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.
You should train with weights at least three times per week, up to even six times if you can recover from it and still make progress. If you are training for a specific sport, how many cardio sessions you need will depend greatly on the cardiovascular and muscle mass and strength requirements of your sport.f you're training to lose fat, you're going to need to do more cardio than someone who is training to gain muscle. A good starting point is three times per week, 20 to 30 minutes per session. Depending on the other factors we're going to discuss, you may need more or less than this.