RTS systems 465 Mic Preamp with limiter
Pair of RTS microphone preamps. Made in USA.
These are not very well known, but use a Beyerdynamic transformer on the input and – like API – Jensen trannies on the output. They also incorporate a subtle Vactrol-based opto limiter.
These usually need a screwdriver to access the gain trim-pot, but I have fitted a knob for easy adjustment.
Half-rack width but may be screwed together and mounted with the included rack-ears.
Nice budget preamps if you want something a little bit different.