Mark St.John

In this music video Mark St. John playing with his new Jackson Soloist guitar

"New guitarist Mark St. John stated that when recording the record, he had utilized his Rockman gear, and that heavy equalization was used to take the "Boston" sound out of the recording"

Here you can see Mark St.John shown with Hamer Custom 3-Octave Guitar

Here you can see Mark St. John tests his new red G&L Rampage

A picture of Mark St. John with Marshall Superlead Guitar Amplifier Heads seen on the background

Here you can see Mark St.John playing on black Takamine GD30CE

In this YouTube video, at 0:22 a Randall RG100ES head can be seen.

In a 1990 interview with Vintage Guitar® magazine, Mark St. John described his guitars with Kiss, stating, “Mostly a pair of black Jackson Soloists with Floyd Rose vibratos, as well as a yellow one with a Strat-style headstock. Later, I got a G&L Rampage.” This confirms his use of the Floyd Rose Original Tremolo System.

He is seen playing an Ibanez 2402 live with Front Page. It is identified by the symbols in the middle of each headstock, and the headstock being differently shaped than the Gibson “open-book” design.

The Seymour Duncan Pickups '59 Model is confirmed to be used by guitarist Mark St. John, as mentioned in the Charvel order form for his 1983 Jackson Guitar, visible in the bridge position. This information is documented in a listing by The Music Zoo titled "1983 Jackson Guitar Built For Mark St. John Yellow Gold."

In a YouTube video by Ivo Stan, it is mentioned at 0:28 that the Ibanez RG1200 Standard was owned by guitarist Mark St. John. The video also states that this guitar, made in Japan, was auctioned on eBay by St. John's sister, Kathleen Norton, and that it was set up by former Ibanez senior master builder Mike Lipe.