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Small silver aluminium box with gold RCA sockets and a volume knob

LORDWORLD

LORDWORLD Passive Preamp ALPS A50K 24K Gold RCA Hi-Fi Version

SKU CH-AWEJ-FWRSV

Passive volume controller with ALPS A50K potentiometer and 24K gold RCA connectors for lossless signal attenuation

  • Pure sound without colouration thanks to passive no-gain design
  • Smooth, stepless volume control via ALPS A50K dual potentiometer
  • Signal clarity from 24K gold-plated CMC-816U oxygen-free copper RCA terminals
  • Compact CNC-machined aluminium chassis fits any system
  • Simple single RCA in/out and volume knob for minimal signal path

Passive Volume Control for High-Output Sources

The LORDWORLD passive preamp sits between a high-output DAC, CD player or PC sound card and an active speaker or power amplifier. It adds no gain, so the signal passes through without coloration or distortion. The single stereo RCA input and output keep the path short and simple. It is built for listeners who want transparent level control without active circuitry.

Replacing Software or Inline Attenuators

Digital volume reduction in a computer or streamer can lower bit depth and dynamic range. This unit replaces that step with an ALPS A50K dual potentiometer that operates without discrete steps. The jump is worthwhile when the source delivers a strong signal and the downstream gear has ample gain of its own. It is not for buyers who need voltage gain or multiple switched inputs.

Integration Into a Minimal Signal Chain

The CNC-machined aluminium chassis houses only the potentiometer and two US CMC-816U RCA connectors plated with 24K gold over oxygen-free copper. No external power supply is required, freeing a mains socket and eliminating ground-loop risk. The compact footprint suits desktop and rack systems alike. It does not suit installations that require remote control, balanced connections or source switching.

Highlights

  • Pure sound without colouration thanks to passive no-gain design
  • Smooth, stepless volume control via ALPS A50K dual potentiometer
  • Signal clarity from 24K gold-plated CMC-816U oxygen-free copper RCA terminals
  • Compact CNC-machined aluminium chassis fits any system
  • Simple single RCA in/out and volume knob for minimal signal path

Specifications

BrandLORDWORLD

Questions about this item

What size RCA cables fit the 24K gold CMC-816U connectors on this passive preamp?

Standard RCA plugs mate directly with the 24K gold CMC-816U input and output terminals; no adapters or special cable diameters are required.

How do I connect the ALPS A50K volume control between my DAC and active speakers without adding gain?

Run RCA cables from the DAC output to the preamp input, then from the preamp output to the active speaker inputs; the ALPS A50K attenuates the signal passively so no power supply or gain stage is involved.

Will the ALPS A50K potentiometer develop channel imbalance or noise over time?

The stepped-free ALPS A50K dual potentiometer is built for long-term tracking accuracy; occasional contact-cleaner spray through the shaft opening keeps rotation smooth and noise-free.

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