"Aside from buying a large format-console, it is hard to imagine any single piece of gear that could have a more profound influence on all of your recordings and mixes than the Space Heater. If you need to get out of a rut, or take your tracks to the next level, this is a surefire way to breathe new life into your work."

"Applications for the Space Heater abound; Radial suggests using it for a range of things, from the last stage of a vocal recording chain to desterilizing in-ear monitor mixes, all of which are personally tantalizing after having heard its capabilities in both studio and live settings... Notably, the unit is always crystal clean when you need clarity, or as dirty as you want it when you need grit."

"The multichannel Space Heater is a very cost-effective way to obtain eight channels of real tube and transformer distortion — for both track and stem processing. Plus, like all of Radial Engineering's products, [it has] great secondary features — sweepable filters on the module, summing bus and headphone output on the rackmount — that add real value, truly making it a multi-use box."

"The Space Heater not only excels as an expandable, eight-channel summing mixer that can add grit and a real vintage tube-console vibe to a final stereo mix, but also gives you the individual outputs that turn it into an eight-channel harmonic distortion effects unit that's more than useful at adding character and grit when you're tracking or creating stems."