Headphone & Speaker Amplifier.
Direct drive amplifier for True-Ribbon Earfield Monitor headphones, speakers, conventional dynamic, and planar magnetic headphones.
Switch Drive.
Drive the SR1a, conventional headphones, or speakers.
Input Options.
Unbalanced, Single-Ended RCA. True-Balanced, XLR.
24 Step Attenuator.
Precision 24-step attenuator for rock-solid left/right balance at all listening levels.
HSA-1b Reviews.
Headphone.guru
HSA-1b Review "The Pinnacle Of Personal Audio" / Peter Pialis
Headphones.com
HSA-1b Review / Ian Dunmore
Headphone & Speaker Amplifier.
Direct drive amplifier for True-Ribbon Earfield Monitor headphones, speakers, conventional dynamic, and planar magnetic headphones.
Unbox. Amplify. $4500
HSA-1b ($4500)
SR1a + HSA-1b / Roller Carry On Case ($8000)
SR1a + HSA-1b / Interface Box / Roller Carry On Case ($8500)
5 Year Warranty
