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Wyred 4 Sound SX-500

High-end 500wpc monoblock power amplifier

Copy TBA. 

“The STI 1000 integrated amplifier promises quality line-stage functionality with an unreasonably high level of output power in a compact and lightweight package. In the course of the listening sessions, the ST Integrated proved capable of revealing large amounts of information. There was a wonderful delicacy which goes against preconceptions about high power. The amplifier was surprisingly fast on its feet, exhibiting none of the sluggishness that many would associate with such massive horsepower. It handled complex dynamic passages easily. Macro bombast and fine micro detailing were convincingly portrayed.

High frequencies were extended and sweet when the system was fully adjusted. No harshness or grain were ever in evidence that could be attributed to the electronics. Midrange was dimensional and highly detailed. Vocal material had enunciation without becoming clinical and could achieve a richness of detail and presentation similar to that of tubed units. There was an aliveness that could convey emotional nuance. Bass character was natural. It exhibited substantial power and control but was also very revealing of rich instrumental texture.

From a technical standpoint, the STI 1000 amplifier offers a vast amount of low distortion power in a small package. It is exceptionally efficient. From a sonic standpoint, it has the potential to deliver uniform dynamics over a wide volume range. This is something the best amps aim for and something digital amplification appears to do rather well. Dimensionality and soundstaging can rival tube technology. Resolution and accuracy of response can challenge the upper tiers of audiophile product.

Richness is not a description you would expect of a non-valve design but it is achievable with the STI 1000. Driven direct from the CD player or through the preamp stage, the amplifier was capable of lifelike palpable images in a well-defined acoustic space offering as much dryness or warmth as was captured on the recording.

By any realistic definition, the STI 1000 is a bargain.  The preamp will appeal to those looking for the “straight wire with gain” approach. It will not create warmth but convey it.  The line stage alone would probably warrant the price of admission. The amplifier has virtually unlimited power and a high pedigree.

For years, serious hifi has traditionally meant separates. Wyred4Sound has challenged that preconception with a no-compromise single box solution which gives little ground to any separate dynamic duo (and made this proposition temptingly affordable). This is a serious effort and in the right system the STI 1000 will perform with a vengeance that belies its size. Powerful, efficient, musical - separation anxiety? Perhaps it’s time the masses embraced integration. Easily recommended . . .” – 6Moons review (November 2009)


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UK delivery: £14.50
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Wyred4Sound STi1000 Amplifier
Wyred 4 Sound 500W Class D amp
Wyred 4 Sound STi1000 integrated amplifier internal

Available in black or silver: please specify when ordering

• Dual modified ICE 500 power modules
• Distortion: THD+N (10W out): 0.008%
• Crosstalk (20Hz-20kHz): > 85db
• 8Ω power per channel (0.2%): 570w
• 4Ω power per channel (0.2%): 1.14 Kw
• Frequency response (20Hz-20kHz) / 2v): ±0.4db
• Lower bandwidth: 3.3Hz all loads
• IMD: 0.0005%
• Idle power consumption: 35w
• Efficiency: 78% (4Ω)
• 60kΩ input impedance
• Sensitivity: 0.75 V RMS
• Vacuum Fluorescent Display (VFD)
• Optical rotary encoder (volume knob / power button)
• Fully functional remote control
• 12V DC Trigger input (to automatically activate HT Bypass mode)
• 12V DC Trigger output
• Home Theater bypass (customizable for any input, also DC Trigger input selected)
• Balance control
• Absolute phase control (0°/180°)
• Extremely low noise floor
• True Resistive-Ladder volume control
• Unbalanced to Balanced conversion (when RCA inputs are selected)
• 12mm machined and anodized front panels
• 4 sets of gold plated unbalanced (RCA) inputs
• 1 set of gold plated unbalanced (RCA) outputs
• 1 set of Neutrik Balanced (XLR) inputs
• 230V AC (comes with UK 3-pin / IEC lead unless otherwise specified)
• Size: (17”W x 4”H x 14.5”D)
• Weight: 9.5kg
• Three year warranty

* Shipping to the following countries is calculated at the standard EU rate of €30: Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Republic of Ireland, Italy, Luxembourg, Netherlands, Poland, Portugal, Slovenia, Spain and Sweden.

* Shipping to the following countries geographically within Europe but remote from the UK is calculated at the Worldwide rate of £48: Bosnia, Croatia, Greece, Iceland, Latvia, Lithuania, Lichtenstein, Montenegro, Norway, Romania, Serbia and Switzerland.


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