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QSI Solutions

QSI is a leader in premium sound & train control devices and has sold over one million sound systems world-wide.
QSI's Quantum systems are known for their realism, reliability, and ease of use.

QSIAristo-D - QSI PC PnP Diesel Snd Dcdr Multi-Mode
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This Quantum product is designed to plug into the Aristocraft motherboard common on most of their G gauge locomotives. Installation in diesels only takes about ten-minutes; a Quantum Aristo is the easiest way to convert an Aristocraft locomotive to full sound and speed control.
St. Aubin's Sale Price $149.99
QSIAristo-S - QSI PC PnP Steam Snd Dcdr Multi-Mode
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This Quantum product is designed to plug into the Aristocraft motherboard common on most of their G gauge locomotives. Installation in diesels only takes about ten-minutes; a Quantum Aristo is the easiest way to convert an Aristocraft locomotive to full sound and speed control.
St. Aubin's Sale Price $149.99
QSIBRO1003 - Quantum Engineer
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Add the simple QARC controller, called Quantum Engineer, to your existing Analog power pack as shown above. With Quantum Engineer, you can operate features that are otherwise available only in DCC plus features that are not yet available in DCC.
St. Aubin's Sale Price $52.99
QSICSC - Cable - Steam Cam
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Single plug cable that connects to a locomotive cam and plugs into the Quantum Aristo or Magnum decoders.
St. Aubin's Sale Price $4.99
QSIGWRCVR - QSI G-Wire RX Plug-In Air Wire
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Compatible with CVP Products AirWire™* wireless DC/DCC throttles.
St. Aubin's Sale Price $114.99
QSIMagAdptr - QSI Aristo to Mag Adptr
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An adaptor circuit board that plugs into an Aristo decoder to convert the Aristo to wired generic format with screw terminals. Adding the adaptor creates the Magnum configuration.
St. Aubin's Sale Price $21.99
QSIMagHarness - QSI Mag Speaker Harness
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St. Aubin's Sale Price $4.99
QSIQP - QSI PC Programmer/Downlaoder
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Interfaces between your PC and a program track, which allows downloading software and new future sounds directly from your PC and from the QSI website directly into an UPGRADED Quantum Sound System without disassembling your locomotive. Important note : QSI Programmer is not compatible with Windows 98 or earlier versions.
St. Aubin's Sale Price $89.99
QSISupercap - Capacitor Kit for QSI with TE
A SuperCap kit can be added to the Quantum G/O boards to improve operation with "Train Engineer" the conventional popular wireless Aristocraft DC control.
St. Aubin's Sale Price $17.99
QSITDHP2.25 - High Performance Speaker; 2.25 inch Ronud Frame
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HP225R Size (in): 2.25 Size (mm): 57 Resonant Freq (Hz): 450 Freq. Range (Hz) 0-20k Input Nom (W): 3 Input Max (W): 5 Depth (mm): 27.2
St. Aubin's Sale Price $12.99
QSITDHP2.50 - High Performance Speaker; 2.5 inch Ronud Frame
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HP250S Size (in): 2.50 Size (mm): 67 Resonant Freq (Hz): 210 Freq. Range (Hz): 0-20k Input Nom (W): 3 Input Max (W): 5 Depth (mm):29.0
St. Aubin's Sale Price $12.99
QSITDHP3.0 - High Performance Speaker; 3 inch Ronud Frame
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HP300S Size (in): 3.00 Size (mm): 78 Resonant Freq (Hz): 120 Freq. Range (Hz): 0-20kInput Nom (W): 5 Input Max (W): 8 Depth (mm): 44.0
St. Aubin's Sale Price $15.99
QSITDHP3.5 - High Performance Speaker; 3.5 inch Ronud Frame
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HP350S Size (in): 3.50 Size (mm): 92 Resonant Freq (Hz): 160 Freq. Range (Hz): 0-13k Input Nom (W): 6 Input Max (W): 10 Depth (mm): 42.0
St. Aubin's Sale Price $15.99