'The Chainheart Machine' sees Soilwork ditch some of their more melodic tendencies, concentrating instead on creating this hyperactive, aural gut-punch of a disc. A few changes to the line-up see the band get faster and tighter than on 'Steelbath Suicide', but unfortunately, the additional focus on speed is slightly detrimental to the songwriting. It's not terribly noticeable, but the album lacks part of the more emotive edge of it's predecessor in it's quest for velocity. The album isn't all high paced though, as 'Spirits of the Future Sun' provides the listener with a nice slower, melodic respite late in the album, before the band slips back into high gear with the intense closer, 'Room No. 99'. Overall, The Chainheart Machine is a strong disc, but a little weaker than Steelbath Suicide, which would be a more ideal place to begin investigating Soilwork's early phase.