The IT-85 is a full linestage preamp and power amplifier in one chassis, and the linestage section has sufficient gain and a buffered output to be able to drive a subwoofer through the preamp out. The headphone section of the IT-85 is driven off the tube output stage and output transformer of the power amplifier section thus making it an ideal high performance pure tube headphone amplifier for headphone aficionados.
The IT-85 is designed to accommodate future upgrade — when you are ready to add a subwoofer, separate pre- or power amplifier, surround processor or headphones to your system, the IT-85’s many different output stage configurations can be easily and painlessly re-configured, often with just the flip of a switch.
FEATURES
- High power, capable of driving a wide range of loudspeakers
- Remote controlled volume and mute (custom remote wand), automatic mute on power up and down
- Pure tube active line stage, with buffered pre-out and regulated B+
- One pair of processor loop / direct amplifier inputs
- One pair of tape outputs
- Amplifier-driven headphone output, front panel selector switch (pre out mutes on headphone insertion)
- No-load automatic shutdown in headphone circuit
- Built-in upgrade path for precisely gain-matched horizontal biamping with VTL ST-85
- Extruded machined aluminum front panel in silver (standard) or black, and protective cage
- High quality VTL ST-85 power supply components and output and power transformers
- Easily accessible individual output tube bias measurement and adjustment points on top deck
- Angled-back chassis for easy access of inputs and outputs, sturdy quality structural fit and finish
- Detachable IEC power cord, high quality gold-plated VTL custom binding posts and RCA jacks
- All hand-built in the VTL California factory
SPECIFICATIONS
Vacuum Tube Complement: 4 x EL34, 4 x 12AT7, 2 x 12AU7
Output power: 60 Watts
20Hz – 20KHz <3% THD: Into 5Ω
Small signal frequency response: (<0.2% THD @ 1W), 0-60 kHz
Class of operation: Class AB1
Inputs: 5 pairs of single-ended RCA, Proc/Amp Input
Outputs: 1 pair 5-way binding posts, Pre Out, Tape Out, Headphone Out
Input sensitivity: Line in: 180mV, Amp in: 575mV
Input impedance: Line in: 20kΩ, Amp in: 135kΩ
Output impedance: Amp out: 1.55Ω, Headphone out: 16Ω, Preamp out: 400Ω
Load setting: Speakers: 5Ω, Headphones: 50-500Ω
Power consumption: Ide = 200W, Full Power=600W
Dimensions: (W x D x H) 15.75 x 11 x 7 inches, 40 x 28 x 17.75 cm
Weight: 55lbs (29.5Kg) fully packed