- Acoustical Systems
- Artesania Audio
- Sonus faber
- Spiral Groove
- Wilson Audio
- Om Stylus
TL-7.5 Series II Reference
Recent engineering breakthroughs have resulted in a major upgrade to one of VTL’s most important products – the TL-7.5 Reference Line Preamplifier. Four years after introducing the TL-7.5 to universal acclaim, VTL has revised it for an even higher level of performance. The new design, known as the TL-7.5 Series II, adapts current gain technology developed for the new TP-6.5 Signature Phono Stage. The upgrade results in a lower overall gain (20dB-balanced, 14dB single ended), as well as a dramatically lower noise floor. Luke Manley, President of VTL, credits the improvements to intensive ongoing R&D at the company. “While working on the forthcoming TP-6.5 phono stage, we developed a high current circuit to resolve with very low background noise the small distances that a phono cartridge travels, and we have applied this thinking to the TL-7.5 Series II.” The new circuit delivers even wider frequency response as well as superior musicality and transparency, while maintaining the neutrality that the TL-7.5 Reference Line Stage is famous for. Also included in the upgrade are new parts selected to enhance the resolution with even more speed and presence in the critical top end and midrange. For increased compatibility with modern home theater systems, the Series II adds a fully bi-directional RS-232 control.
The original thinking behind the design of the TL7.5 came from VTL’s goal of creating a preamplifier with the very finest resolving power. To this end, VTL engineers decided on a dual-chassis design. One unit contains the multiple regulated power supplies and audio switching controls, while the other carries only the amplified audio signal, uncontaminated by AC line or control microprocessor noise. This “clean box/dirty box” approach, the balanced mode of operation, and the ultra high resolution volume control all ensure an audio signal of utmost purity, unaffected by external influences. Also fundamental to the design is its hybrid tube/solid state circuitry. A pair of 12AU7 tubes provides harmonic opulence in the gain stage while a MOSFET output stage offers high current capability with ultra-low impedance for optimal matching with any amps and interconnects. The result is a component with striking clarity and detail that presents instrumental timbres and textures in an amazingly lifelike way. You’ll find the most elusive qualities of your recordings–spatial size and organization, instrumental separation, and low-level sound decay–newly revealed, exposing previously obscured detail for a more realistic and satisfying musical experience. The Series II pushes the boundaries of what is possible even further, offering a compelling improvement in bass definition, harmonic accuracy, and the ability to identify tonal differences in instruments. The new TL7.5 Series II is unquestionably another significant step along the path to ultimate musical truth.
- Hybrid tube/solid state design—the musicality of tubes with the power to drive any load with any length interconnect
- Fully differential circuits for all-the-way-through balanced operation for superior noise rejection
- 12 fully regulated power supplies to preserve tonal and spatial accuracy
- A simple, short and direct signal path using the highest quality audio parts delivers greater emotional connection with your music
- Programmable switching and triggering functions offer ultimate flexibility for home theater audio management
|Feature Summary of the TL-7.5 Series II Reference Line Preamplifier