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Description

Sundown Audio SML-10 D4

The Sundown Audio SML-10 D4 is a 10″ shallow-mount subwoofer designed to deliver strong, controlled bass in compact enclosures where traditional deep drivers won’t fit. The dual 4-ohm (D4) voice coil configuration offers flexible wiring options (2 Ω or 8 Ω) to match a variety of amplifiers, making it easy to tune your system for maximum performance. Built with a rugged motor assembly featuring a vented magnetic gap and pole piece for improved cooling, a high-temperature copper voice coil, and stitched high-strength tinsel leads, the SML-10 D4 combines shallow installation depth with impressive excursion and reliability — perfect for stealth installations under seats or in tight spaces without sacrificing low-end output.


Specifications

SML-10 
T/S Specs
RMS Power (D4)
600
RMS Power (D2)
600
Peak Power (D2)
1200
Peak Power (D4)
1200
RE D2 (Ohms)
3.650
RE D4 (Ohms)
6.850
FS D2 (Hz)
35.210
FS D4 (Hz)
36.116
VAS D2 (L)
23.679
VAS D4 (L)
18.828
Qes D2
0.931
Qes D4
0.469
Qms D2
2.703
Qms D4
2.766
Qts D2
0.341
Qts D4
0.469
Le D4 (mH)
3.7716
BL D2 (NA)
17.431
BL D4 (NA)
21.022
Mms D2 (Grams)
145.749
Mms D4 (Grams)
146.986
Cms D2 (uM/N)
139.003
Cms D4 (uM/N)
145.749
Sens D2 (dB @ 1w/1m)
86.1
Sens D4 (dB @ 1w/1m)
85.8
Xmax D2
14mm
Xmax D4
14mm
Subwoofer Measurements
Product Sku
SML-10 D4
Displacement (Inches)
.04cu ft
Depth (Inches)
3.78
Motor Diameter (Inches)
6.14
Ported Enclosure Specs
Ported Enclosure Size
1.0-1.25 cu ft
Recommended Port Area
26-30 sq in
Recommended Port Tuning
35hz
Sealed Enclosure Specs
Sealed Enclosure Size
0.5-0.75 cu ft
4th Order Enclosure Specs
4th Order Sealed Side
.4cu ft
4th Order Ported Side
1.2cu ft
4th Order Port Area
24sq in
4th Order Port Length
6″

 


Specifications

RE (Ohms) 3.650 6.850
FS (Hz) 35.210 36.116
VAS (L) 23.679 24.828
Qes 0.931 0.469
Qms 2.703 2.766
Qts 0.341 0.401
BL (NA) 17.431 21.022
Mms (Grams) 146.986 133.242
Cms (uM/N) 139.003 145.749
Sens (dB @ 1w/1m) 86.1dB 85.8dB
Xmax 14mm 14mm
T/S SPECS SML 10″ D2 SML 10″ D4

 


Enclosure Specifications
SML 10″ SML 12″
Sealed Enclosure 0.5-0.75 ft^3 0.75-1.0 ft^3
Ported Enclosure 1.0-1.25 ft^3 1.25-1.75 ft^3
Recommended Tuning 35hz 35hz
Recommended Port Area  15 sq in  15 sq in
Mounting Depth 3.78” 4.45”

 


About The Product

The SML series is a revolutionary line of subwoofers offered by Sundown Audio. An inch shallower than our SLD series, it delivers nearly the excursion, making it an ideal choice for customers seeking an extremely shallow driver with deep bass. Designed to fit under or behind your seat, the SML series performs exceptionally well in small enclosures.

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Questions and Answers

Q1: What is the power handling of the SML-10 D4?

A1: The SML-10 D4 typically handles around ~400 W RMS continuous with higher peak power capability when used in properly configured sealed or small ported boxes.

Q2: What does “D4” stand for in this model?

A2: “D4” indicates the subwoofer has dual 4-ohm voice coils, which gives you wiring flexibility to match amplifier impedance (e.g., 2 Ω or 8 Ω).

Q3: Is the SML-10 D4 suitable for small installations?

A3: Yes  its shallow-mount design means it fits in tight spaces (like under seats, behind panels, or compact stealth enclosures) where standard deep subs cannot.

Q4: What design features improve durability and cooling?

A4: It includes a vented magnetic gap and pole piece for heat dissipation, a high-temp copper voice coil, and stitched tinsel leads for strength and reliability under high power.

Q5: What type of enclosure is recommended?

A5: The SML-10 D4 performs best in a sealed enclosure sized appropriately for a shallow driver (optimized for tight, punchy bass). Small ported boxes can work with careful tuning.


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