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Black rectangular amplifier board with silver heat sink, control knobs and Bluetooth 5.0 label

JR-502MT-Amplifier 2.0 dual-channel car amplifier 50W+50W Bluetooth 5.0

SKU CH-EQ6Q-E6B26 MPN JR-502MT-Amplifier

Dual-channel car amplifier delivers 50W per channel with Bluetooth 5.0 and independent tone controls

  • Amplifier channels2
  • Key featuresJR-502MT-Amplifier
  • Product colorBlack
  • Product dimensions6.0 in × 2.1 in × 9.0 in
  • Delivers 50W per channel for clear stereo sound
  • Bluetooth 5.0 streams audio up to 49ft with low latency
  • Extra-large heat sink keeps the amplifier cool during high-power use
  • Independent treble and bass knobs let you shape the sound
  • Compact 3.5 x 2.36 x 0.82 inch board fits tight DIY spaces

What this amplifier does

The JR-502MT-Amplifier is a 2.0 dual-channel car audio module that delivers 50W+50W stereo output. It runs on DC 12-24V and includes Bluetooth 5.0 plus an AUX input for phones, tablets or laptops. The board measures 6.0 x 2.1 x 9.0 inches and comes with an acrylic shell, copper columns, a large heat sink and a DC cable for DIY speaker builds.

The spec that decides fit

Each channel provides 50 watts into 4-8 ohm passive speakers, with a recommended speaker power of 15-50W for best effect. Distortion stays below 0.3% and the Bluetooth 5.0 link reaches 49 ft. The 5.5 x 2.1 mm DC jack accepts 12-24V supply. No other power ratings or impedance ranges are specified.

Behaviour under sustained load

An extra-large heat sink is fitted to dissipate heat during continuous high-power output, protecting the amplifier chips from thermal damage. The circuit uses 684 film capacitors and four red and grey ring inductors for low loss and high fidelity. Two chips add AM interference suppression to keep distortion low when the module runs hard.

How it compares

Measured against everything we stock in Car Audio Amplifiers, at today’s prices. Recalculated every night.

Price $37.99
Cheaper than about 91% of the 158 comparable items (median $225.49).

Specifications

Product
Brand nameJRGKJCP
Model nameJR-502MT-Amplifier
Part numberJR-502MT-Amplifier
Product colorBlack
Audio & video
Amplifier channels2
Size & build
Product dimensions6.0 in × 2.1 in × 9.0 in

Questions about this item

What does the 50W+50W rating mean for everyday listening?

The board delivers up to 50 watts per channel into 4–8 ohm speakers, giving clean stereo output at moderate volumes with distortion below .3%.

How does Bluetooth 5.0 affect connection stability and range?

Bluetooth 5.0 provides low-latency streaming up to 49 ft; the link stays stable unless an AUX cable is plugged in, which disables the wireless input.

What mounting hardware and space are needed to install the module?

The kit includes four 6 mm copper standoffs, screws, nuts and an acrylic shell; the board measures 3.5 x 2.36 x .82 in and requires a 12–24 V DC supply via a 5.5 x 2.1 mm jack.

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