat: a small lift near resonance and firm midbass.

What amplifier power should I run, and how should I wire it?

Dayton Audio rates the Reference RSS265HF at 350 watts RMS per driver. Recommended amplifier: 130 to 190 W RMS per driver, 520 to 760 W RMS for the full set of 4. Travel, not heat, sets the top: the cone reaches Xmax at 198 W per driver with a 25 Hz subsonic set, under the 350 W rating. The top of that range needs the 25 Hz subsonic; without it keep each driver under 126 W.

Each RSS265HF-4 has a single 4 ohm voice coil. With the two drivers in each chamber in parallel and the two cups in parallel, the four present 1 ohm; with each pair in series and the cups in parallel, 4 ohms. Use the lower load only on an amplifier rated stable there. Each RSS265HF-8 has a single 8 ohm voice coil. With the two drivers in each chamber in parallel and the two cups in parallel, the four present 2 ohms; with each pair in series and the cups in parallel, 8 ohms. Use the lower load only on an amplifier rated stable there.

Will it fit my SUV?

It is 44 inches wide, 17 tall and 23.00 deep at the base, tapering to 16.81 at the top. Measure between the rear wheel wells, the floor depth with the seat upright, and the height under your cargo cover.

The raked face goes against the seat back and the woofers fire toward the liftgate.

Why two drivers per chamber instead of four chambers?

Four chambers would need three dividers, and on a 44 inch face that space is needed for the woofers. Two matched drivers in one sealed chamber move together and see the same pressure, so each behaves as if it had half the chamber to itself: 1.483 cubic feet per driver here.

It also gives two terminal cups, one per pair, which keeps the wiring to the amplifier simple.

What is the expected low-frequency extension?

Anechoic F3 is 40.3 Hz per driver with system resonance at 38.7 Hz.

Those figures exclude cabin gain. An SUV cabin adds real output below about 50 Hz, so in-vehicle response runs deeper than the numbers above.

Do I need to add polyfill or damping?

No. Polyfill is already installed as a light wall lining in every chamber, and the quantity is chosen so it does not change the acoustic volume.

Do not add more. Packing a sealed box makes it behave as though it were larger, which moves the alignment away from 1.483 cubic feet per driver.

Are the drivers included?

No. This is an enclosure only. You receive the cabinet finished in plush black carpet with the gloss black acrylic baffle insert, two side-mounted pre-wired terminal cups, the polyfill lining in place, threaded inserts and stainless machine screws.

Bring four matched Dayton Audio Reference RSS265HF drivers. The cabinet is cut direct fit to them, not a general purpose 10 inch box.

Same series, same size

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