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GPulse Linear Audio Solutions

Converters · User manual

GP-XLR2RCA user manual

XLR to RCA Audiophile Converter

Thank you for choosing the GP-XLR2RCA signal converter. We appreciate your confidence in us for such an important purchase, and we built it to give you command over the sound your system produces.

Rev A · October 20266 chapters

View the GP-XLR2RCA
GP-XLR2RCA XLR to RCA Audiophile Converter, front panel

Specifications

As engraved on the unit.

G Pulse Linear · Audio SolutionsModel GP-XLR2RCARev A
Response
3 Hz – 100 kHz
THD
Below 0.1 %
Input
XLR balanced, 47 kΩ
Output impedance
100 Ω, RCA
Hum and noise
Unmeasurable
Signal gain
+3 dB
Maximum output
10 V RMS
Power
100–240 V AC
Dimensions
5 × 2 × 1.5 in
Weight
1 lb

The balanced input accepts 600 Ω lines and is RF filtered above 1 MHz; a ground-lift switch lifts the XLR input shields. Distortion is below the 0.1 % limit of an HP 334A analyzer; the SoundPlus chips used are rated at 0.0003 %. Maximum output into a 2 kΩ load.

Before you start

Connect first.
Power last.

Three things, in this order, every time you change your system.

Read before switching on

  1. Make every connection before you switch on this unit and the rest of your system.
  2. Never change connections while the system is on. Doing so can damage your equipment.
  3. Always start with the main system volume turned fully counterclockwise, to off. Mishaps happen, so take care.

Connections

Where it goes in your system.

Balanced XLR lineFrom the far end, any distance
GP-XLR2RCA front panel
GP-XLR2RCAXLR in · RCA out
AmplifierRCA input, close by

Matched cables

Use high-quality RCA and balanced XLR cables, with the left and right cables of equal length.

Long XLR, short RCA

XLR cables can run more than 100 ft with no loss of signal quality. Keep RCA cables short: about 6 ft is usually fine with quality cable.

Set-up

Set the controls.

Before you listen, set everything like this.

  • Power

    Switch it up. The green LED lights.

    Set to: on

  • Ground lift

    Leave it down. Move it up only if a ground loop causes hum.

    Set to: down

Then

  1. Switch on the main system and all amplifiers, with every volume control at minimum.
  2. Listen to your normal stereo first and make sure everything sounds right.

Design notes

How it was built.

+3 dB
Signal gain, with inverse conversion added.
100 ft+
XLR cable runs with no loss of signal quality.
65 kHz
Switching supply with no transformer, for noiseless DC.
  1. An all-metal housing shields the electronics from external RF sources and noise fields.
  2. The AC line input is fully RF filtered.
  3. The internal supply uses no transformer: an AC-to-DC switcher running at 65 kHz feeds ± linear regulators for noiseless DC power.

MaintenanceCare

  • Cleaning. Use a damp cloth only, never glass cleaners or alcohol-based products.

  • Surge protection. Put a surge protector on the power line, against a nearby lightning strike or a line-level overload.

Questions about your GP-XLR2RCA?

Talk it through with us.

Tell us what is in your system and what you want it to do. We answer set-up questions before and after you buy.