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.
HIIT â thatâs high intensity interval training â has been the core subject of many training inquiries as of late. âWhen should I do HIIT? Is it better to get my cardio in before or after my weights session?â The answer comes down to a little bit of science and a lot of common sense. Many say that itâs better to perform your cardio beforehand, as it gets your heart rate up and can serve as a warm up for your body.