Enjoy solid-state clarity or tube warmth with the blue tube DP dual-path mic/instrument preamp, which features both Presonus' classic class A max solid-state mic preamplifier and a high-output, 12AX7 tube preamp that operates on voltages double that of other preamps in its class, providing lots of headroom and big tone. A tube drive control produces anything from gentle warmth to edgy distortion. With two combo mic/instrument inputs, The half-rackspace Blue tube DP is a great choice for guitars and basses as well as vocals.