Lounge MM LCR Phonograph Preamp
The Lounge Audio Moving Magnet phonograph preamp is now in its MK-II incarnation. It is a high quality, dual-mono, pure analog phonograph preamp. This topology allows a unique application of smaller inductors that yields an ergonomic approach to LCR (L=Inductor, C=Capacitor, R=Resistor) phonograph reproduction. Vinyl minded audiophiles are growing in numbers with collectable, vintage releases often bettering the best digital formats and new vinyl issues being added to catalogs with increasing frequency. It is known by many in the audio community that LCR RIAA correction is a preferred way of capturing the experience and atmosphere of the original performance.
The passive LCR network is a topology that brings out the detail of small instrument inflections yet keeps a musical cohesiveness in context of the performance and room. Advanced hi-speed op-amps allow for transformerless direct drive of the LCR network. Current sources are employed to bias each amplifier stage into class A operation. The LT1358 op-amp is still made in a through-hole package allowing this preamp to be made with no surface mount parts. One set of dedicated inputs allow for the simplest path to the op-amp input. There are no switches between your cartridge and the amplifier. Discrete series/shunt power supply regulators are used with one dedicated to each amplifier IC power supply pin. Also for ease of current delivery the pass element of the series regulator is vastly over-rated in current capacity. No power supply ground shares an audio ground, and no grounds share channels.
All capacitors and inductors are hand matched. All assembly is done in the USA. Each unit is tested and burned with real music coming from a real turntable.
All capacitors and inductors are hand matched. All assembly is done in the USA. Each unit is tested and burned with real music coming from a real turntable.
