Garage
Shop

See all parts that fit your 1981 G2500

Hifonics Colossus 6.5K (Factory Refurbished)

Mount Olympus 3200W RMS Ultimate Performance Dual Monoblock Ultra Class D Amplifier

Hifonics
Shop all Hifonics
Product videos
highlight-star-icon

• 3250W RMS
• 1625W x 2 Chan @ 1 Ohm
• Wired HFR-G1 Remote Bass Level Control
• Variable Bass Boost
• Alloy Finned Heatsink

Learn more about the LS-colossus65k-RB

We apologize

This item has been discontinued

Product Highlights


• 3250W RMS
• 1625W x 2 Chan @ 1 Ohm
• Wired HFR-G1 Remote Bass Level Control
• Variable Bass Boost
• Alloy Finned Heatsink

Description


Hifonics brand icon

Authorized dealer

Item Condition - Refurbished:

A manufacturer refurbished product will function like new with all parts inspected or replaced as necessary. There may be slight cosmetic issues such as scratches or similar. See the description for additional details.

Product Features

  • Dual Hybrid 2-Channel Ultra Class D Car Amplifier
  • RMS Power Rating (14.4V):
    • 4 ohm: 625 watts x 2 chan.
    • 2 ohm: 1125 watts x 2 chan.
    • 1 ohm: 1625 watts x 2 chan.
    • Bridged, 4 ohm: 2250 watts x 1 chan.
    • Bridged, 2 ohm: 3250 watts x 1 chan.
  • Pulse Width Modulated MOSFET power supply
  • Wired CLSR-1 remote bass level control included
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +10 dB bass boost at 15-35 Hz, narrow or wide)
  • 2/1 channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-Way System Protection circuitry (thermal, slipping, and speaker short protection)
  • Heavy duty aluminum alloy finned heatsink for extreme heat dissipation
  • Blue LED Hifonics badge
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Input sensitivity:
    • Line Input: 200mV-9V
    • Balanced Input: 200mV-18V
  • Variable low-pass filter (35-250 Hz)
  • Subsonic filter (15-35 Hz)
  • Phase Shift: 0-180°
  • Damping factor: >350
  • Frequency Response: 15-250 Hz
  • CEA-2006 Certified Amplifier
  • External 300-350 amp fuse required
  • Dimensions: 23-3/4"L x 9"W x 2-12/16"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
600 watts x 2 channel
RMS Power @ 2 ohms
1100 watts x 2 channel
RMS Power @ 1 ohm
1600 watts x 2 channel
Bridged RMS Power
3200 watts x 1 channel
Amplifier Specifications
Series
Mt. Olympus Series
Amplifier Class
D
Number of Channels
2-Channel
Total RMS Power Output
3200 watts
Maximum Input Gauge Size
1/0 AWG
Minimum Impedance Unbridged
1 ohm
Minimum Impedance Bridged
2 ohms
THD at Rated RMS Power
<1.0%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
35 - 250 Hz
Subsonic Filter
15 - 35 Hz
Signal-to-Noise Ratio
>95 dB
Bass Boost
0 - 10 dB
Remote bass/level controller
Yes
Fuse Rating
Fused Externally
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

LS-COLOSSUS 6.5K-RB

Weight:

24.00lbs

Internal SKU:

LS-colossus65k-RB

Internal Product ID:

94660

Product and How-to Videos


Customer Ratings & Reviews


Hifonics Colossus 6.5K (Factory Refurbished) thumbnail image

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



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


X2200.1D small

Hifonics X2200.1D (Factory Refurbished)

2200W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

$149.99

List price $599.99

Related Searches


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

1981 GMC G2500

2020 Dodge Durango

1981 Buick LeSabre

2018 BMW X4

1993 Mazda 626

2006 Lincoln Mark LT

1981 BMW 528i

1978 Dodge B200

2024 GMC Terrain

2005 Audi TT

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.