Trichord Dino Phono Stage

The Dino is a high grade phono amplifier, designed for transparency and realism. It will maximise the performance of a wide range of quality cartridges from ultra-low output moving coil to high output moving magnet types.

Overview

The Dino is user adjustable with a set of four DIP switches on the underside of the unit for ease of access. These switches allow for adjustment of cartridge loading and gain setting. The circuitry is signal non-inverting and constructed using high performance, audio grade bipolar and JFET operational amplifiers, metal oxide resistors and ultra-low impedance capacitors throughout for lowest possible noise.

The RIAA equalisation network is fully passive and located between two active gain stages. The capacitors and resistors used in this stage are very close tolerance audiophile types. Two state of the art ultra-low impedance, low noise wide-band voltage regulators are employed to power both channels and are largely responsible for the high sonic performance of the Dino. A DC servo circuit is employed to keep the output DC level to a minimum.

Dino shown with Dino+ PSU

The upgrade path for the Dino phono stage consists of 3 optional add ons listed below. As with all ampification the purity and current quality fed to the phono stage affects the performance enormously and this is no exception.

Specification

Stereo Phono Amplifier for Moving Coil or Moving Magnet cartridges. Fully Passive RIAA equalisation between two active gain stages.