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Compact silver metal box with volume knob and RCA, 3.5 mm, 5-DIN ports

LORDWORLD

LORDWORLD L1 Mini Stereo Line Level Booster Amplifier Audio Preamp 20dB Gain Volume Control

SKU CH-2XVY-KBAMC

Boosts low-level audio sources up to 20 dB with adjustable gain, 3.5 mm AUX, RCA and 5-DIN I/O, DC 5-24 V input, NE5532P op-amp socket, and all-metal shielding

  • Versatile connectivity with 3.5 mm AUX, RCA and 5-DIN inputs and outputs
  • Up to 20 dB adjustable gain matches diverse low-level sources
  • Internal boost to 26 V delivers ±12.5 V output amplitude for clean headroom
  • Swappable NE5532P op-amp socket enables DIY sound tuning
  • All-metal shielded chassis rejects electromagnetic interference for ultra-low distortion

LORDWORLD L1 Mini Stereo Line Level Booster

The LORDWORLD L1 is a compact stereo line-level booster and preamplifier designed to raise low-level audio signals from portable devices, computers or TVs up to the voltage required by power amplifiers or active speakers. It provides up to 20dB of adjustable gain and operates from a wide DC 5-24V supply while internally generating a 26V rail for ±12.5V output swing. The all-metal enclosure shields the double-sided PCB from electromagnetic interference.

Audio enthusiasts needing flexible gain matching

This unit suits listeners who want to bridge the gap between consumer line outputs and professional or high-sensitivity amplifier inputs, and who appreciate the ability to swap the socketed NE5532P op-amp for alternative devices. It is not intended for users requiring a built-in power amplifier, digital inputs, wireless streaming, phono equalisation or multi-channel surround processing.

20dB gain range with wide voltage headroom

The preamp comfortably drives typical power-amplifier inputs from smartphones, tablets, portable CD players or game consoles, delivering smooth, warm tonality with ultra-low distortion through its high-quality sealed potentiometer. Headroom diminishes when source levels are already near professional line voltage or when the load impedance is unusually low, limiting further clean boost.

How it compares

Measured against everything we stock in Wi-Fi & Bluetooth Audio Devices, at today’s prices. Recalculated every night.

Price $84.99
Pricier than about 61% of the 297 comparable items (median $63.99).

Specifications

Product
Brand nameLORDWORLD

Questions about this item

What power supply do I need to run the L1 preamp?

The unit accepts any DC source from 5 V to 24 V and internally steps it up to 26 V for ±12.5 V rails, so a standard 12 V or 24 V adapter works.

Will the 3.5 mm and RCA connections on the L1 work with my vintage 5-DIN gear?

Yes — the L1 provides both stereo RCA and 5-DIN inputs and outputs alongside the 3.5 mm jack, letting you bridge modern and legacy equipment directly.

How can I verify the L1 is delivering its full 20 dB gain after installation?

Feed a known-level signal into the 3.5 mm or RCA input, set the potentiometer to maximum, and measure the output with a multimeter or oscilloscope; you should see roughly ten times the input voltage.

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