Signature S-200 Stereo Amplifier
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Signature S-200 Stereo Amplifier
*This product is built to order. The estimated delivery time is 3 months.
VTL’s legendary Signature series has long been valued by music lovers who seek outstanding sound at a fair price. The new S-200 takes that proposition to a new level by including VTL’s latest technology in a space saving single chassis design. All the features and functionality of the renowned MB-450 and MB-185 Series III Signature monoblocks are built in, but in a package costing significantly less. With top quality parts, a fully balanced design, and innovative engineering, the S200 offers a listening experience unparalleled at this price.
This 200 watts/channel stereo amplifier is packed with technology VTL has spent years developing. A fully balanced differential input stage drives a differential phase splitter and a lower impedance push-pull output stage with a custom made, fully balanced, interleaved and coupled output transformer. Like its stable mates, the amplifier incorporates VTL’s SmartTube technology with automatic bias adjustment and fault sensing, making this amplifier especially welcome to music lovers who value ease of use. With the S-200, there’s no need to guess when or if a tube may need to be replaced.
To keep the output tube operating point constant and stabilize the critical power supplies, even under AC and main power supply fluctuations, the S-200 deploys adjustable precision-regulated bias and screen supplies, yielding tonal stability and sonic integrity especially during complex, dynamic signal conditions.
The S-200 also features a user adjustable Damping Factor feedback control that allows the user to adjust the amplifier’s output impedance by varying the amount of negative feedback. Impedance can now be precisely set to suit the listener’s taste, and to improve control of the loudspeaker loads to deliver best performance.
The 3 possible settings are:
- LOW – Lowest damping factor, good loudspeaker control, most natural sound.
- MED – Better loudspeaker control, with some impact on sound quality
- HI – Best loudspeaker control, with a little more impact on sound quality, but on speakers that need the control the sonic improvement is clear
- Fully balanced differential circuit – even single-ended signal produces balanced signal at output
- Fully balanced differential input and driver stages for increased signal swing, bandwidth and stability
- Zero global Negative Feedback
- Shorter, faster feedback loop for greater tonal control without phase shift
- Superior handling of loudspeaker loads for greater signal stability
- The amplifier is unconditionally stable, without the need for capacitor compensation
- Tube-like JFET type current source maintains sonic integrity in single-ended mode
- Lower impedance output stage for improved loudspeaker control
- Proprietary designed interleaving and coupling in the balanced VTL Signature output transformer, for wider bandwidth and zero ringing
- Variable user-adjustable DF feedback control to vary output impedance and damping factor for optimal matching to speaker load
- Software microprocessor controlled
- Tetrode/Triode Switchable
- Auto Bias, Fault Sensing
- Current in-rush limiting
- Standby Mute function; with reduced tube current for increased tube life
- 200 watts per channel in tetrode; 100 watts per channel in triode
- Uses eight 6550 or KT-88 tubes
- Adjustable regulated screen supply for stable operating point; discrete regulated input and driver supply for greater signal resolution and tonality
- Adjustable precision-regulated bias supply for greater signal resolution and noise rejection and improved isolation from mains supply variations; output operating point does not change with AC power fluctuations
- Autobias and fault sensing system to operate in fully balanced differential mode; amplifier is fully protected against output tube failure; no need for precision matching of output tubes
- Film bypass of power supply caps for greater HF resolution
- Extruded aluminum front panel with luxurious, modern look – black and silver options available
- Rack mountable
- Rigid construction and improved ventilation for lower operating temperature
|Vacuum Tube Complement||8 x 6550 or KT-88, 2 x 12AT7, 2 x 12BH7|
20Hz – 20kHz <2.5% THD
|Tetrode: 200W, Triode: 100W
into 5Ω load
|Input sensitivity||Variable between 700mV and 1.6V, depending upon DF setting|
|Optimum load range||4Ω – 8Ω|
|S/N Ratio||-110dB, 120 Hz|
|Power consumption||Idle = 330W, Full power = 1000W|
|Primary mains fuse ratings||100/120V = 15A Ceramic Slo Blo, 220/240V = 8A Ceramic Slo Blo|
|Input fuse ratings||100/120V = 1A Ceramic Slo Blo, 220/240V = 1A Ceramic Slo Blo|
|Logic fuse||100/120V = 1A Ceramic Slo Blo, 220/240V = 1A Ceramic Slo Blo|
|B+ fuse ratings||Plate Fuse – 1.0A fast acting 600V|
|Dimensions W x D x H||18.5 x 18 x 9 inches (47 x 45.7 x 23 cm)|
|Weight||105lbs (47.6Kg) unpacked, 120lbs (54Kg) packed|
“It (TL6.5 II) has added serious low-frequency extension and grip to the mix, moving it far closer to the flagship 7.5 in overall performance.”
“The S-200’s neat trick is to deliver a realistic impression of weight and scale, pitch and extension.”
“The VTLs performance matches what is an expressive and dynamic tour de force. Repin and Argerich … their playing is at once intimately conjoined and dramatically bold. The VTLs paint a richly vivid musical picture, full of body and presence, light and shade. The instruments are held separate in space, with a beautifully natural sense of differential height and scale, surrounded by a convincing acoustic space. The connection between the musicians is as tangible and articulate as the interlocking phrases of the piece, sure sign that the amps have got the timing spot on.”
“Spending time with these VTL amplifiers, it is easy to understand how and why the company has quietly but confidently established itself as the go-to option for versatile, high-powered tube amps. The TL-6.5 and S-200 don’t just tick the boxes – they own this turf!”
“Setting the [DF] switch to Low produced one of those jaw-dropping moments, where a sound that I’d already thought was excellent became even better.”
“Amply fulfilling VTL’s mission to make tubes user-friendly, this well thought-out design brings all the benefits of glowing ‘bottles’ with hardly any of the headaches. As for the sound itself, it would be true to say that the VTL gave fresh insights to everything played, but that wouldn’t convey what this amplifier does. Simply, the S-200 offers endlessly absorbing, effortless musical enjoyment. Warmly recommended.”
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