500 Series Tube and Solid State Mic Preamp
The LaChapell 500DT dual topology preamp is a 500 series microphone preamp that features two separate topologies or amplification paths for unprecedented versatility and value for project studios, home studios, or professional recording studios.
The 500DT is both a tube mic preamp and a solid state preamp in one 500 series module. When the blend knob is fully to the tube preamp side, the signal will pass through a custom transformer before being amplified by a TrueTube™ powered 12AX7 vacuum tube. TrueTube is LaChapell Audio’s proprietary method of supplying a full 250V to the vacuum tube so you get loads of vintage clean tube gain (or drive it a bit harder to get some grit and bite).
When the blend knob is turned fully to the opamp side, the signal passes directly to a solid state microphone preamplifier. This input is transformerless and will provide clean gain with exceptionally low noise. Placing the blend control anywhere between the two extremes will “blend” the two topologies for a near infinite variety of tonal options.