CT-1500.1D 1500 Watts RMS Monoblock Car Amplifier vs CT-800.5D 1000 Watts RMS 5-Channel Car Amplifier

What separates them

Price history

• CT-1500.1D 1500 Watts RMS Monoblock Car Amplifier: lowest $199.99 on Oct 31 at Amazon; $199.99 on Nov 2.
• CT-800.5D 1000 Watts RMS 5-Channel Car Amplifier: lowest $219.99 on Oct 31 at CT Sounds; $219.99 on Nov 2.

Prices at every store

Specs compared

Questions and answers

Which is better for a subwoofer-only build?

The CT-1500.1D. It delivers 1500W RMS at 1 ohm into subwoofers, while the 800.5D's sub channel tops out at 400W.

Which is better for a full system on one amp?

The CT-800.5D. It powers four speakers at 100W each at 4 ohms plus a 200W sub channel, so you skip a second amplifier.

Is the 800.5D worth the extra money?

At recent lows it cost $219.99 versus $199.99 for the 1500.1D. If you need speaker channels too, one 800.5D is cheaper than a monoblock plus a separate 4-channel amp.

Can I run both amps together?

Yes. Use the 800.5D for the four speakers and the 1500.1D for the subwoofers. That gives full-range channels plus 1500W of sub power.

Which has cleaner input handling?

The 1500.1D has no reported input issue. Buyers of the 800.5D say its inputs clip early with pre-outs under 1.5V, so check your head unit's output voltage.

Do both include a remote bass knob?

Yes. Both ship with a remote bass knob, and both use a MOSFET power supply with over-voltage, under-voltage, over-current and thermal protection.