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Diamond Audio D1 250.2 (D1250.2)

250W Max, D1 Series 2-Channel Amplifier

5.0

(1 review)

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The product on this page is discontinued.
General Features:
  • D1 Series 2-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 75 watts x 2 chan.
    • 2 ohms: 125 watts x 2 chan.
    • Bridged, 4 ohms: 250 watts x 1 chan.
  • Max power output: 250 watts
  • MOSFET power supply
  • LED power and protect indicators
  • Bass Boost/EQ (0-6 dB bass boost at 50 Hz)
  • 2/1-Channel operation
  • RCA Pass through for connecting multiple amplifiers
  • Preamp output
  • Speaker-level inputs with signal sensing for automatic turn-on
  • 3-Way System Protection circuitry (thermal, overload, and speaker short protection)
  • Polycarbonate end plates
  • Satin Black finish
  • Heavy duty aluminum alloy heatsink for extreme heat dissipation (20% more aluminum than previous models)
  • Silver-plated RCA level inputs
  • Silver-plated screw terminals
  • Variable low-pass filter (40-400 Hz, 12 dB/octave)
  • Variable low-pass filter (40-400 Hz, 12 dB/octave)
  • Frequency response: 20-20,000 Hz
  • Dimensions: 9-1/8"L x 8-1/2"W x 2-1/4"H
  • 8-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty
Power Specifications - Full Range Channels
RMS Power @ 4 ohms75 watts x 2 channels
RMS Power @ 2 ohms125 watts x 2 channels
RMS Power @ 1 ohmN/A
Bridged RMS Power250 watts x 1 channel
Peak Power Output250 watts x 1 channel
Amplifier Specifications
Amplifier ClassAB
Number of Channels2
Total Peak Power Output250 watts
Total RMS Power Output250 watts
Maximum Input Gauge Size8 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance Bridged4 ohms
THD at Rated RMS Power0.2%
Speaker Level InputsYes - with included adapter
Preamp OutputsNo
Built-in CrossoverLow-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency40 - 400 Hz
Low-Pass Crossover Frequency40 - 400 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio90 dB
Channel Separation50 dB
Bass Boost0 - 6 dB
Bass/Gain RemoteNo
Fan CooledNo
Fuse Rating30A x 1 
CEA-2006 CompliantNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderSonic Electronix
Customer Review Summary for Diamond Audio D1 250.2 (D1250.2)
Average Customer Rating is 5.0 out of 5 stars:
5.0
based on 1 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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100%
4 star:
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0%
3 star:
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2 star:
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1 star:
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what's this?
Average Attributes Rating:
Durability
4.0
Value
5.0
Features
5.0
Design
5.0
Usability
4.0
what's this?
Most Helpful Customer Reviews:
August 15, 2010 Awesome amp for the price
Review by
jsk from ny,ny
Overall
Durability
Value
Features
Design
Usability
I've had this for about a year and the price to performance is tops. This won't blow the roof off of your car, and is better suited to run your mids and tweets than to run a sub bridged.

It has to be underrated from the factory in terms of power delivery (or everything else is overrated, you decide). I was using it at maybe 30% of max gain before it topped out my OEM speakers on my GTI.

Its gets plenty loud with very little distortion even at high volume. And it is incredibly feature rich with crossovers, RCA pass throughs, high level inputs, etc.

Best of all, I have virtually no space to mount it but this thing is so small it fits anywhere.
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Product Summary

Manufacturer: Diamond Audio
Model number: D1250.2
UPC: 660715201002
Weight: 8.00 lbs
Internal SKU: d12502
Internal product ID: 18625
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Customer Testimonial

I ordered my stereo and speakers on a Tuesday morning before leaving for work and did not expect to receive it as quickly as I did. It arrived the next day. I called the business to ask a couple of questions regarding my order as was given professional and quality service.

- Will from Visalia Ca

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