PRODUCTS

RON'S POWER SUPPLY BLOG:

A current trend in audio design is the use of very inexpensive wall-mounted power supplies often referred to as wall warts. They are typically switching power supplies (as opposed to a linear regulated supply) and therefore can be made very small and dirt cheap. Now there is nothing wrong with switching power supplies if done right, but wall warts aren't done right... in fact they basically suck!

Now quite a few of the products that use wall-warts are considered mid-fi by many, but an inferior power supply may be the only aspect of the design that is earning the piece such a low ranking. At Welborne Labs we believe that power supplies can contribute 40% or more of the sonic quality to an audio design. While many think of a power supply as being a possible source of noise, a poorly designed supply can also increase total harmonic distortion, squash transient information, such as dynamics and deep bass, and in general cast a vail over the music.

In actuality, there are many sleeping-giant products out there on the market that just need a little help in the power supply department in order to realize their true potential. The Logitech Squeezebox and Sonic Impact T-amp products are just a few of the very prominent examples. We've had so many customers ask us if our Squeezebox power supply upgrade can work with product X or product Y that we have dedicated this page to serving your needs.

DIGITAL AMPLIFIER POWER SUPPLY UPGRADES

NOW ON SALE - 20% OFF

Our Squeezebox Power Supply upgrade has been one of our top sellers for several years. During that time we know several of you have purchased this supply and converted it for use with your Sonic Impact amp. Well we have designed this power supply specifically for the Tripath-based and Class-D amplifiers. It includes an even Higher Current power transformer than the Squeezebox supply.

No doubt the new age of digital amps are one of the best bargains in audio today. In their stock form the sound is pretty amazing and we've heard heavily mod'd units that compete with amps costing thousands of dollars.

Of course as the old saying goes, "you get what you pay for." At a price of $75-$100, some corners have had to be cut and the cost savings typically come at the expense of the power supply, volume control and audio connectors. In our opinion power supplies contribute so much to the sonic character of audio equipment that it's really a no brainer an improvement here will have an impact.

Yeah, I know what you're saying.... "your power supply costs three times as much as the amp!" This is true but, while we doubt too many of you are using these amps for your main system, many of you do a lot of listening with bedroom systems, on your computer or in your office. Give our power supply a try, we're sure you won't be disappointed. In fact after hearing the improvement many of you just might start contemplating the need for new speakers in these systems.

Our upgrade design incorporates a tightly regulated linear power supply featuring low noise Schottky rectifier diodes, low noise, low drop-out voltage regulator chips, Ultra low impedance Nichicon capacitors and a high-current-low-noise-split-bobbin transformer. Our power supply measures less than 50 microvolts of ripple under full load resulting in very quiet operation with plenty of reserve current for good dynamics.

Additional benefits are obtained with the use of a ceramic fuse, Vishay/Dale 1% metal film resistors, Wima polypropylene bypass cap, and a new heavier gauge umbilical cable between the power supply and audio equipment. The aluminum chassis measures just: 4.25"W(108mm) x 7"D(178mm) x1.8"H(46mm) and is available in red, black or clear silver anodized finish. The AC power cord is NOT included and must be purchased separately.

Assembly is straight forward. This is one of our easier kits to build. All components must be soldered to the circuit board so there is very little point-to-point wiring. Once the circuit board is assembled the rear panel with umbilical connecter and IEC connector are soldered to the board via very short jumper wires. Then everything just slides right into the box. Following our detailed step-by-step instruction manual results in an assembly time of less than 2 hours. If you would like us to build the kit for you, just select the Factory Assembled version below.

Welborne Labs has provided power supply upgrades for the following digital amplifiers with very good results reported back to us from our customers: NUFORCE ICON2, TRENDS TA-10, TRENDS TA10.2, DAYTON DTA-1, SONIC IMPACT T-Amp, TOPPING TP10, TOPPING TP21, TOPPING TP30, HLLY T-AMP10, CITYSPOT 2020 T-AMP, POP PULSE 2024, POP PULSE T2070, KINGREX T-20.

Available Factory Assembled for $275 or Kit for $215.00.

NOW ON SALE - 20% OFF

Factory Assembled Power Supplies are warranted for 3 years.

OUR SONIC IMPACT POWER SUPPLY UPGRADE CUSTOMERS ALSO PURCHASED THESE PRODUCTS
#1 U.S. Version Power Cord
#2 EURO Power Cord
#3 WLabs 4' Power Cord Kit
#4 ELNA Cerafine Caps
For more details click above links

"Sweet! You guys came out with this supply just as I was contemplating an upgrade for my t-amp. I'm a novice solder-slinger and your excellent assembly manual made it easy." Cody - San Diego, CA

"Excellent parts quality and the aluminum enclosure adds a nice touch to the project. " Jon - Tulsa, OK

AC power cords are sold separately. We offer very good shielded power cords with molded ends at affordable prices or try one of our top-quality Welborne Labs Power Cables featuring Marinco plugs.

molded power cords

welborne labs power cords

You can also purchase our Sonic Impact power supply without the case. Click on the photo for more details of our PSX power supply.