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Deal.ai › Hifonics
Hifonics
Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier

Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier

3(4 ratings)

Best price now

$199.99at AmazonChecked 8 h ago

43% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $199.99 at Amazon (checked Nov 13, 2026).
  • Checked at 14 stores.

Our take on the Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier

The Hifonics A2500.5D is a five-channel car amplifier from the Alpha series that runs a full system — front and rear speakers plus a subwoofer — from one chassis. It uses Hifonics' Super D-Class full-range topology and is rated at 2500 watts total, with the subwoofer channel rated at 1 x 750 watts at 1 ohm. It suits drivers who want one compact amp instead of separate four-channel and mono units. Against five-channel rivals it stands out on rated sub-channel power at low impedance, but it is a large, power-hungry Class D design that needs solid wiring and a stout charging system.

Best forBuilding a full system with one ampDriving a subwoofer at 1 ohmDrivers with upgraded electricalBudget-minded five-channel builds
Pros
  • Five channels cover front, rear and sub from one unit
  • Sub channel rated at 750 watts at 1 ohm
  • Full-range Super D-Class design
  • Compact footprint for a five-channel amp
Cons
  • 2500 watts is a peak-style total, not per-channel RMS
  • Needs heavy-gauge wiring and a strong alternator
  • Class D full-range amps can hiss at low volume
  • Setup and gain tuning take care

Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier prices at every store

  • WalmartNew

    In stock

    $199.99Free shippingChecked 8 h ago
    Visit Walmart
  • Best BuyNew

    In stock

    $199.99Free shippingChecked 8 h ago
    Visit Best Buy
  • Creative AudioNew

    In stock

    $199.99Free shippingChecked 8 h ago
    Visit Creative Audio
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $199.99Free shippingChecked 8 h ago
    Visit Amazon
  • Newegg.comNew

    Availability unknownSold by AetherWide

    $289.99Checked 8 h ago
    Visit Newegg.com
  • eBayNew

    Availability unknownSold by cybervalue

    $349.99Checked 8 h ago
    Visit eBay
  • SonicElectronix.comNew

    Availability unknown

    $349.99Checked 8 h ago
    Visit SonicElectronix.com
  • vminnovations.comNew

    Availability unknown

    $349.99Checked 8 h ago
    Visit vminnovations.com
  • DBs Car AudioNew

    Availability unknown

    $349.99Checked 8 h ago
    Visit DBs Car Audio
  • Online Car StereoNew

    Availability unknown

    $349.99Checked 8 h ago
    Visit Online Car Stereo
  • East Car AudioNew

    Availability unknown

    $389.99Checked 8 h ago
    Visit East Car Audio
  • Fuego Bass ShopNew

    Availability unknown

    $389.99Checked 8 h ago
    Visit Fuego Bass Shop
  • SearsNew

    Availability unknown

    $610.49Checked 8 h ago
    Visit Sears
  • Lowe'sNew

    Out of stock

    $349.99Free shippingChecked 8 h ago
    Visit Lowe's

Store links may earn us a commission.

Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier price history

Lowest price we've seen: $199.99 on Nov 13 at Walmart. Tracked across 14 stores since Nov 13.

About the Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier

The Hifonics A2500.5D is a 5-channel car audio amplifier from the ALPHA Series. It is a Full Range Super D-Class design rated at 2500 watts. Channel 5 is the subwoofer channel.

It has an electronic crossover with a variable high-pass filter on channels 1 to 4 and a variable low-pass filter on channel 5. A bass EQ with bass boost is included. It accepts speaker-level audio inputs.

Class
Full Range Super D-Class
Channels
5
Power at 1 ohm
1 x 750 watts (subwoofer, CH5 only)
Power at 2 ohms
4 x 100 watts + 1 x 450 watts on CH5
Power at 4 ohms
4 x 60 watts + 1 x 250 watts on CH5
Crossover
Electronic
High-pass crossover
Variable, 12 dB per octave, 10Hz-250Hz on CH1 & 2 and CH3 & 4
Low-pass crossover
Variable, 12 dB per octave, 50Hz-250Hz, CH5 only
Tone control
Bass EQ
Bass boost
0-12 dB at 45Hz
Input voltage
Variable, 200mV-10V
Signal to noise
>85 dB
Frequency response
CH1-4: 10Hz-250Hz; CH5: 50Hz-250kHz
THD
<0.05%
Speaker-level inputs
Yes
Power terminal
12V/GND, 12 AWG
Speaker terminals
CH1-4: 18 AWG; CH5: 16 AWG
Fusing
Use external fuse
Turn-on circuit
Switched; remote turn-on / signal sense on (CH1-4 only)
Heatsink size
13 in L x 5.75 in D x 2.37 in H
Dimensions
17.88" x 7" x 3.5"
Color
Black

Specifications

color
Black
size
17.88" x 7" x 3.5"

Questions and answers

Is the 2500 watts RMS or peak?
Treat 2500 watts as the headline total. The only figure given is 1 x 750 watts at 1 ohm on the sub channel; check the per-channel RMS ratings before matching speakers.
Can it run a whole system on its own?
Yes. Five channels let you power front speakers, rear speakers and a subwoofer from one amp, which replaces a four-channel plus a mono amp.
What impedance can the sub channel handle?
The sub channel is rated down to 1 ohm at 750 watts. Wire your sub to match that load and keep the other channels within their rated impedance.
How big is it?
It measures 17.88 x 7 x 3.5 inches, so plan a mounting spot with clearance for wiring on both ends.
Does it need electrical upgrades?
An amp rated this high draws serious current. Use heavy-gauge power wire, a fuse at the battery, and expect dimming lights on a stock electrical system.
Where is the Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier cheapest?
At Amazon, for $199.99, 43% under what the other stores charge, as of our latest check.
What do buyers say about the Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier?
Rated 3 out of 5 from 4 ratings.
Where can I buy the Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier?
14 stores we checked sell it, including Amazon, Walmart, Best Buy, Creative Audio, Newegg.com.

Stores we've priced the Hifonics A2500.5D 2500 Watts 5-Channel Super D-Class Stereo Car Audio Amplifier at

  • Best Buy deals and prices
  • Creative Audio deals and prices
  • East Car Audio deals and prices
  • Lowe's deals and prices
  • Newegg deals and prices
  • Sears deals and prices
  • SonicElectronix.com deals and prices
  • vminnovations.com deals and prices
  • Walmart deals and prices
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