Report Abuse. First of all - RCA's, Pre-amps, Pre-outs, or just Outputs are all common terms referring to a head units low/line level rca style outputs used to drive an amplifiers input.The most basic HU's just offer a single pair (left and right) of pre-amp outputs.eport Abuse. First of all - RCA's, Pre-amps, Pre-outs, or just Outputs are all common terms referring to a head units low/line level rca style outputs used to drive an amplifiers input.
An ideal cardio session should be around 45 minutes. If you lift weights before aerobic training, youâll only need 15-20 minutes of cardio. Youâll get the same benefits as you would do in 45 minutes without weight training.
Â· just now. Report Abuse. You should try go to to the gym 6 days a week and do 4-5 days of intense cardio (keep your heart rate up for at least 45 minutes). You should also do weight training for at least 30 mins. Make sure to rest for 48 hours before working out the same body part.