PH16

About the PH16

The Vacuum Tube Audio PH-16 is a premium phono preamplifier designed for audiophiles seeking ultimate tube sound quality without the high cost of comparable models like the Audio Research PH6 or PH8. It features a sophisticated circuit with a super-low noise JFET current source first gain stage driving a 6922 tube with RIAA equalization poles at 50Hz and 500Hz, providing about 50dB gain. The second gain stage uses a 6922 tube loaded with a constant current source (CCS) implementing the 2122Hz RIAA pole, offering around 45dB gain and improved impedance stability for accurate RIAA EQ. An AIKIDO style cathode follower output buffer ensures low distortion and low output impedance. The power supply is newly developed with four independent voltage regulators and dual CCS for noise reduction. The PH-16 supports proper cartridge loading adjustments, making it versatile for various MM and MC cartridges. Frequency response is flat from 10Hz to 50kHz within ±0.3dB, signal-to-noise ratio is 76dB (A-weighted), and sensitivity is 3.0mV for 400mV output. The kit includes all parts and tubes (four 6922 tubes) in a 16" wide chassis, It is highly regarded for its detailed, dynamic sound with excellent bass authority, clean highs, and wide soundstage, making it a top choice for vinyl enthusiasts on a budget compared to more expensive tube phono preamps.