Vinnie Rossi LIO Modular Audio System

One Box, Many Options

Equipment report
Solid-state power amplifiers,
Digital-to-analog converters
Vinnie Rossi LIO
Vinnie Rossi LIO Modular Audio System

The history of audio is populated with manufacturers who have offered solutions for the problem of too many separate components in the audio signal chain. Vinnie Rossi’s LIO is different because its modular design allows for and anticipates technological change. The LIO’s ability to become almost any combination of components makes it unique. Also, by merely placing the needed modules into the LIO’s chassis, an owner can easily convert the unit from one function to another.

Sonically I found the LIO to be a highly transparent and extremely low-noise component that allowed the music to pass through it unscathed. While I can’t discern what percentage of this can be attributed to the LIO’s ultracapacitor power supply as opposed to its autoformer volume control, I do know that the final result was as clean, clear, and uncolored as any component I’ve heard.

If you need to downsize or have an environment that will not tolerate a multiplicity of boxes scattered about, the LIO is a clever way to save space while retaining superb sound quality and upgradeability. Also for anyone who is assembling a compact yet versatile, computer-sourced, nearfield monitoring system, the LIO is an attractive option. Finally, for those unfortunates whose AC power is as impaired as mine, the LIO offers an elegant way to eliminate your power’s pernicious effects. Yes, Vinnie Rossi’s LIO solves a lot of problems elegantly with one simple box.


DAC module
Output voltage: 2V RMS
Output impedance: < 100 ohms
SNR: > 100dB
Playback bit rates accepted: (PCM) 16, 24, 32
Playback sample rates:  (PCM) 44.1, 48, 88.2, 96, 176.4, 192, 352.8, and 384kHz  (DSD) DSD64, DSD128 via DoP

Power amplifier module
Output stage: Class AB MOSFET
Power output: 25Wpc into 8 ohms, 45Wpc into 4 ohms, 65Wpc into 2 ohms

Phonostage module
Gain/Load (mm): 40dB/47k
Gain/Load (mc): 60dB/16 load settings from 26 to 400 ohms
Output impedance: < 100 ohms
RIAA: Passive filter between two discrete, Class A JFET gain stages
Voltage gain stages: Class A JFET, no feedback.

Tubestage module
Included tubes: JJ E88CC (matched pair)
Accepted tubes: 6922/E88CC, 6DJ8/ECC88, 7308/E188CC, 7DJ8/PCC88, 6N23, 6H23, 6N11, and 6GM8
Output impedance: < 200 ohm
Frequency response: 10Hz–110kHz (+/-0.5dB)
Gain: Unity (0dB)

800 Main Street, Suite 125
Holden, MA 01520
(774) 234-0800