C318 - Hybrid Preamplifier w/ User Adjustable Sound Profile

If you like to have fun while listening to your music, hearing it presented in different ways such as tube rolling, or sampling different components, the C318 is an audiophile playground. 5 separate ways to suit your every mood, genre, or room, this preamplifier creates synergy or just plain fun. The multilayered and multicolored acrylic faceplate and aluminum knobs entrance you in the same way the sound will. 

Each C318 preamplifier is custom built to order by Angela - Gilbert Yeung with point to point wiring for the best connection and clearest transmission of signal. The power supply and various internal components utilize 14ga solid core copper for unimpeded current and signal flow that you will find in no other preamplifier. Also characteristic of all Gilbert Yeung designs, the C318 and associated power supply is thoughtfully braced and dampened throughout with the artful application of silicone, no need for further isolation products as every detail has been considered including the resonance of the chassis panels. Learn More

Features

The C318 features 5 separate ways to adjust the sound including two separate tubes, solid state, and a paper in oil capacitor circuit. The 6SN7 tube, 6922 tube, Solid State, and Warm controls are all user selectable attenuators to fine tune how much, or how little of each sound effect you want in the signal path. Each knob is also an associated gain stage, so they will need to be used in tandem, but this allows you to zone in to your musical preferences while matching the gain of any source or output, making this a very versatile preamplifier that will synergistically fit into any system. With all of these adjustments the C318 is countless preamplifiers in one. 

There are 3 single ended inputs and two SE/BAL combo inputs for a total of 5 inputs, all selectable via the front mechanical switch. 

The power supply is separate in all Gilbert Yeung preamplifiers to keep all AC components and associated noise in a separate chassis, away from the sensitive amplification stages of the preamp that can easily pick up EMI and RFI noise. This ensures a deep and quiet noise floor with an abundant supply of DC power for the C318 and your system to perform at its best. 

There are two switches on the power supply, one for the main circuits of the preamp that can be left on, and one for the tube circuits to prolong tube life when not in use. 

Further upgrades to the power supply are capable with the purchase of an SP capacitor pack or FCF 200V for the tube B+ via the preinstalled rear jacks. What is an FCF? What is an SP Capacitor Pack?

Specifications 

Separate controls for Warm, Solid State, 6922, and 6SN7 that are user selectable and variable for each signal path

Selectable paper in oil capacitor circuit

External power supply with separate power switch for longer tube life

3SE and 2 SE/BAL inputs

SP jack and FCF jack installed for future SP Capacitor Pack or FCF 200V B+ plug and play upgrade

Shipping Information 

If you are interested in purchasing the C318 preamplifier, please send me a message using the form below to start your build.