Product Overview

Description

SPECS

SKU
SMD-8500.1D
RMS Power @ 4 ohm (14.4v)
3300W
RMS Power @ 2 ohm (14.4v)
5700W
RMS Power @ 1 ohm (14.4v)
8500W


Audio

Frequency Response
15Hz-250Hz
Signal to Noise Ratio
>98dB
Efficiency @ 4ohm
>86%
Damping Factor
300
Input Impedance
22K ohm
Total Harmonic Distortion (THD)
<0.02%
Low Level Input Range
200mV-6V
High Level Input
NO
Selectable X-Over
Fixed LPF
X-Over Filter Range
35Hz-250Hz
Bass Boost Range
0~9dB
Bass Boost Frequency
30Hz-60Hz
Infrasonic Filter
10Hz-30Hz
Phase Selector
0~180
Operational Voltage
8.5v-16.9v


Features

Amplifier Class
Digital
Amplifier Type
Subwoofer
Number of Channels
1
Minimum Impedance
1 ohm
Led Indicator
Power / Protection / Clip
Power Input Terminal Size
0 AWG
Recommended Fuse Size (Not Included)
740A
Cooling Fan
Yes
Thermal Protection
Yes
Over-Load Protection
Yes
DC Output Protection
Yes
Short Circuit Output Protection
Yes
Voltage Input Protection
Yes
Clipping Protection
Yes
Body Color / Finish
Black
Metal Adjustment Knobs with Click Position
Yes
Professional Tiffany RCA Connectors
Yes
Remote Level Knob with Clip indicator
Yes (Metal Case)
Linkable (Strap mode) Amplifier
Yes
Reliable Heavy Duty Korean Board Design
Yes
Very High Efficiency Digital Circuit Design
Yes
Exclusive SMD design with VM-1 Voltmeter
Yes
Front Acrylic Window and Digital RGB Lighting
Yes
IR Remote Control for LED patterns and colors
Yes


Measurement

Overall Length
23.3" / 562mm
Overall Width
9.15" / 232mm
Overall Height
3" / 76mm
Heatsink Length
21.6" / 550mm

Free shipping on orders $100+

FAQs

Please read our FAQs page to find out more.

RMS vs. MAX power — which number do I actually care about?

RMS is what your gear handles continuously; MAX is the short burst it can survive without complaint. Match your amplifier's RMS output to your speakers' RMS rating — sizing off the MAX number is how magic smoke gets released.

What does the IP65 rating on DS18 marine gear actually mean?

It's dust-tight and rated against low-pressure water jets from any direction — built for spray, rain, and the occasional wave over the bow, not for full submersion. If something's going somewhere it could sit underwater, that's a different conversation entirely.

How do I match an amplifier to my speakers without guessing?

Add up the RMS rating of everything the amp will power, and pick an amp whose RMS output (at your speakers' impedance — usually 4-ohm) lands close to that total. Undersized is thin sound; wildly oversized is a fast way to blow a voice coil.

Can I mix marine-grade gear into a standard car audio setup, or the reverse?

You can run marine-grade gear in a car — it's just over-built for that environment, no downside besides cost. Running non-weatherproof car audio gear in an open UTV or boat is the direction that causes problems.

What gauge wiring kit do I need?

It scales with your amp's power draw and the length of the run — DS18's OFC kits come in 4-gauge and 8-gauge for a reason. Undersized wiring on a high-draw system is a voltage-drop and heat problem waiting to happen; when in doubt, size up.

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