Description

JBL Apex PA1254
The JBL Apex PA1254 is a compact 4‑channel Class D amplifier designed to deliver clean, efficient power for car and powersports audio systems. It provides 125W RMS × 4 channels at 4Ω, making it ideal for driving multiple speakers with clarity and low distortion. The amplifier includes selectable high‑pass and low‑pass crossovers for system tuning, plus speaker‑level and low‑level inputs for flexible installation options. Built in a weather‑resistant, compact chassis, the Apex PA1254 is suited for cars, trucks, ATVs, and other vehicles where space is limited but sound quality matters. Its efficient Class D design helps reduce heat and electrical load while maximizing audio output.
Specification
| Specification | Value |
|---|---|
| Max Power | 1250 W Peak |
| RMS Power Output @ 2Ω (Full-Range) | 125 W × 4, <1% THD+N |
| RMS Power Output @ 4Ω (Full-Range) | 75 W × 4, <1% THD+N |
| RMS Power Output @ 4Ω Bridged (Full-Range) | 250 W × 2, <1% THD+N |
| Front Selectable Hi-Pass Filter | Off, 60 Hz, 80 Hz, 120 Hz @ 12 dB/octave |
| Rear Selectable All-/Hi-/Lo-Pass Filter | 60 Hz, 80 Hz, 120 Hz @ 12 dB/octave |
| Frequency Response | 20 Hz – 20 kHz |
| Signal-to-Noise Ratio (Full-Range) | >75 dB (ref 1 W output @ 4Ω) |
| Fuse Rating | 40 A |
About The Product
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.



























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