VTL TL7.5 Series III

Audio unit 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
• 30 microfarad output capacitors for vastly improved bass control
• Tube complement: 2 – 12AU7 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, using low signal instrumentation ruthenium relays for greatest resolution
• Microphonically damped tube gain stage for greater vibration noise elimination

Control power supply unit features

• 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
• 4 separately programmable trigger outputs
• Bi-directional RS-232 interface
• Programmable input offsets
• Selectable padded inputs

• Rigid Combination steel and non-magnetic chassis and machined aluminum remote wand
• Factory upgradeable from Series I and Series II