The Audio Technica AT-RMX64

In my humble opinion the AT-RMX64 may be the best 4 track cassette recorder ever made.  It is a portastudio on steroids, 6x4 mixer with two band EQ on each channel, 2 sends and returns, balanced inserts on each input channel, discrete outputs for each mixer bus, dedicated tape direct outs, (4) headphone outputs, pitch control and Dobly B/C noise reduction.  The mixer is allegedly designed by neotek I been trying to confirm this but have not been able to.  The EQ on this is very unique it has (2) concentric dials with pullout switches, one for high band and one for low band.  The high band outer dial is for boost/cut with a center detent, the inside dial is the frequency control, the pullout switch on the inner dial changes it from a peak to a shelf.  The low band outer dial is for boost/cut with a center detent, the inside dial is the frequency control, the pullout switch on the inner dial changes it from a shelf to a rolloff. This 4 track is actually pretty noisy and noise reduction must be used to not have a hissy recording but the deck does sound killer (listen to attached demos song recorded with the AT-RMX64 just a TLA-50 compressor was used on the drums during mixdown).  The only thing bad about this deck is it is very heavy and not very porta-ble but it did come with a very robust case. I want to get a Marantz PMD-740 to do a shoot out.

AudioTechnica ATRMX64 Example