Why Shop Sonic Free Shipping Free Tech Support Easy Returns Low Price Guarantee Details
Free Kicker active-style headphones with a purchase of $100+ of Kicker Gear
Your Filters
Manufacturer:
- MB Quart [x]
Narrow Your Results
Price range: $80–$250
Items in range: 9
Availability:
Amplifier Class: 
AB (9)
Number of Channels: 
Total RMS Power Output: 
Total Peak Power Output: 
Minimum Impedance Unbridged: 
Minimum Impedance Bridged: 
4 ohms (9)
Bass/Gain Remote: 
No (9)
Preamp Outputs: 
No (5)
1 pair (4)
Built-in Crossover: 
Speaker Level Inputs: 
No (9)
CEA-2006 Compliant: 
No (8)
Yes (1)
Maximum Input Gauge Size: 
8 AWG (5)
4 AWG (4)

MB Quart 4-Channel Amplifiers

onx4125 thumbnail
1000W RMS, ONYX Series 4-Channel Amplifier (ONX-4.125)
Free Ground Shipping within the 48 states
ONYX Series 4-Channel Class A/B Car Amplifier • 250W x 4 Chan @ 2 Ohm • 125W x 4 Chan @ 4 Ohm • Unbalanced RCA Input Jack • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish
$179.95
Shipping: FREE
To the US 48 • other rates
onx480 thumbnail
4-Channel ONYX Series Car Amplifier (ONX-4.80)
Free Ground Shipping within the 48 states
ONYX Series 4-Channel Class A/B Car Amplifier • 160W x 4 Chan @ 2 Ohm • 80W x 4 Chan @ 4 Ohm • Unbalanced RCA Input Jack • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish
$119.95
Shipping: FREE
To the US 48 • other rates
Availability: Only 1 left in stock
fx450 thumbnail
400W RMS, 4-Channel Formula Series Amplifier
Free Ground Shipping within the 48 states
Formula Series 4-Channel Class A/B Car Amplifier • 50W at 4 Ohms • 100W at 2 Ohms • PWM MOSFET Power Supply • Variable High Pass Filter • Variable Low Pass Filer • Variable Bass Boost • 4 Way Protection Circuitry
$89.95
Shipping: FREE
To the US 48 • other rates
fx4100 thumbnail
800W RMS, 4-Channel Formula Series Amplifier
Free Ground Shipping within the 48 states
Formula Series 4-Channel Class A/B Car Amplifier • 100W at 4 Ohms • 200W at 2 Ohms • PWM MOSFET Power Supply • Variable High Pass Filter • Variable Low Pass Filer • Variable Bass Boost • 4 Way Protection Circuitry
$139.95
Shipping: FREE
To the US 48 • other rates
fx470 thumbnail
560W RMS, 4-Channel Formula Series Amplifier
Free Ground Shipping within the 48 states
Formula Series 4-Channel Class A/B Car Amplifier • 70W at 4 Ohms • 140W at 2 Ohms • PWM MOSFET Power Supply • Variable High Pass Filter • Variable Low Pass Filer • Variable Bass Boost • 4 Way Protection Circuitry
$109.95
Shipping: FREE
To the US 48 • other rates
fx4100_ispkbl8bg thumbnail
800W Max, 4-Channel Formula Amplifier + Raptor 8 Gauge Amp Kit + Cache CTM Sound Dampening Material
Free Ground Shipping within the 48 states
Formula Series 4-Channel Class A/B Car Amplifier • PWM MOSFET Power Supply • 4-way Protection Circuitry • Variable Low-Pass Filter • Variable High-Pass Filter • Amplifier Installation Kit with RCA Interconnect Cable • Designed for Systems Up to 1000W • Five 18" x 32" Pieces of Dead Shield Sound Dampening Material
$249.99
Shipping: FREE
To the US 48 • other rates
onx460 thumbnail
480W RMS, ONYX Series 4-Channel Amplifier (ONX-4.60)
Free Ground Shipping within the 48 states
ONYX Series 4-Channel Class A/B Car Amplifier • 120W x 4 Chan @ 2 Ohm • 60W x 4 Chan @ 4 Ohm • Unbalanced RCA Input Jack • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish
$109.95
Shipping: FREE
To the US 48 • other rates
Availability: Out of Stock - Backorder
nau460 thumbnail
360W Max, Nautic Series 4-Channel Marine Amplifier
Free Ground Shipping within the 48 states
Nautic Series 4-Channel Class A/B Marine Amplifier • UV And Salt Water Resistant • 60W x 4 Chan. @ 4 Ohms • 90W x 4 Chan. @ 2 Ohms • Full Range Line Outputs • 4-Way System Protection • Gold-Plated RCA Level Inputs
$129.95
Shipping: FREE
To the US 48 • other rates
Availability: Out of Stock - Backorder
onx460_ispkbl4bg thumbnail
480W Max, 4-Channel ONYX Amplifier + Raptor 4 Gauge Amp Kit + Cache CTM Sound Dampening Material
Free Ground Shipping within the 48 states
ONYX Series 4-Channel Class A/B Car Amplifier • PWM MOSFET Power Supply • 4-way Protection Circuitry • Variable Low-Pass Filter • Variable High-Pass Filter • Amplifier Installation Kit with RCA Interconnect Cable • Designed for Systems Up to 1000W • Five 18" x 32" Pieces of Dead Shield Sound Dampening Material
$229.91
Shipping: FREE
To the US 48 • other rates
Availability: Out of Stock - Backorder
Change zip[X]
Enter your zip code below to get accurate shipping quotes:
Zip: