API R24

Not much is documented about the API R24. It is a dual-channel four-band equalizer from the Arsenal Audio by API line. It reissues a 1970s-era equalizer originally designed and built by APSI, a console builder whose products appeared in API sales catalogs for a few years. Mix Magazine reviewed the R24 as a rebirth of that earlier design and noted the unit had no trouble handling +26 dBu from a console's mix bus (Mix Magazine, January 2009, p.100). The front panel has a power switch, a jewel lamp and large U-shaped handles. MSRP was $1,195 (EQ Magazine, February 2011, p.5). Its stablemates were the R20 dual-channel mic preamp and the R22 dual-channel compressor. An ad summarized the whole line as API's attempt to bring its lineage to the project-studio market. No production years, price variations or detailed technical specs have been confirmed beyond these magazine mentions.

Type: Dual-channel, 4-band equalizer
MSRP (circa 2009): $1,195
Family: Arsenal Audio by API (alongside R20, R22)
Design origin: 1970s APSI equalizer circuit