Haven't heard of that brand, but many cheaper professional amps are known for noisy fans, questionable sound quality, and very iffy build quality/reliability. Even the Crown amps are very light weight and have a fan (but no serious complaints).
Professional amps are used for sound reinforcement of larger venues, so sound quality is normally of secondary concern and don't get a lot of attention.
Check out soundonsound.com for good reviews of professional gear, including amps.