Isolation Booth
An isolation booth for the purpose of studio recording needs to be an acoustically “dead” space. An isolation booth may be used for recording vocals / acoustic intruments and also for isolating guitar amplifiers.
It is important to cover at least 70% of the surface area of an isolation booth and include bass traps in at least one vertical corner, but two corners is preferable.
The recommended acoustic treatment is a 50/50 combination of At600/40 and SA600/75 wall panels, combined with RAM400/1000 corner bass traps.