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CT-700.1D 700 Watts RMS Monoblock Car Amplifier vs CT-1000.1D 1000 Watts RMS Monoblock Car Amplifier

Buy the CT-1000.1D if you want headroom and plan to run one or two subs hard. Buy the CT-700.1D if your subs are rated near 350-400 watts RMS at 2 ohms and you want to save money. Both are 1-ohm stable Class D monoblocks from CT Sounds with the same filters, bass knob and protection set. The CT-700.1D's lowest recorded price is $139.99 as of October 31, 2026; no price was given for the CT-1000.1D, so check its current price before deciding.

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CT-700.1D 700 Watts RMS Monoblock Car Amplifier

CT-700.1D 700 Watts RMS Monoblock Car Amplifier

5· 51 ratings

Choose the CT-700.1D if your subwoofer setup needs about 380 watts at 2 ohms or 700 watts at 1 ohm and you want the lower-cost option.

Pros
  • Lowest recorded price is $139.99 as of October 31, 2026
  • Compact chassis fits tight installs
  • Runs cool in hot weather per buyers
  • Includes remote bass knob
Cons
  • Only 380 W at 2 ohms, so less headroom
  • One buyer needed a replacement after 2.5 years
  • 200 W at 4 ohms limits sealed 4-ohm subs
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CT-1000.1D 1000 Watts RMS Monoblock Car Amplifier

What separates them

CT-700.1D 700 Watts RMS Monoblock Car AmplifierCT-1000.1D 1000 Watts RMS Monoblock Car Amplifier
RMS power at 1 ohm700 W x 1 at 14.4 V1000 W x 1 at 14.4 V
RMS power at 2 ohms380 W x 1650 W x 1
RMS power at 4 ohms200 W x 1350 W x 1
Amplifier classClass D monoblockClass D monoblock
Filters and bass boostLPF, subsonic filter, bass boost, remote bass knobLPF, subsonic filter, bass boost, remote bass knob
Protection circuitryHigh/low voltage, over current, over temperatureHigh/low voltage, over current, over temperature
StrappableYes, signal output is masterYes, signal output is master
Ratings count

Price history

$159.99$139.99
Oct 31Nov 2
  • CT-700.1D 700 Watts RMS Monoblock Car Amplifier: lowest $139.99 on Oct 31 at CT Sounds; $139.99 on Nov 1.
  • CT-1000.1D 1000 Watts RMS Monoblock Car Amplifier: lowest $159.99 on Nov 2 at CT Sounds.

Prices at every store

CT-700.1D 700 Watts RMS Monoblock Car Amplifier

  • CT SOUNDSCheck price at CT SOUNDS
  • Platinum High Performance Solutions, LLC.Check price at Platinum High Performance Solutions, LLC.
  • AmazonCheck price at Amazon
Prices and history →

CT-1000.1D 1000 Watts RMS Monoblock Car Amplifier

  • CT SoundsCheck price at CT Sounds
  • eBayCheck price at eBay
  • CT SOUNDSCheck price at CT SOUNDS
Prices and history →

Specs compared

SpecCT-700.1D 700 Watts RMS Monoblock Car AmplifierCT-1000.1D 1000 Watts RMS Monoblock Car Amplifier
Number Of Channels1-channel1-channel
ClassClass DClass D
With Bass ControlYes—
RMS Power Rating200 watts RMS—
Total Wattage700 watts—
Color—Black

Questions and answers

Which is better for two 12-inch subs?
The CT-1000.1D gives more headroom at 1 and 2 ohms. Pick the CT-700.1D only if your subs' combined RMS rating is around 350-400 watts at 2 ohms.
Is the CT-1000.1D worth the extra money?
Yes if you want 650 watts at 2 ohms or plan to add subs later. No price was given for the CT-1000.1D, so compare its current store price against the CT-700.1D's $139.99 as of October 31, 2026.
Which one lasts longer?
Both use the same Class D design and protection set. Buyers of the CT-1000.1D report one unit running 4 years, while a CT-700.1D buyer replaced his after 2.5 years. Neither has a clear durability edge.
Do both come with a bass knob?
Yes. Both include a remote bass knob and have LPF, subsonic filter and bass boost.
Can I strap two of them together?
Yes. Both are strappable, and the signal output is master on each.
Will either fit in a small car?
Both use the same compact Class D chassis, so fit is similar. The CT-1000.1D is the bigger power draw, so plan your wiring and fuse size.

Buying guides that pick them

  • Best car amplifiers
  • Best cheap Class D amplifiers

CT-1000.1D 1000 Watts RMS Monoblock Car Amplifier

5· 89 ratings

Choose the CT-1000.1D if you want 650 watts at 2 ohms or 1000 watts at 1 ohm and room to upgrade subs later.

Pros
  • 1000 W at 1 ohm and 650 W at 2 ohms
  • Buyers say it makes close to rated power
  • Runs cool and handles kick drums well
  • More ratings than the CT-700.1D, 89 vs 51
Cons
  • No price was given, so compare stores before buying
  • Draws more current, so check your alternator and wiring
  • One unit shorted after about 4 years
5 of 5 from 51 ratings
5 of 5 from 89 ratings