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Deal.ai › DS18
DS18
DS18 1-Channel Amp Class D Full-Range Monoblock 3500 Watts RMS/1ohm Red (FRP-3.5K/RD)

DS18 1-Channel Amp Class D Full-Range Monoblock 3500 Watts RMS/1ohm Red (FRP-3.5K/RD)

Best price now

$399.95at SLRspeedChecked Nov 9

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Price facts

  • Last seen at $399.95 at SLRspeed on Nov 9.

Our take on the DS18 1-Channel Amp Class D Full-Range Monoblock 3500 Watts RMS/1ohm Red (FRP-3.5K/RD)

The DS18 FRP-3.5K/RD is a single-channel Class D monoblock rated at 3500 watts RMS into 1 ohm. It is a full-range amp, so it can drive subwoofers or door speakers, which sets it apart from most monoblocks built only for bass. The red finish matches DS18's styling. It suits bass-heavy builds and SPL competitors who run low-impedance loads and want one amp for the whole system. Compared with premium monoblocks, it trades refinement and clean power at higher impedances for raw output at 1 ohm.

Best forBass-heavy subwoofer buildsSPL and competition setupsLow-impedance 1-ohm loadsFull-range single-amp systems
Pros
  • High 3500W RMS rating at 1 ohm
  • Class D design runs cooler and draws less current
  • Full-range output, not just sub-bass
  • Single-channel monoblock simplifies wiring
  • Red finish matches DS18 styling
Cons
  • Power drops sharply at higher impedances
  • Budget-tier internals versus premium monoblocks
  • Needs stout electrical upgrades to deliver rated power
  • Limited crossover and tuning features

DS18 1-Channel Amp Class D Full-Range Monoblock 3500 Watts RMS/1ohm Red (FRP-3.5K/RD) prices at every store

  • SLRspeedNew

    In stockReturn policy

    $399.95Checked Nov 9
    Visit SLRspeed

Also available at

  • XT MotorsportsCheck price at XT Motorsports

About the DS18 1-Channel Amp Class D Full-Range Monoblock 3500 Watts RMS/1ohm Red (FRP-3.5K/RD)

DS18 1-Channel Amp Class D Full-Range Monoblock 3500 Watts RMS/1ohm Red

Questions and answers

What impedance does this amp make its rated power at?
It is rated at 3500 watts RMS into 1 ohm. Output falls as impedance rises, so plan your subwoofer wiring for a 1-ohm final load to get the full rating.
Can it run door speakers as well as subwoofers?
Yes. It is a full-range monoblock, so it can drive speakers or subwoofers. Check that your speakers handle the power and set gains carefully.
Do I need electrical upgrades to run it?
At 1 ohm it draws high current. A upgraded alternator, a second battery or a stiffening capacitor and thick power cable are commonly needed to avoid voltage drop.
How is it different from a bass-only monoblock?
Most monoblocks are limited to sub-bass. This one plays full range, so it can power a whole system from one channel.
What is in the box?
The amp itself with its mounting hardware and owner's documentation. Check the listing for the exact included accessories before ordering.
Where is the DS18 1-Channel Amp Class D Full-Range Monoblock 3500 Watts RMS/1ohm Red (FRP-3.5K/RD) cheapest?
At SLRspeed, for $399.95, as of our latest check.
Where can I buy the DS18 1-Channel Amp Class D Full-Range Monoblock 3500 Watts RMS/1ohm Red (FRP-3.5K/RD)?
2 stores we checked sell it, including SLRspeed, XT Motorsports.

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