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.
This type of training is for the advanced runner looking to squeeze out that extra 5 or 10 percent from their training. Finally, the difficulty in adding heavy weight training to your training schedule is that itâs very tiring. Like a hard track workout, lifting heavy will leave your muscles sore and tired the next day.t your peak fitness, you can run a 10k at 50 percent of your maximal power. This means your submaximal sustainable power is about 250 watts. When you make yourself stronger, say by lifting heavy weights at near max effort, you might be able to improve your sprint power from 500 to 600 watts.