Wyred 4 Sound STI-500 integrated amp, excellent
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For Sale
Apr 24, 2013 at 3:48 PM Thread Starter Post #1 of 2


100+ Head-Fier
Aug 14, 2010
Eastern US
For consideration for your big rig with speakers, or even for power-hungry headphones, a Wyred 4 Sound STI-500 integrated amplifier in excellent condition, with 250 warm, musical watts per channel.

You can find a number of enthusiastic reviews online. From the Positive Feedback review: “I found the Wyred 4 Sound STI-500 to be a wonderful reproducer of music. It offers superb soundstaging, terrifically tight and deep bass, and a lovely treble. …every recording had better bass than I have heard previously. …this amplifier doesn't draw any attention to itself with anything other than its exceptional sound. If Class D amps like the STI-500 are the future, then the future is going to be wonderful.”
From the Stereo Times review (Feb. 2010): “…fast transients and dynamics are rendered with startling realism. … I would be remiss in my responsibilities as a reviewer if I did not mention the spectacular vocal performance that the STI-500 elicits. …could only be equaled by a very good tube amplifier or a live performance. …The Wyred 4 Sound STI-500 is an extremely impressive integrated by any measure. In a well-tuned system it can provide a noise-free, detailed, dynamic, yet immediate musical performance that can only be equaled by amplifiers costing multiples of its price. …There are many highly regarded amplifiers at multiples of the STI-500’s price that are simply incapable of reaching its lofty performance level. …I know a great deal when I see one. I’m buying this STI-500 and it will be staying put in my reference system for the foreseeable future. It’s been my pleasure to see and evaluate this well-built USA-made product that not only competes with but actually outperforms both imported and domestic products in and above its price range.”
This amp has the latest internal firmware updates from W4S. The amp has immense power, extraordinary low-end control and definition, detail without edge, and a captivating sense of "you are there" musical presence. Cosmetically, the amp looks excellent – see the pics. There are a couple of extremely light, very fine marks on the top near the cooling vents, hard to see unless up close in bright light.
Comes with remote control, original box, power cord, and manual. Will be double-boxed for shipping.
I'm the second owner, bought from an Audiogon member with 100% positive feedback. These amps rarely come up for sale on the used market, and at the asking price you can save $700 off the new retail price of $1995 (which I haven't seen discounted). At the asking price, I will cover the PayPal fee.
US-48 sales only, and preference to members with a record of positive feedback. Please check my long record of 100% positive feedback on Audiogon, user name = jhold.

Apr 24, 2013 at 11:08 PM Post #2 of 2


100+ Head-Fier
May 16, 2012
I have one of these and it sounds great.  I have even used it to power my HE-6 and it is great for that also.  I think this is THE best bang for your buck in a high end amp.  Someone should get a good deal it looks like!
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