FS: Wyred 4 Sound ST-500 Class D amplifier
billbillw
Posts: 7,799
I may regret this, but I've decided to sell my ST-500 amp. $500+ shipping for established Polkies. I don't have the original box, but the seller I got it from back in 2021 created a bomb-proof double box setup with a mix of rigid and soft foam. I trust it with United Parcel Smashers.
This uses a pair of robust ICEPower modules and Wyred's Dual FET input buffer to make a very nice sounding 250wpc into 8ohms and 550wpc into 4ohms. This drove my Sony SS-M9 and my Revel F208 to concert type levels without ever breaking a sweat. It is barely warm to the touch after hours of playing. If you have been curious what Class-D is capable of, this is a relatively inexpensive road to effortless power. This is the same version that was tested by 6moons here: https://6moons.com/audioreviews/wyred5/st500.html
Note: this is a fully differential amp design, so it will not work with SDA speakers unless you have a Dreadnought style isolation transformer. Local meetup in Atlanta Metro is always welcome.
The amp appears flawless to me, but I'd give it a conservative 8/10 on the A-gon scale due to age and the fact that three screws are Philips head and don't match the other 24 hex screws.
Photos taken with flash to show any flaws.
I will also be listing this on local marketplace and US Audiomart this weekend for a bit more money.
This uses a pair of robust ICEPower modules and Wyred's Dual FET input buffer to make a very nice sounding 250wpc into 8ohms and 550wpc into 4ohms. This drove my Sony SS-M9 and my Revel F208 to concert type levels without ever breaking a sweat. It is barely warm to the touch after hours of playing. If you have been curious what Class-D is capable of, this is a relatively inexpensive road to effortless power. This is the same version that was tested by 6moons here: https://6moons.com/audioreviews/wyred5/st500.html
Note: this is a fully differential amp design, so it will not work with SDA speakers unless you have a Dreadnought style isolation transformer. Local meetup in Atlanta Metro is always welcome.
The amp appears flawless to me, but I'd give it a conservative 8/10 on the A-gon scale due to age and the fact that three screws are Philips head and don't match the other 24 hex screws.
Photos taken with flash to show any flaws.
I will also be listing this on local marketplace and US Audiomart this weekend for a bit more money.
Comments
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Great Price, Great Amp, Great Company W4S.
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That's a good amount of power for the price! GLWTS2ch rig: Speakers: Magnepan LRS w/Magna Riser stands Preamplifier: Parasound P5 Amplifier: Parasound A23 CDP: Pioneer DV-563A Cables: Wireworld Equinox 7 XLR ICs, Wireworld Ultraviolet 7 USB, AudioQuest Q2s, AudioQuest NRG X(preamp)
Standby: LSi9s with VR3's Fortress mods -
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I am interested. Will pm you.
