Audio Research - I/50 - Vacuum Tube Integrated Amplifier w/Remote - Silver

The Audio Research I/50 is a high-performance vacuum tube integrated amplifier that brings the company’s renowned tube engineering into a modern, approachable design. Delivering 50 watts per channel, the I/50 uses matched 6550WE output tubes and 6922 input/driver tubes to provide the musicality, dimensionality, and refinement associated with Audio Research amplification.

The I/50 combines traditional Audio Research engineering with modern usability, including the distinctive LexieTube display, front-panel headphone output, balanced and single-ended connectivity, dedicated 4-ohm and 8-ohm speaker taps, and an included metal remote control. Its modular architecture also allows compatible optional phono and DAC modules to be installed, providing a path for expanding the amplifier’s capabilities.

Built in the USA and finished with a durable Cerakote chassis treatment, the I/50 combines classic vacuum-tube architecture with a distinctive contemporary appearance. Its compact integrated design makes it an excellent centerpiece for a high-performance two-channel system without requiring separate preamplifier and power amplifier components.

FEATURES:

• Vacuum tube integrated amplifier designed and built by Audio Research
• Push-pull 6550WE output stage
• Audio Research LexieTube front-panel display
• Balanced and single-ended analog connectivity
• Dedicated 4-ohm and 8-ohm loudspeaker taps
• Front-panel headphone output
• Modular architecture supporting optional phono and DAC upgrades
• Durable Cerakote chassis finish
• Metal remote control

AUDIO PERFORMANCE:

• Power Output: 50 Watts Continuous Per Channel, 20Hz–20kHz
• Total Harmonic Distortion: Typically 1% at 1kHz at Rated Output
• THD at 1 Watt: Less Than 0.1%
• Frequency Response: 7Hz–30kHz
• Input Sensitivity: 1.25V RMS
• Balanced Input Impedance: 100k Ohms
• Single-Ended Input Impedance: 48k Ohms
• Speaker Output Taps: 4 Ohms / 8 Ohms

TUBE COMPLEMENT:

• Output Tubes: 4 x 6550WE (Two Matched Pairs)
• Input / Driver Tubes: 3 x 6922

CONNECTIVITY:

• Single-Ended Inputs: 3 x Stereo RCA Line Inputs
• Balanced Input: 1 x Stereo XLR
• Pass-Through: Supported
• Speaker Connections: 4-Ohm and 8-Ohm Transformer Output Taps
• Headphone Output: Front-Panel 1/4" Jack

OPTIONAL EXPANSION:

• Phono Module: Optional internal phono stage for compatible MM and high-output MC cartridges
• DAC Module: Optional internal digital-to-analog conversion module with high-resolution digital playback capabilities

PHYSICAL & ELECTRICAL SPECIFICATIONS:

• Dimensions (W x H x D): 16.5 x 7.25 x 13.5 in.
• Depth Including Posts: 14 in.
• Net Weight: 40 lbs.
• Power Consumption: 252 Watts at Rated Output
• Chassis Finish: Cerakote
• Display: LexieTube
• Remote: Metal Remote Control

CONDITION:

Excellent pre-owned condition with minimal signs of previous use. The amplifier is very clean and presents exceptionally well. Please review all photos carefully for the exact cosmetic condition and everything included.