Notification of the PRICING, our BIGGEST DISCOUNT, BEST DEAL, will be announced by email approximately two weeks before departure to the USA. You will have 72-hours to purchase (the balance owed). If you choose not to buy, CT Sounds will refund your $10 reservation fee within 7 business days. We anticipate orders will ship out 60-90 days after the container ship departs for the USA.


CT Sound’s AT-900.1d Monoblock Car Amplifier is one true and sheer class amplifier with a very optimistic size. This class-D amplifier makes sure that internal circuitry operates and sustains safely even while busy with its full load of 1800 watts (max) of power at 12.8 volts. It comes to you with a remote bass knob so that you can control the gain pretty easily.



  1. MOSFET PWM (Pulse Width Modulated) power supply
  2. Soft turn on circuitry
  3. 1 ohm stable mono operation
  4. Thermal, DC offset, overload and speaker short protection inbuilt
  5. Nickel plated RCAs, thus low resistance inputs to the amp
  6. LED power and protection indicators
  7. It comes with Remote Bass Knob; therefore allowing you to control power on/off or subwoofer bass level easily
  8. This is a purely Class-D amplifier where the audio amplification is solely controlled by electronic amplifying switches inside; making the gain much more effective and enthusiastic

Amplifier Ratings:

  • 1Ω @ 12.8V, 900W (RMS) | 1800W (MAX)
  • 2Ω @ 12.8V, 450W (RMS) | 900W (MAX)
  • 4Ω @ 12.8V, 225W (RMS) | 450W (MAX)

Technical specifications:

  1. No of channel: 1
  2. Frequency response: 10Hz ~ 250Hz
  3. Gain adjustment: 0.2v ~ 5v
  4. Subsonic adjustment: 10Hz ~ 50Hz
  5. Phase adjustment: 0º to 180º
  6. Bass boost: 0dB ~ +18dB
  7. Signal to noise ratio: 100dB
  8. Damping factor: 180
  9. Minimum impedance: 1Ω (ohm)
  10. Low Pass filter: 35Hz to 250Hz
  11. No of fuse: 3 x 40A (each)
  12. Strappable: Master/Slave switch
  13. Bass knob: Remote gain control, clip light indicator, built in voltmeter & push-able on/off switch


  • 190mm (W) x 54.5mm (H) x 300mm (L)
AT-900.1d Amplifier ® [Reservation Fee]

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