The 312A is available as a 500 series module or a single or dual channel 19" rackmount.

Because there are no capacitors in the audio path, the 312A is super fast and punchy, allowing transients to pass easily, making them a favourite for drummers.

Made with the highest quality parts including Jensen input and output transformers and the Avedis® 1122 opamp. The 312A also includes a high impedance DI for instruments.

http://baeaudio.com/products/312a