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Compact metal preamp with 3.5 mm and RCA ports, volume knob on top

LORDWORLD

LORDWORLD L1-MiINI Stereo Line Level Booster Amplifier Audio Preamp 20dB Gain + Volume Control

SKU CH-P352-G9DFB

Compact stereo preamp boosts low-level sources by up to 20 dB via 3.5 mm AUX or RCA inputs, with adjustable gain and volume control

  • Boost weak sources to drive amplifiers with 20dB maximum gain
  • Connect phones, TVs or MP3 players via 3.5mm AUX or stereo RCA inputs
  • Swap the NE5532P op-amp in its socket for custom sound tuning
  • Adjust output level precisely using the high-quality sealed potentiometer
  • Compact all-metal chassis shields circuitry and fits any audio setup

Compact stereo line booster for low-level sources

The LORDWORLD L1-MiINI is a compact stereo preamplifier that raises the output of portable players, phones, computers and similar low-level sources by up to 20 dB so they can drive a power amplifier or active speakers cleanly. It is built for listeners who need a simple gain stage without a full-size component.

3.5 mm and RCA connectivity with 26 V internal rail

The unit accepts signals through a 3.5 mm AUX jack or stereo RCA inputs and delivers them via stereo RCA outputs, fitting into most existing analogue chains. Its internal voltage boost circuit runs from a 26 V supply to provide ±12.5 V output swing, and the socketed NE5532P op-amp can be swapped for other dual op-amps if desired.

Sustained low-distortion output at fixed gain

Under continuous use the sealed potentiometer maintains a wide frequency range and stable dynamic response, delivering smooth, warm sound with ultra-low distortion. The all-metal enclosure shields the circuitry, and the fixed maximum gain of 20 dB prevents accidental overload during long sessions such as karaoke, recording or live events.

Highlights

  • Boost weak sources to drive amplifiers with 20dB maximum gain
  • Connect phones, TVs or MP3 players via 3.5mm AUX or stereo RCA inputs
  • Swap the NE5532P op-amp in its socket for custom sound tuning
  • Adjust output level precisely using the high-quality sealed potentiometer
  • Compact all-metal chassis shields circuitry and fits any audio setup

Specifications

BrandLORDWORLD

Questions about this item

At what gain level does the preamp hit its maximum clean output before clipping?

The circuit provides up to 20 dB of adjustable gain and runs from a 26 V supply to deliver ±12.5 V peak output, giving ample headroom for line-level signals.

How much heat or fan noise does the all-metal chassis produce during continuous operation?

The passive aluminium enclosure dissipates the low heat of the NE5532P op-amp silently, so there is no fan noise and the unit stays only slightly warm after hours of use.

Which cables or adapters must I already have to connect my phone and power amplifier?

You need a 3.5 mm stereo cable for the phone and a pair of RCA interconnects for the amplifier; the preamp includes both 3.5 mm and RCA inputs plus RCA outputs.

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