All Metal, More Power, More Fun We built Atom Amp 2 for those who demand more. Atom Amp 2 is like Atom Amp+ on steroids. It's housed in an aluminum chassis with an easier to grip knob, featuring both 4.4mm and 6.35mm headphone jacks, failsafe DC protection, and octo-buffers pumping out more than twice the power of Atom Amp+. No noise. Front-mounted controls. Hand matched potentiometers. Custom engravable. Atom Amp 2, your new go-to headphone amp. METAL ENCLOSURE Atom Amp 2 is built in an aluminum chassis, with an easier to grip metal knob. The anodized surface is also eligible for free, custom engraving. Add text or artwork as you please in the shopping cart. EVEN MORE POWER While most headphone listening demands only milliwatts, Atom Amp 2's octo-buffers achieve over 2.6W per channel of absolutely clean, distortion-free power. DUAL INPUTS, DUAL OUTPUTS Atom Amp 2 consolidates the need for a separate amp and preamp. Connect up to two sources and select between 3.5mm and RCA input with the push of a button. On the front, you will find both 6.35mm and 4.4mm headphone outputs for your convenience. PREAMP OUTPUTS Unplug your headphones from the 1/4in jack and Atom Amp 2's knob adjusts volume of its RCA preamp outputs, so that you can control volume of your powered speakers. DUAL GAIN Low gain of 1.0x with hand matched potentiometers are well suited to driving efficient IEMs. High gain easily powers demanding full size sets when paired with the matching 2VRMS Atom DAC 2. TOP PERFORMANCE Atom Amp 2 is beyond transparent, with the lowest noise floor of any Atom Amp to date thanks its 4-layer, star grounded layout and octo-buffers.