VTL Power Amplifiers and Monoblocks

VTL Power Amplifiers and monoblocks are available for demo and purchase at our expansive showroom. For more information or questions, call the shop at (619) 223-8151

Amplifiers > VTL

VTL ST-85 Stereo Amplifier

This compact Stereo amplifier, using 4 EL34 tubes, delivers a solid 60 watts per channel and offers a full measure of the “VTL sound,” but at a real world price. Using the classic workhorse tube that was the foundation of the VTL sound, the EL34 models are studies in compact chassis with short signal paths. These rugged amplifiers are capable of delivering an exceptionally large sweet sound space from any satellite, mini-monitor or small floor-standing system. Listen to what one critic called “the weight of the brass, especially the trombones, is sensational”, and “… made me aware of just how good these units are at portraying those subtleties in music reproduction that matter to audiophile music lovers.” We accomplished this seemingly contradictory goal through careful engineering… An audiophile “best buy.”

VTL ST-150 Stereo Amplifier

Over 150 watts per channel (300 watts of stereo power), this stereo amplifier offers superb musical clarity and plenty of power in one compact chassis. Utilizing the finest quality parts, and entirely hand built by experienced craftsmen, the ST-150 is VTL’s offering of a high value, high power stereo tube amplifier. The noted VTL quick, clean, musical sound and exceptional bass punch is delivered here by the 6550 tubes. Exceptionally well suited to triode operation, yet they are also very dynamic and fast in tetrode mode, these VTL amplifiers are well-suited to smaller electrostatic panels and dynamic speakers not requiring high current. For commanding performances on the midrange and clarity on the top, VTL wins hands down. In triode mode, the amp is best suited to speakers with an efficiency of 92dB/1W/1m or higher.

VTL S-200 Stereo Amplifier

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.

VTL S-400 Series II Reference Stereo Amplifier

Since its introduction in 2004, VTL’s S-400 Stereo Reference amplifier has been valued by music lovers around the world as a high power, high performance tube amplifier–renowned for its ease of use and refined, natural depiction of music. The new Series II version of the S-400 uses the same circuitry as its bigger brother, the Siegfried Series II Reference monoblock amplifier, in an impressive single chassis design. The inclusion of VTL’s latest engineering advances brings the renowned sonic performance of the S-400 to even greater heights.

For the Series II, VTL, has completely re-worked the entire signal path. Upgrades include a fully balanced differential input stage driving a differential phase splitter and a lower impedance push-pull output stage with a dramatically improved, fully balanced and enhanced interleaved and coupled output transformer. Equipped with the same “SmartTube” technology as the Siegfried II, the S-400 deploys Auto Bias and Fault Sensing, precision-regulated power supply technology, and bi-directional RS-232 control, giving unparalleled flexibility and ease of use.

MB-125 Monoblock

Years of refinement have produced an amplifier of unparalleled clarity and musicality at its price. These space efficient monoblocks, sold in single monoblocks or in pairs, are an excellent choice for the two-channel as well as home theater systems. Using EL34 tubes that are known for their sweet top end and rich midrange, these monoblocks are best suited for planar and electrostatic speakers as well as highly efficient floor standing dynamic speakers.

MB-185 Series III Monoblock

Following the footstep of the MB-450 Series III, the MB-185 Series III Signature monoblock has gone through the same technological improvements as its bigger brother. The upgrade to the Series III platform is extensive with a complete rework of the signal path and new features added while retaining all the user friendliness of the previous model such as automatic tube biasing and comprehensive fault sensing.

Upgrades include a fully balanced differential input stage driving a differential phase splitter and a lower impedance push-pull output stage. Also new is a shorter, faster and fully balanced negative feedback loop, with zero global negative feedback. The negative feedback loop completely eliminates ringing and requires no capacitor compensation to maintain critical phase integrity and information. The result is an amplifier that remains stable even under the most demanding loads.

MB-450 Series III Monoblock

Music lovers have long admired the VTL MB-450 Signature monoblock amplifier for outstanding performance at a fair value. The new Series III version of the long-standing MB-450 platform features a complete re-working of the entire signal path. Upgrades include a fully balanced differential input stage driving a differential phase splitter and a lower impedance push-pull output stage with a dramatically improved, fully balanced and enhanced interleaved and coupled output transformer. VTL’s innovative engineering brings the legendary sonic performance of the venerable 450 Signature platform to even greater heights.

The new MB-450 Signature monoblocks gain further sonic benefits with a shorter, faster and fully balanced negative feedback loop, with zero global negative feedback. The negative feedback loop completely eliminates ringing and requires no capacitor compensation to maintain critical phase integrity and information. The result is an amplifier that remains stable even under the most demanding loads.

Siegfried Series II Reference Monoblock

Since its introduction in 2003, VTL’s Siegfried Reference monoblock amplifier has been recognized as the leader in the world of high power, high performance amplifiers, both for ease of use and musicality. Known as the first tube amplifier to deploy true Auto Bias and Fault Sensing, as well as precision-regulated power supply technology, the Siegfried amplifiers have won the loyalty and appreciation of serious music lovers around the world.

The new Series II version of the renowned Siegfried platform features a complete re-working of the entire signal path. Upgrades include a fully balanced differential input stage driving a differential phase splitter and a lower impedance push-pull output stage with a dramatically improved, fully balanced and enhanced interleaved and coupled output transformer. VTL’s engineering brings the renowned sonic performance of the innovative Siegfried Reference platform to even greater heights.