JBL X 4 power amplifier

JBL X4 power amplifier

JBL X4 amplifiers booster are not seasonal products, nor are they launched on a random marketing plan. They demonstrate perfect quality through rigorous internal r&d and evaluation processes. We intentionally assembled an experienced evaluation team to conduct blind listening tests on the prototype of the new amplifier and to compare it with a variety of similar linear amplifiers past and present and a range of competing products.

Optimize layout to reproduce sound as clearly as possible

It can amplify the input audio signal without causing distortion, drive multiple speaker impediments at any volume without pressure, and have the strength and stability required for professional-grade sound reproduction.

Eliminate switching noise and dead zones

Push the basic switching noise and related harmonics beyond the limits of human hearing without directly affecting the sound quality. The frequency response can be maintained flat throughout the frequency, technically shortening the shutdown time of both sets of outputs as much as possible without shortening the service life of the output device.

Supports multiple working modes

Built-in proprietary circuit design, support stereo/parallel/single channel bridge mode

Compact and simple design

2 gain control knobs,1 power switch,1 standby LED light, and 2 groups of 8 lights correspond to the working, signal, clipping and protection state of the sound channel respectively

Built-in protection circuit provides stable and reliable output

Prevent short circuit, overload, on/off noise, output DC, over-temperature, peak amplitude limit and other protection circuit; Soft start to prevent surge current impact;

Technical specifications

power

1 KHZ (EIA), 0.5% of THD

4 OHMS stereo (per channel) : 600W

8 OHMS stereo (per channel) : 400W

8 OhMS bridge: 1200W

4 OHMS stereo (per channel) for 1 min or more: 500W

8 OhMS bridge operation more than 1 minute: 1000W

performance

Frequency response: 20HZ-20khz, +0/ -1dB

Total harmonic distortion :(THD) <0.5%, 20hz-20khz

When IMD is 4:1, it is 60Hz and 7kHz respectively, from the maximum value to -30dB: <0.35%

Conversion speed: >15V/us

Voltage gain: 37dB

Damping coefficient (8 ohms), 10hz-400hz: >250

Signal-to-noise ratio (20Hz to 20 kHz, A weight) : >100dB

Crosspokes (for nominal output power) at 1kHz / 20 kHz: 20k ohms/10k ohms

Input sensitivity (rated power, 8ohMS) : 0.775V

Input impedance (rated) balanced/unbalanced: 20K ohMS /10k ohMS

structure

Protection: peak limit, DC protection, overcurrent protection, short circuit protection, overheat protection, soft start

Ventilation: The mechanism of convection by air after going

Cooling: strong internal air exhaust, fan cooling, quick adjustment, temperature protection

size

Size (W*H*D) 19 “x3.5” x14.9 “(483mm x89mm x378mm)

Net weight 13.5 kg

Transport weight: 15kg