eXception Phono

The Oppo 105  For true music lovers, nothing equals the warmth, dynamic range and fidelity of vinyl records. Therefore, a critical component of every audiophile’s vinyl playback system is the phono preamp.

Due to the extremely small signal produced by a phono cartridge a good phono preamp is one of the most difficult pieces of audio equipment to produce. We’ve spent 10 years developing and refining our Exception Phono preamp to meet our standards of performance.

Words are inadequate to explain the Exception Phono. Like the rest of our equipment, you have to hear the Exception Phono to fully appreciate what it does.

Key Features

Each unit is hand built in the USA

A low noise level of -75dBu allows the quietest passages of your music to be heard

The low impedance output circuit is designed to drive your cables and isolates the output from the influence of the

next stage

All switches are easily accessible

Accommodates both high and low MC output cartridges

Stillpoint Circuit Board Isolators are utilized to mount the amplification board

“Nude” Vishay resistors are used throughout the signal path

Dual mono outboard power supply

Class A, actively loaded, shunt regulated tube RIAA section with passive RIAA

Servo controlled solid state MC section for low noise and large dynamic range without the sonic limitation of


On/Off power switch mounted on front panel of the outboard power supply

Heavy gauge steel enclosure to help isolate external electronic noise from nearby equipment


Inputs per Channel

Separate MM and MC inputs

MM/MC switch

MM impedance 47K Ohms

MC Single Ended RCA

Ground lug located on back panel

MC load impedance adjustable via RCA plugs located on back panel

Tube Complement

Two (2) 6C45P and Two (2) 6BZ7 vacuum tubes with high quality ceramic sockets


Ground binding post

Voltage 110/120V AC 60Hz

Optional factory installed 220V or 230/240V AC 50/60Hz

Standard 3 pin IEC power connector

ON/OFF power switch conveniently located on the front panel of the power supply

Separate linear regulators for each channel’s filaments, separate high voltage shunt regulators for each channel’s B+, separate +/- low voltage shunt regulators for each channel’s MC step up stages.

Detailed Specifications

Gain MM input 42dB

Gain MC input 72dB

Noise - 75dBu

Frequency response complies with the original RIAA curve within + or - 0.5 dB

RIAA curve is achieved using a passive filter

1% metal film resistors throughout

Polypropylene and polystyrene capacitors throughout the audio path

Other Features

"Made in the USA" using US and imported parts

Each unit is built by hand

Phono dimensions 16.25" W X 12.75" D X 4.5" H

Phono weight 12 lbs.

Power supply dimensions 8.5” W X 12.5 D X 5” H”

Power supply weight 10 lbs.

Five year limited warranty

Six months warranty on Vacuum Tubes