Garage
Shop

See all parts that fit your 2019 A3

Hifonics HFi2500D Open Box

(Open Box) 2500W RMS, Class D Monoblock HFi Series Amplifier (HFi 2500D)

Hifonics
Shop all Hifonics
Product videos
highlight-star-icon

HFi Series Monoblock Class D Car Amplifier • 1700W x 1-Chan. @ 2 Ohm • 2500W x 1-Chan. @ 1 Ohm • Wired HFR-3 Bass Remote • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

Learn more about the LS-hfi2500d-OB

We apologize

This item has been discontinued

Product Highlights


HFi Series Monoblock Class D Car Amplifier • 1700W x 1-Chan. @ 2 Ohm • 2500W x 1-Chan. @ 1 Ohm • Wired HFR-3 Bass Remote • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

Description


Hifonics brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

  • HFi Series Single Channel Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 850 watts x 1 chan.
    • 2 ohm: 1700 watts x 1 chan.
    • 1 ohm: 2500 watts x 1 chan.
  • Max power output: 2500 watts
  • Pulse Width Modulated (PWM) MOSFET power supply
  • LED power (blue) and protect (red) indicators
  • Wired HFR-3 remote bass level control included
  • Variable Bass Boost (0 to +10 dB bass boost at 45 Hz)
  • Blue illuminated Hifonics badge
  • Soft start sound function
  • Mono channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 4-Way System Protection circuitry (thermal, overload, DC, and speaker short protection)
  • Dual 12 gauge speaker terminals simplify hookup
  • Heavy duty aluminum alloy vented heatsink for maximum heat dissipation
  • Silver nickle-plated RCA level inputs
  • Silver nickle-plated screw terminals
  • Input sensitivity:
    • Variable level: 200mV-6V
  • Variable low-pass filter (30-250 Hz, 24 dB/octave)
  • Subsonic filter (15-35 Hz)
  • Damping factor: >200
  • Frequency response: 15-250 Hz
  • External 250A fuse required and sold separately
  • Dimensions: 19-3/4"L x 8-13/16"W x 2-7/16"H
  • 0-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.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
850 watts x 1 channel
RMS Power @ 2 ohms
1700 watts x 1 channel
RMS Power @ 1 ohm
2500 watts x 1 channel
Bridged RMS Power
Not Bridgeable
Amplifier Specifications
Amplifier Class
D
Number of Channels
1 - Mono
Total RMS Power Output
2500 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
1 ohm
Minimum Impedance Bridged
Not Bridgeable
THD at Rated RMS Power
0.95%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
30 - 250 Hz
Subsonic Filter
15 - 35 Hz
Signal-to-Noise Ratio
<0.1 dB
Bass Boost
0 - 10 dB
Remote bass/level controller
Yes
Fuse Rating
250A x 1 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

HFi2500D-OB

Weight:

19.00lbs

Internal SKU:

LS-hfi2500d-OB

Internal Product ID:

27189

Product and How-to Videos


Customer Ratings & Reviews


Hifonics HFi2500D Open Box thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Great Amp!

This was a great deal! This is one of the best amps I have owned.

By Marc on May 17, 2016 Checkmark Icon Verified purchase

1 found this helpful




HFi1000D small

Hifonics HFi1000D Open Box

(Open Box) 1000W RMS, Class D Monoblock HFi Series Amplifier (HFi 1000D)

(1)

$119.99

List price $499.99

ZR800-CW small

JL Audio ZR800-CW

225W 8.0" Evolution ZR Series Component Midbass Woofer Driver

(7)

$229.99

List price $259.99

TS8512-22 small

MTX Audio TS8512-22

12" Dual 2 ohm Thunder Square TS85 Series Car Subwoofer

(3)

$249.95

List price $549.95

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2000 Dodge Neon

2019 Audi A3

2004 BMW X5

1997 Dodge Dakota

2007 Ford Ranger

2009 Audi A6

2002 Suzuki Vitara

2024 Tesla Model S

2018 Subaru WRX

1978 Buick Regal

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.