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VTL is one of the most dependable brand names when it comes to high-end audio systems. For years the brand has been recognized by audiophiles throughout the world as equipment that delivers clear and consistent quality in music.
What else to know about the TL-6.5 Series I & II?
More than seven years after introducing the TL6.5 Signature Preamplifier to wide acclaim, VTL presents a significantly revised version, the TL6.5 Series II. The new model incorporates numerous circuit improvements while retaining the best elements of the TL6.5 platform. The proven strengths of the original system design include a single chassis architecture, a fully balanced differential design, a hybrid circuit that combines tubes in the gain stage for voltage linearity, with a FET buffer for greater current capacity, a high resolution volume control with high overload capability, and precision-regulated power supplies. The highly-regarded user interface of the TL6.5 platform is renowned for its intuitive functionality and ease of use, with full-function remote control, and a fully bi-directional RS-232 control interface for increased compatibility with modern home theater systems. The TL-6.5 Series II incorporates most of the advanced technology found in VTL’s flagship preamplifier, the TL-7.5 Series III, for a dramatically higher level of performance compared to the original design. The new version features an extensively revised power supply based on current-sourced shunt regulator technology that minimizes impact on the audio signal. Far more precise power regulation yields dramatically improved rejection of noise and AC fluctuation. The completely redesigned high current gain stage utilizes newly available FET technology developed for green technologies such as solar panels and electric cars that require a normally-on state. Unlike MOSFETs that need to be biased on, normally-on devices operate more like vacuum tubes in the audio output stage, with simpler circuits that continuously conduct current, resulting in a more tube-like sound. The high-current gain stage is shock-mounted like the TL-7.5, and has been further optimized for linearity, with zero global negative feedback. Also included in the upgrade are re-voiced audiophile grade capacitors and additional bypassing. Enhancements to the Series II result in an overall more tube-like sonic character, with more defined images in the listening space, a higher level of inner detail, and a dramatically improved mid-bass and midrange. The TL6.5 Series II is an exceptional match with any of VTL’s other Signature products. **Functionality Features** **Audio circuit features** * Fully balanced differential circuit with balanced in and out, and mirror-image layout * Simple 2-stage circuit topology with differential gain stage and output buffers for musical purity and integrity * Ultra low impedance output stage to drive any length of cable and any power amplifier/paralleled amplifier/subwoofer load * 20 microfarad output capacitors for powerful bass control * Tube complement: 2 x 12AU7/ECC82 tubes * Gain switching between normal gain and low gain with 6dB gain reduction * Single fully balanced differential 95-step 70dB discrete resistor relay attenuator for all attenuation functions **Control and power supply features** * Precision regulation * Ramped B+ filament soft-start power up for extended tube life * Huge energy storage power supply for elimination of AC fluctuation and noise rejection * Low noise processor control design for all functions **User interface features** * Processor loop – any of 8 inputs can be assigned as fixed unity gain pass through * Tape monitor function for both tape loops * 2 separately programmable trigger outputs * Bi-directional RS-232 interface * Programmable input offsets * Rigid Combination steel and non-magnetic chassis and machined aluminum remote wand **Additional features** * New FET device output stage for more tube-like sound and simpler bias circuit * Improved current source for improved musicality and better single-ended operation * Zero Global NFB for vastly improved faster dynamic and tonal resolution, and unconditionally stable circuit, without any phase shift. * All audiophile grade capacitors in signal path with bypass system for improved HF resolution * Vastly improved lower impact and greater precision-regulated current-sourced shunt power supply * Teflon power supply bypass caps for improved top end * Microphonically damped tube gain stage for greater vibration noise eliminationBrief History of VTL
Other VTL Products We Often Buy
Typically, StereoBuyers purchases mostly used amplifiers, especially the vintage amps and high-end VTL models.
StereoBuyers has purchased tens of thousands worth VTL brand equipment since 2014, with individual buys ranging from $100 to well over $50,000. If you are moving, ready to upgrade, or have VTL equipment you do not or will not be using, why not contact us today to find out if it is worth good money?
If you are interested in selling your used VTL equipment to us in the greater NYC area or Colorado, please click here to fill out a Free Quote Form and we will get back to you. If we agree on terms, we come to meet you where you want, and pay cash.
The following images show actual VTL equipment purchased by StereoBuyers.
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VTL Deluxe 225
Power Amplifier -
VTL Deluxe 225
Power Amplifier -
VTL IT-85
Integrated Amplifier -
VTL MB-300
Monoblock Power Amplifier -
VTL MB-450 Series III BAL
Monoblock Power Amplifier -
VTL MB-450 Series III BAL
Monoblock Power Amplifier -
VTL ST-150
Power Amplifier -
VTL TL-5.5 Series I & II
Preamplifier -
VTL TL-6.5 Series I & II
Preamplifier