Updated Sept 26, 2023

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The Wright Audio
LT-6P Stereo Tube Preamplifier

Wright Audio LT-6P Preamplifier


LT-6P Preamplifier Front


Audio signals at the source components are at their most delicate.  It's at this earliest stage where tube-type pre-amplification seems to best preserve the signal's integrity. 

The Wright Audio LT-6P not only maintains signal integrity but also allows for Bass and Treble adjustment due to the wide variety of tonal balances in today's digital sources as well as the past's analog recordings.  Music lovers will especially appreciate the control over the widely varying tonal balances of vinyl records and digital internet sources.

The Bass and Treble Controls in this preamplifier are passive.  Other than the controls themselves and very few associated parts, there are no other devices in the signal path. 

This approach is unlike traditional 'active' feedback-type controls which require an additional amplification stage in the signal path and its associated distortions which have given some audiophiles reason to dislike these controls.   Due to the passive nature of the controls, they can't be bypassed, but the controls allows the line amplification stage to operate in an improved, better-sounding range.  This preamplifier actually sounds better with the controls in their neutral position than many which do not have them.

The preamplifier uses a vacuum tube, filtered power supply operating at less than one-sixth of its capacity to maintain the purity of the signal.  There are no solid-state devices in the preamplifier with the exception of the tube heaters' power supply.  Also, there are no circuit boards allowing shorter signal paths and for future possible circuit and parts upgrades with relative ease.

The capabilities of handling up to six inputs, two fixed-level outputs and two independently powered and isolated variable outputs provides maximum versatility for any installation.  Yet installing and using the preamplifier is completely intuitive.  The high-visibility of the front panel settings from a few feet away avoids illuminated displays which can fail altogether over time.

The LT-6P Stereo Tube Preamplifier offers the dynamics, soundstage dimensionality, nuance and clarity which make listening to music the indescribable joy it should be.


Features and Specifications
(Specifications subject to change.)

  • Controls:
    Source Selector (CD, Tuner, Video, Line 1, Line 2, Line 3)
    Fixed Level Output Switch
    Main Stereo Volume Control
    Separate Left and Right Channel Volume Level Preset Controls enables channel balance.
    Bass, Treble Controls

  • Preamplifier accommodates any line-level device with an analog audio output except Phono.  Six inputs.

  • Passive Fixed Level Output Switch selects between two outputs for use with a stand-alone headphone amplifier, any type of wireless transmitter, recording device or similar.  'Off' position isolates connected devices from each other and the preamplifier.  Preamplifier need not be powered on for this feature.

  • Two electrically isolated, but identical outputs for driving the power amplifier, a subwoofer system or other device.   Drives up to about 50 feet of low-capacitance cable into a minimum of 20K input impedance.

  • Individually-mounted, high quality RCA input and output jacks.

  • Tube complement: (4) ECC81 / 12AT7;  (1) GZ34 / 5AR4 rectifier.  Clear gray acrylic tube shields.

  • Heavy, one-eighth inch and .090 black hard-anodized aluminum panel construction, with solid, dark oak side panels.

  • Overall Size:  17 1/2 W x 7 1/2 H x 13 1/2 D inches.  Allow two inches above unit for heat dissipation.

  • Vibration isolation feet.

  • Net Weight:  15 lbs.  Shipping Weight:  25 lbs.


  • For 120 Volts AC.  Detachable power cable.

  • Designed and assembled in the United States using U.S. and Global components.




Wright Audio LT-6P Preamplifier Back



Shipping $95



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