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.
When you wish to lose weight most doctors recommend at least 30 minutes a day of some form of cardio exercise five times per week or more. This can be combined with a weight training regimen similar to the two times per week per muscle group routine discussed above.hen engaging in mainly a weight lifting routine, whether it be to lose weight or gain muscle mass, the best option for most people is to train each muscle group two times per week. Each workout should last for approximately 30-40 minutes.