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The new Wyred 4 Sound ST-500MKII is an upgrade to the original amp that received lots of great reviews. It uses the newest 125ASX ICE module along with the Wyred unique 3rd generation input stage. Improvements are in the upper midrange and high frequencies. The new amp also is in a much upgraded cosmetic package.
I have one black demo amp available for $1350.00. Like new in 10/10 shape.
The ST500 MKII is a 250 watts per channel stereo power amplifier that does 430 watts into 4 ohm loads. It is a nice step up sonically over the original.
In the first review of the original ST-500 they raved. John Potis of Positive feedback summed up with:<br>"I’ll just come to the point: in some ways the Wyred 4 Sound is a ground breaking accomplishment that’ll bring a new level of power and sophistication to a budget conscious listening audience that could only dream of such performance before."<br><br>"Because if it’s good music that is the goal here and you’re looking for a high-powered solid-state amplifier, the Wyred 4 Sound ST 500 comes too damned close to the best out there at a price way too reasonable to be ignored." John Potis
Read the entire review at: http://www.positive-feedback.com/Issue39/wyred4sound.htm
In the August 2008 Ultimate AV review David Vaughn sums up with:<br>In my time with this amp, I have been in audio heaven. When I review a product, I usually look forward to placing my own equipment back in my rack, but that wasn’t the case here. After I reinstalled my Anthem, I instantly missed the Wyred 4 Sound, and I immediately put it on my short list of upgradesit’s that good."
Read the entire review at:<br>http://ultimateavmag.com/amplifiers/808wyred/
Here is a user comment:
TO: Underwoodwally,"Got it yesterday and quite love it. Seldom does the performance match the hype but the ST500 does. It’s the first amp I’ve found that outperforms the Pass Aleph 30.thanks Walteraloha, Barry"
Wyred 4 Sound amps are manufactured by in California. They have a 5 year factory warranty. Wyred 4 Sound amplifiers are only sold Internet direct, and I work with the factory. What this means to you is that there are no dealer mark-ups, and therefore, these amps are being sold at about 1/2-1/3rd the price of competitive products with are all sold at substantially higher prices.The ST-500 MKII is a true dual mono design. The only common parts are the chassis itself and the power cord.
The ST-500 MKII uses the latest ASX series upgraded ICE based amp power modules that are better than what is used in products sold from companies like Bel Canto, Jeff Rowland and others. These amps also feature a 3rd generation custom buffered dual FET input stage designed by Bascom King. This very high quality input stage has an input impedance of 100k to work with both solid state and tube preamps.
Here is a user review:
Hi, got my SX-500’s Monday, hooked them up that night with my Cary SLP-03 balanced preamp (new also)<br>, let it play for one day, last night I sat down to listen and I was blown away these amps sound incredible,<br>more detail, more depth, greater dynamic range, I swear I good tell that Ray Charles (new sacd) was sitting<br>at his piano with his voice projecting from left to right instead of forward, big upgrade from my Krell 400xi intergrated. I bought these on Walter Liederman’s recommendation unheard and also since Dan Wright mentioned he liked the sound ( I have Dan’s new phono stage), paid full retail and have no regrets, cant wait to listen to vinyl tonight!!!!" JS
You will find all specifications listed below, but it is worth noting that these amps have a typical distortion level below 0.001% and a damping factor of 500 for tremendous bass control. Sonics are exceptional with superb low level resolution, exceptional transparency and tremendous bass detail and extension. There are a number of big name 250 watt ICE based amps that have received Class A reviews all over the world. Rest assured that the ST-500 MKII is as good as the best and better than most. See the technical info at the bottom of this ad.
All Wyred 4 Sound amps are Made in the USA (California) and come with a 5-year factory warranty.
Features are also below.
I also have the other amps in this line. The 460 watt per channel stereo amp is only $1995.00. It does 725 watts per channel into 4 ohms and is extremely similar to the far more expensive competition without the "Audio Jewelry" look and with better sonics with the newer ICE amps.
Read our AudiogoN #1 rated feedback and buy with confidence.
We accept Visa and MasterCard as well as money orders.
Call me at 770-667-5633 to discuss these ultra high value products.
GA, HI & CA residents add sales tax.
220-240 volt versions are available for export. International sales are handled by bank funds wire transfer only and only sent into countries without distributors.
ST-500 mkII Stereo Amplifier Specs
Typical THD+N 8Ω (10W out): 0.001%
Power Output 8Ω @ 0.2% THD+N: 245W
Power Output 8Ω @ 1.0% THD+N: 277W
Power Output 4Ω @ 0.2% THD+N: 430W
Power Output 4Ω @ 1.0% THD+N: 460W
Output Idle Noise (A Wt.): <125µV
Frequency Response 20Hz-20kHz (8Ω @ 10W): ± 0.1db
Lower Bandwidth: 1.5Hz all loads
Balanced Input Impedance: 100kΩ
Unbalanced Input Impedance: 100kΩ
Dynamic Range (A Wt.): 111db
Output Impedance: 0.018Ω
Min Load: 3Ω
Max Output Current: 30A
Idle Power Consumption: <28W
Standby Power Consumption: <0.5W
Utilizes latest generation ICEpower® audio technology
250wpc in 8Ω
430wpc in 4Ω
External selectable mains voltage 115/230VAC
Idle power consumption 28w
Over current protection
Sound optimized soft clip
Standard 12V DC Trigger
Machined and anodized aluminum front panel
Gold Plated unbalanced (RCA) input
Neutrix Balanced (XLR) input
3rd Generation fully balanced input stage with impedance of 92k
Covered by a 5 YEAR WARRANTY
Brands carried:<br>Acoustic Zen, April Music, Audio Space tube electronics, Audeze headphones, Bob Carver tube amps & loudspeakers, Burson electronics, Cambridge, Creek, DSPeaker room correction, Emerald Physics speakers, amps & DAC’s, Epos, Exogal DAC's & amplifiers, Gallo, Graham Slee, Jolida, LSA speakers, Lehmann phono stages, Marantz Reference, Music Hall, Ortofon cartridges, Peachtree Audio, Project, PS Audio, Quad, Scansonic speakers, Silverline Audio speakers, SOTA turntables, Spread Spectrum Technologies Ampzilla, Sumiko subwoofers & cartridges, TriangleArt turntables, Wireworld, Wyred 4 Sound, Wywires
Sales policies on the Underwood Hifi Inc. website at www.underwoodhifi.com