According to a quick scan of professional audio forums, a perennial question is how to build a purist balanced volume controller. Two recurring themes are H-pad attenuators and dual-gang pots. H-pads ...

The circuit was designed to create a balance input device that would provide an adjustment of gain and volume while having a symmetrical electronic input. NE5532 – an internally compensated low noise ...

At $600, SPARTAN 30 promises low distortion volume control for use with active speakers or headphones. Volume Control: An active volume control circuit with a balanced output eliminates the need for ...

With fully balanced and improved circuitry throughout, the BAT VK-85 Preamp and REX 300 Amp claim pure musicality from a $27,500 combo. The REX 300 is a lower-powered version of the highly regarded ...