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The VTL TL-6.5 Signature performed brilliantly in my system, revealing dynamic contrasts both subtle and bold, holographic soundstaging, and solid, deep, tuneful bass. Its remote quickly controlled the TL-6.5 from any convenient listening position in my living room, and the preamp’s front-panel display is readable from 10′ away. The TL-6.5’s ergonomics are the best I’ve encountered for a preamplifier. Larry Greenhill-Stereophile
|Vacuum Tube Complement||2 x 12AU7|
|Inputs||3 pairs balanced/XLR or RCA single-ended, 5 pairs single-ended/RCA|
|Outputs||1 pair balanced out, 2 pairs single-ended RCA out, 2 pairs single-ended RCA buffered Tape Out|
|Remote control functions||Power, Source Select, Volume up/down, Mute, Fade, Balance Control, Phase Reverse|
|Gain||Balanced in and Balanced out: 19.2 dB, Single-ended in and Balanced out: 19.2 dB
Balanced in and Single-ended out: 13.2 dB, Single-ended in and Single-ended out: 13.2 dB
|Output impedance||25Ω, Max 150Ω @ 10Hz|
|Input impedance||50kΩ, 20kΩ min|
|Frequency Response +0 -1 dB||1Hz – 200kHz (20Hz – 100kHz +0–1dB into 600Ω with 900pF 20’ interconnect cable)|
|Maximum Output Voltage <1% THD||30V into 10kΩ or above (10Hz – 200kHz, +/-1dB) 10V into 600Ω|
|Channel separation||>100dB @ 1kHz (>80dB @ 20kHz)|
|Dimensions W x D x H||17.5 x 17.5 x 6 inches (44.5 x 44.5 x 15.3 cm)|
|Weight||48lbs (21.8Kg) unpacked, 55lbs (24.95Kg) fully packed|
Audio circuit features
Control and power supply features
User interface features
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.
Analog Audio of Minnesota offers world class stereo equipment to the Minneapolis/St. Paul and greater Minnesota area. Located in Maple Grove, Analog Audio of Minnesota provides a unique environment to audition home audio equipment and the latest record releases. Come visit us for all of your home audio and two channel stereo system needs.
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