StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › DS18
DS18
DS18 SMD-2800.5 5 Ch 1800w 1 Ohm Stable Class A/B & D Amplifier

DS18 SMD-2800.5 5 Ch 1800w 1 Ohm Stable Class A/B & D Amplifier

Best price now

$849.95at Big Jeff Online IncChecked Nov 13

Prices are checked against each store and labelled with when.

Visit Big Jeff Online Inc

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $849.95 at Big Jeff Online Inc on Nov 13.

Our take on the DS18 SMD-2800.5 5 Ch 1800w 1 Ohm Stable Class A/B & D Amplifier

The DS18 SMD-2800.5 is a five-channel car amplifier that pairs a Class AB section for four full-range speakers with a Class D subwoofer channel rated at 1800W RMS at 1 ohm. It carries a full tuning set: high-pass, low-pass and full-range modes, a 50Hz-2KHz crossover and 0-9dB bass boost. Build details include 0 AWG power inputs, Tiffany RCA connectors, a cooling fan, a protection suite and RGB lighting with an IR remote. It suits owners running an active front stage plus a big sub from one chassis, but the 1-ohm sub rating and current draw demand a strong electrical system.

Best forOwners running four speakers plus a subwoofer from one ampCompetition and SPL builds with a 1-ohm subInstallers who want onboard crossover and bass tuningDrivers who want RGB lighting tied to the interior
Pros
  • Four full-range channels plus a dedicated subwoofer channel in one unit
  • Sub channel rated 1800W RMS at 1 ohm
  • Adjustable crossover from 50Hz to 2KHz with 0-9dB bass boost
  • 0 AWG power inputs and Tiffany RCA connectors for serious wiring
  • Thermal, overload, voltage and short-circuit protection with a cooling fan
  • Remote level knob with clip indicator for tuning from the driver's seat
Cons
  • Class AB full-range section runs hot and draws more current than Class D
  • 1-ohm sub rating needs a stout charging system and wiring
  • Large five-channel chassis takes real trunk space
  • RGB lighting and IR remote add features some buyers won't use

DS18 SMD-2800.5 5 Ch 1800w 1 Ohm Stable Class A/B & D Amplifier prices at every store

  • Big Jeff Online IncNew

    In stockReturn policy

    $849.95Checked Nov 13
    Visit Big Jeff Online Inc

About the DS18 SMD-2800.5 5 Ch 1800w 1 Ohm Stable Class A/B & D Amplifier

The DS18 SMD-2800.5 is a 5-channel car amplifier. It combines four analog Class AB full-range channels with a digital subwoofer channel. The subwoofer channel delivers 1800W at 1 ohm, and the full-range channels deliver 250W x 4 at 2 ohms.

It has HPF, LPF and Full crossover modes, a 50Hz-2KHz crossover range and a 0-9dB bass boost. Protection covers thermal, overload, DC output, short circuit, input voltage and clipping faults, and a built-in fan cools the unit. The board is a heavy-duty Korean design, with 0 AWG power input terminals and Tiffany RCA connectors.

A front acrylic window shows digital RGB lighting. An IR remote controls the LED colors and patterns. A remote level knob with a clip indicator in a metal case is included.

Channels
5 (4 full-range + 1 subwoofer)
Amplifier class
Analog AB (full-range) + Digital (sub)
Power at 4 ohms
180W x 4 + 700W (sub)
Power at 2 ohms
250W x 4 + 1100W (sub)
Power at 1 ohm
1800W (sub only)
Bridged power
500W x 2 at 4 ohms (CH1-CH4)
Minimum impedance
2 ohms stereo / 4 ohms bridged + 1 ohm (sub)
Frequency response
10Hz-24KHz (CH1-CH4); 35Hz-250Hz (sub)
Signal-to-noise
>98dB
Efficiency
>60% (4CH); >82% (sub)
Damping factor
250
Input impedance
22K ohm
Channel separation
>50dB
THD
0.10%
Input range
Low-level, 200mV-6V
Crossover modes
HPF / Full / LPF
Crossover range
50Hz-2KHz
Bass boost
0-9dB at 30Hz-60Hz
Phase selector
0-180
Protection
Thermal, overload, DC output, short circuit, voltage input, clipping
Indicators
Power / Protection / Clip LEDs
Cooling
Built-in fan
Power terminals
0 AWG
Recommended fuse
300A (not included)
Controls
Metal adjustment knobs with click position
Lighting
Front acrylic window with digital RGB lighting; IR remote for patterns and colors
Dimensions
18.2" L x 9.15" W x 3" H (462 x 232 x 76mm)
Heatsink length
16.5" (420mm)
Weight
13 lbs (5.89 kg) gross
In the box
Amplifier, VM-1 voltmeter, remote level knob with clip indicator (metal case), IR remote control

Questions and answers

How much power does each channel deliver?
The four full-range channels are rated 250W each, and the subwoofer channel is rated 1800W RMS at 1 ohm. The full-range section is Class AB; the sub channel is Class D.
What subwoofer impedance does it need?
The sub channel is rated down to 1 ohm, so a 1-ohm or 2-ohm sub setup fits. Check your sub's final impedance before wiring.
Does it have a crossover for the speakers and the sub?
Yes. Each section has high-pass, low-pass and full-range modes with a 50Hz-2KHz crossover, plus 0-9dB bass boost.
What comes in the box?
The amplifier with its VM-1 voltmeter, a remote level knob with clip indicator in a metal case, and an IR remote for the LED lighting.
Will it fit a stock electrical system?
The 1800W sub rating and Class AB channels pull heavy current. Plan on 0 AWG power wiring and an upgraded battery or alternator for full output.
Can I control the bass from the front seat?
Yes. The included remote level knob with clip indicator lets you adjust sub level and watch for clipping without leaving the driver's seat.
Where is the DS18 SMD-2800.5 5 Ch 1800w 1 Ohm Stable Class A/B & D Amplifier cheapest?
At Big Jeff Online Inc, for $849.95, as of our latest check.

More from DS18

  • D
    DS18 DS-SXE-2500.1D/BK Class D 1-Channel Monoblock Amplifier
    DS18 DS-SXE-2500.1D/BK Class D 1-Channel Monoblock Amplifier
  • D
    DS18 ION600.1D Compact Full-Range Class D 1-Channel Amplifier 600 Watts RMS
    DS18 ION600.1D Compact Full-Range Class D 1-Channel Amplifier 600 Watts RMS
  • D
    DS18 CANDY-X1B Compact Class D 1-Channel Monoblock Amplifier 1800 Watts
    DS18 CANDY-X1B Compact Class D 1-Channel Monoblock Amplifier 1800 Watts
  • D
    DS18 GEN-X1200.1 Class AB 1-Channel Monoblock Amplifier 1200 Watts
    DS18 GEN-X1200.1 Class AB 1-Channel Monoblock Amplifier 1200 Watts
  • D
    DS18 CANDY-XXL1B Compact Class D 1-Channel Monoblock Amplifier 1000W RMS
DS18 CANDY-XXL1B Compact Class D 1-Channel Monoblock Amplifier 1000W RMS
  • D
    DS18 Car Audio 1 Channel Amplifier 3000W Digital Monoblock Class D Candy-XXL1B
    DS18 Car Audio 1 Channel Amplifier 3000W Digital Monoblock Class D Candy-XXL1B
  • D
    DS18 G3600.4D GEN-X 4-Channel Full-Range Class D Amp
    DS18 G3600.4D GEN-X 4-Channel Full-Range Class D Amp
  • D
    DS18 G5400.4D
    DS18 G5400.4D
  • All DS18 deals and products →

    More car amplifiers

    • C
      CT-300.4D 1800 Watts RMS 4-Channel Car Amplifier
      CT-300.4D 1800 Watts RMS 4-Channel Car Amplifier
    • S
      Sundown Audio SAEV4 900.5 5-CHANNEL AMPLIFIER
      Sundown Audio SAEV4 900.5 5-CHANNEL AMPLIFIER
    • J
      JL Audio XDM400/4 CAR AUDIO XDV2 AMPLIFIERS
      JL Audio XDM400/4 CAR AUDIO XDV2 AMPLIFIERS
    • E
      EPICFIVE 5-Channel Amplifier
      EPICFIVE 5-Channel Amplifier
    • Q
      QS400.4 4 Channel Full Range Amplifier 2 Ohm
      QS400.4 4 Channel Full Range Amplifier 2 Ohm
    • D
      DC Audio 90.4 4-Channel Amplifier
      DC Audio 90.4 4-Channel Amplifier
    • C
      CBA3500.4 3500 Watt MAX Class A/B Car Amplifier 4 Channel
      CBA3500.4 3500 Watt MAX Class A/B Car Amplifier 4 Channel
    • P
      Pioneer GM-A6704
      Pioneer GM-A6704