PAC CF-1 Cross Flow Fan 8-1/4" cross flow fan Perfect for stealth installations, where the amplifiers are not out in the open air 54CFM of airflow Draw .19 amp Helps to draw cooling air over amplifiers and other system parts to reduce performance-robbing heat. Keeping your system cool with PAC fans increases performance, reliability and longevity 12 VDC brushless cross flow fan Excellent for custom cooling of amplifiers through a small horizontal slit on the mounting board above amps Perfect for stealth installations, where the amplifiers are not out in the open air 54 cfm of airflow / draws .19 Amps