About: JBL Apex PA1254 Weather-Resistant High-Performance 4-Channel Amplifier - 75W RMS x 4 

The Apex Series PA1254 powersports amplifiers deliver efficient Class D power, from an ultra-compact chassis, designed to fit into tight spaces and withstand outdoor environments without missing a beat. Available with 4-channels of output power, the Apex Series PA1254 includes selectable front/rear electronic crossover frequency adjustment, with rear lo-pass capability, for quick and easy installation. Plus, it has been engineered for harsh conditions, with power and performance to meet the needs of most audio systems making it the perfect match for all of your JBL car, marine and powersports products.

Ultra-compact Aluminum Chassis

JBL Apex powersports amplifiers feature an ultra-compact aluminum chassis and small footprint design to allow for installation almost anywhere.

Conformal-Coated

PCB JBL Apex powersports amplifiers are engineered to withstand harsh conditions, with fully “marinized” circuit boards to ensure flawless power delivery, year after year.

Big Dynamic Power Dynamic

Class D output power is perfectly matched to meet the needs for your JBL car, marine and powersports products.

Full-Range Outputs and Selectable Crossovers

The Apex PA1254 amplifier features front all-/high-pass crossover filters, selectable rear all-/hi-/ lo-pass crossover filters, and front/rear selectable 12dB per octave electronic crossover slopes from 60-, 80-, 120Hz to allow for quick and easy installation. High- and low-level inputs Speaker-level and low-level inputs let JBL Apex amplifiers integrate with just about any audio input.

Harman Standard Reliability

Testing JBL Apex amplifiers have to go through environmental testing that would destroy other amplifiers. JBL freezes them, bakes them, shakes them, blasts them with ultraviolet light & salt spray and drives them at full power for days at a time.

JBL Industrial Design

JBL engineers every product with a high level of design. In applications where the Apex PA1254 will be visible, it will enhance the vehicles aesthetic not take away from it.

Specifications: 

• Compact 4-channel amplifier
• 75 watts RMS x 4 at 4 ohms
• 125 watts RMS x 4 at 2 ohms
• 250 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
• Selectable high-pass filter (60, 80, 120 Hz at 12 dB/octave) on front channels
• Selectable high- or low-pass filter (60, 80, 120 Hz at 12 dB/octave) on rear channels
• Class D amp technology (frequency response: 20-20,000 Hz)
• Weather-resistant aluminum chassis
• Preamp and speaker-level inputs
• wire-to-RCA adapters for speaker-level inputs included
• Wiring and hardware not included with amplifier
• Fuse rating: 40A
• Dimensions (W x H x D): 10-1/8" x 1-3/4" x 3-5/16"

What's in the Box:

• 4-Channel amplifier
• 4 Speaker to RCA adapters
• Two 40-amp ATO fuses (1 installed/1 spare)
• Four 5/8" Screws
• Four 5" Zip ties
• Owner's manual (English/ French/ Spanish/ Portuguese/ Chinese/ Japanese/ Korean)
• 2 Window stickers