IN: The Future Sound of London (often abbreviated to FSOL) is a British electronic music group composed of Garry Cobain (sometimes stylised as Gaz Cobain) and Brian Dougans. The duo are often credited with pushing the boundaries of electronic music experimentation and of pioneering a new era of dance music. Although often associated with ambient music, Cobain and Dougans usually resist being typecast into any one particular genre. Their work covers many areas of electronic music, such as ambient techno, house music, trip hop, ambient dub, acid techno.

"Cascade", released as a single in 1993, introduced the commercial music world to the new FSOL sound. Despite its length, clocking in at nearly forty minutes and stretched over six parts, the track made the UK top 30, and previewed what was to come. In 1994, they released Lifeforms to critical acclaim. The album featured unconventional use of percussion interspersed with ambient segments. The eponymous single from the album featured Elizabeth Fraser of the Cocteau Twins on vocals. The album itself featured epic, ambient soundscapes, with tracks flowing from one to the next with no pauses in between. Throughout the record, familiar motifs and samples repeated themselves, sitting alongside tropical birdsong, rainfall, wind and an array of other exotic sounds, lending the album a natural, organic feel, backed up by the environmental landscapes that filled the artwork booklet. Brian Dougan's father was involved with the BBC Radiophonic Workshop which was a heavy influence in the almost musique concrete feel to Lifeforms. The album was also a top 10 hit on the UK album chart. Cobain has said that around this time that journalists would come to talk to them and one of the first things they would ask would be if they liked Brian Eno (whom they cite as an influence), to which they would laugh and say that they were about looking forward, not to the past. It was, to them, very much a new work rather than just another Eno-type ambient album.  We wanted to release a very immersive, mind-blowing piece of music that was long and would deeply drench you in it...Lifeforms was redefining 'classical ambient electronic experimental' - that was the phrase we used.  That year, they released the limited edition album ISDN, which featured live broadcasts they had made over ISDN lines to various radio stations worldwide to promote Lifeforms, including The Kitchen, an avant-garde performance space in New York and several appearances on the late John Peel's celebrated BBC radio Sessions shows. These shows marked the evolution of the Kiss FM shows of 1992 and 1993, moving away from DJ sets and into ambient soundscapes, with previously released material performed alongside unheard tracks. One live performance to BBC Radio 1 featured Robert Fripp performing alongside the band. The released album's tone was darker and more rhythmic than Lifeforms. Cobain stated that with ISDN they had wanted to achieve something epic and grand but no matter how much technological or personal support they had (and they had everything they could have possibly wanted) they never got to truly do what they envisioned; he admits to wanting too much at this time, even though the album was successful; the 90s, for Cobain in particular, were a time of frustration and feelings of not being able to do what they wanted to, because the technology at the time didn't fit the band's ideas. The following year, the album was re-released with expanded artwork and a slightly altered track list as an unlimited pressing.
QUESTION: What was the ISDN tour?
IN: Aaron Turner (born November 5, 1977) is an American musician, singer, graphic artist, and founder of label Hydra Head Records. He is most widely known for his role as guitarist and vocalist for the post-metal band Isis, while also participating in several other bands and projects such as Old Man Gloom, Lotus Eaters and Split Cranium, a collaboration with Jussi Lehtisalo of Finnish band Circle who toured with Isis in 2009. Though raised in New Mexico, Turner moved to the Boston area where he attended school and formed Isis and Hydra Head. In June 2003, Turner moved operations of both the band and label to Los Angeles, California.

Touring with Isis in 2007, Turner used two different guitars: a 1976 Fender Telecaster Custom (black), and a 1975 Fender Telecaster Deluxe (brown), played through various effects (his pedalboard layout changed every gig depending on what songs the band decided to play that night), a VHT/Fryette Pitbull Ultra Lead, and two 4x12 Sunn cabinets. He has also acquired a custom guitar from the Electrical Guitar Company (as did fellow Isis guitarist Michael Gallagher).  In the past, Turner has also used a Gibson Les Paul Standard, PRS CE24, and has played through Sunn, Mesa Boogie, and Mackie amplifiers.  When playing with Isis, Turner and his fellow guitarists usually tuned their instruments (low to high) B-F#-B-E-G#-B, to achieve a heavier sound. They also used other tunings, though less frequently, such as F# (octave below)-F#-B-E-G#-B.  In 2016, Turner described the live rig he used with SUMAC as consisting of two custom-built guitars from the Electrical Guitar Company. Both have lucite bodies and aluminum necks, and custom-wound wide frequency range pickups. The newer of the two--a prototype for a signature model--has a slightly flatter fingerboard radius than the older instrument. On a tour of the Eastern US, Turner was using an Orange Dual Dark 100 amplifier head with a slaved Fryette Two/Ninety/Two power amp. Both heads drove Orange and Marshall cabinets, though Turner claimed to have no strong preferences for particular speaker cabinets. While recording, Turner prefers to use a Fryette Pitbull Ultra Lead, an amp model he's used consistently since his work in Isis. Turner described using a variety of effects pedals in his live rig. Specifically, he runs a BOSS TU-3 Chromatic Tuner, a Death By Audio Apocalypse fuzz, a MASF fuzz, a Strymon BlueSky reverb (which he described as the one essential pedal in his rig), a TC Electronics Ditto Looper X2, and an EHX Forty-Five Thousand sampler (used to trigger preset samples during performance. Turner prefers a Heil PR20 vocal microphone.
QUESTION:
What type of amplifiers did he use?