MasterSounds Introduces High-Quality Compact Tube-Based DJ Mixer

Do you like vinyl and have more than one turntable? Maybe you are thinking about investing in a new phono preamp and a way to connect both even if it's probably too late to pretend you can learn to be a DJ (hey but the idea is cool anyway...)? Well, here's an interesting option - a compact tube DJ mixer with high-quality components, great sound and the coolest design. The MasterSounds compact Radius Two Valve is a two channel mixer powered by dual triodes. Read on...

As part of its ongoing 30th-anniversary celebrations in 2019, Chord Electronics has unveiled Huei, an all-new phono preamp that distills three decades of amplifier development and audio engineering expertise into a high-performance yet space-saving chassis. Entirely conceived, engineered and manufactured in Great Britain, the new microprocessor-controlled Chord Huei has been carefully designed to provide turntables with the same high standards of amplification the company has become known for over the past 30 years.

Boulder Amplifiers from Louisville, Colorado, announced the immediate release and shipment of the 2108 Phono Preamplifier, the brand’s reference level phono preamplifier. The 2108, is Boulder’s second generation of 2000-level phono preamplifier, following and improving upon the multiple award winning 2008 phono stage. All possible options and improvements for different ages of vinyl and cartridges have been considered for this new phono reference-level preamplifier.

I completed the design and construction of an archival phono preamplifier, which provides variable equalization along with several other operational necessities for playing vintage records (78-rpm discs, pre-RIAA LPs, lacquer transcription discs, and so on). When it came to selecting topologies for the balanced inputs and outputs, I ruled out transformers due to high cost, physical bulk, and weight. The most practical choice, in terms of size and cost, are the balanced line driver and receiver ICs made by THAT Corporation. This article was originally published in audioXpress, June 2010

To understand more about the Hafler revival, we delve into some of Hafler’s history and the companies associated with it. In this article, Gary Galo reviews the new Hafler PH50 (designed for moving magnet cartridges) and the PH60 (moving coil) Phono Preamps, as well as the Hafler PH44 Moving Coil Step-Up Transformer. All products come from Radial Engineering, the owner of Jensen Transformers and the Hafler and Dynaco brands, which it bought in 2014. This article was originally published in audioXpress, April 2017.

Many of today’s receivers and preamplifier processors do not have phonograph inputs, so anyone with a vinyl collection will need an external phono preamplifier. Bill Christie decided to build one using a TI high-performance op-amp, since the data sheet already included the schematic for a phono preamplifier. This article was originally published in audioXpress, July 2013.

The new Drawmer MC1.1 monitor pre-amp follows the success of the previous Drawmer MC2.1 monitor controller, this time designed with the project studio market in mind. The MC1.1 shares the same analog circuitry and robust linear power supply, while also featuring a phono input, at an affordable $549.00 MAP price.

Linear Audio 9 is the tenth volume in a series of bookzines dedicated to audio technology and perception. Linear Audio offers a variety of articles written by an international team of authors and accredited academics on a plethora of engaging subjects, from tutorials to circuit and system design, test reports and book reviews.