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See archive of old tech news articles here.

LOCO NEWS (Popular Locos, Some Flaws).

sticky Dream Speakers (January 2004)
As a result of the concept and cooperative efforts of Don Borden and Mike Davis, Tony’s sponsored a year-long scientific speaker testing program to determine the best speakers for DCC. Hundreds of speakers from dozens of manufacturers in all the popular round and oval sizes were tested.

sticky Ogden's Sound Tips (November 2003)
Ogden Lamont, an avid model railroader, SP expert and seasoned veteran of many Soundtraxx installations has developed ...

QSI High Bass Speakers Review (April 2008)
For now the High Bass Speakers seem to be the best you can get for locomotive speakers.

G Aristo and G/O Magnum Rev-Up, More Goodies and Performance (December 2007)
Now over 40 sound files and more performance features for Quantum "G/O" scale sound and power modules!

QSI Weighs In on HO Sunset 4-8-4 Sound Baffling (November 2007)
Fred Severson from QSI responds ...

Speed Calibrating a Quantum Magnum Decoder (November 2007)
Paul Turvill has done the speed calibration for a Magnum installation in his LGB Mogul.

Sound Problems with HO Sunset NP 4-8-4 (November 2007)
Within seconds of operating we knew there was a big problem with the onboard sound.

Review of Soundtraxx Micro-Tsunami (October 2007)
When I got the Micro-Tsunami to review, a little light went off!

Quantum Programmer: DCC Command Station and Great Speed Matching Tool! (October 2007)
As a command station it can be used for speed matching up to four locomotives simultaneously "on the fly".

Quantum Magnum LGB Steam Sound Installation (October 2007)
Quantum Magnum steam sound decoder installation an LGB Mogul.

QSI High Bass Speakers (August 2007)
Special speakers for HO scale sound applications that provide significantly more bass than their same diameter counterparts.

User Reviews QSI Aristo Sound and Power Decoder (August 2007)
Dave form California has taken the time to share his observations on the new G scale DC/DCC PnP sound and power decoder.

Quantum G Scale Sound Options (July 2007)
A preliminary listing of Quantum G scale sound options for the Aristocraft ...

Soundtraxx Micro Tsunami Announced (July 2007)
Soundtraxx has announded and is beginning to ship the Micro Tsunami.

New QSI EMD-1 Notching and Transition Explained (March 2007)
QSI explains the long awaited improvements for diesel motor sound effects.

New Software for ESU LokSound Released (January 2007)
ESU has recently upgraded their software for their line of V3.5 HO LokSound decoders.

Soundtraxx Releasing New LC Sound Decoders (October 2006)
Soundtraxx has announced the release of the new DSD-101LC series DCC Sound Decoders.

User Reviews SP Cab Forward with the QSI Chip Upgrade (September 2006)
Bob Liberman, an avid and very capable SP modeler, shares his impressions of the BLI Cab Forward with QSI Upgrade Chip.

Hints: Using the QSI Chip Upgrade (September 2006)
Don Fiehmann points out some of the many unpublished special
features of the QSI Upgrade Chip.

Digitrax Sound Decoder Preview (May 2006)
by Don Fiehmann

Available Sounds for Pricom Dream Player (May 2006)
Downloadable free and paid sound files.

Pricom Dream Player Review (May 2006)
Don Fiehmann's report.

More QSI Upgrade Options (May 2006)
QSI announced that there will be more options available for Upgrade users in addition to the the 53 already specified

Recording Locomotive Sounds (April 2006)
Sound recording of locomotive sounds for use in quantum sound systems.

Review: Quantum Upgrade Chip with BLI E7 and Hudson (April 2006)
By Larry Maier.

Review: Quantum Upgrade Chip with BLI E7 (April 2006)
By Don Fiehmann.

Quantum Upgrade Chip (March 2006)
Here is the latest info from QSI for their new upgrade chip with great features.

Soundtraxx Finally Delivers (November 2005)
After two years of agonizing development Soundtraxx has finally committed to begin releasing their Tsunami series next generation digital sound decoders.

Quantum Revolution (October 2005)
Here is the latest info from QSI for their new aftermarket decoder packed with great features.

Quantum Engineer DC Controller (October 2005)
The Quantum Engineer gives DC users many more sound options.

Using LEDs with Soundtraxx LC Decoders (October 2005)
This note covers a possible fix for the rear light LED leakage problem when using an LED for the rear light on some SoundTraxx LC decoders.

MRC Sound Decoder Review (September 2005)
Don Fiehmann reviews the MRC Brilliance...

LokSound DCC Decoders and Programmer Review (August 2005)
Don Fiehmann reviews the new LokSound ...

Preliminary Tsunami Review (July 2005)
Don Fiehmann reviews a pre-production Tsunami sound decoder ...

Tsunami Info and Pics (May 2004)
A sign of Soundtraxx's progress.

First Look at Upgraded MRC Sound Decoders (March 2004)
by Larry Maier.

Soundtraxx Tsunami Revealed (September 2003)
Although designed for DCC, the Tsunami will work at a slightly reduced functionality on DC.

MRC Sound Decoder - Sound Samples (August 2003)
Provided courtesy of MRC.

Preliminary Review of MRC Sound Decoder (July 2003)
by Larry Maier.

Installation Pictures of Soundtraxx DSD090 in Atlas HO S4 (May 2002)
by Jose Luis Duran.

Soundtraxx Sound Files (December 2001)
Hear what they sound like ...

Soundtraxx Heats Up with Atlas DCC (November 2001)
We have revised this Bulletin posted several days ago to optimize
performance of of the Atlas Commander and Generator and Soundtraxx Digital Sound Decoders when used together ...

Using Soundtraxx Decoders on DCC Systems with High Output Voltage (November 2001)
The NMRA specifications are somewhat vague as to the MAXIMUM allowable voltage on the railheads. Standard S9 states: "Full throttle ...

Soundtraxx PnP for Proto 2000 GP7, 9, 30 & SD60 (January 2001).

Tank Speaker (December 2000)

Tony's Oval Speaker (November 2000)

DSX Buffer Circuit (August 2000)
...

Installing a DSD150 in a Bachmann Spectrum 2-8-0, 4-8-2 (February 2000)
...

Soundtraxx News! (December 1999)
...

SoundTraxx Plug and Play DSD for the Bachmann 2-8-0. (February 1999)
...

SoundTraxx DSX Sound Only DCC Unit. (February 1999)
...

 
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