H. "Full" vs. "Pre"

You'll notice there are two versions of every amp on the Pod HD, one with the amp name, and one with the amp name plus "pre". The "pre" amps only model the pre-amp section of that amp. They were designed to be used in combination with the Line6 DT-50 line of amps, which have switchable power sections/modes. Of course, most of us don't have DT-50's.

People on the forums have argued a lot about which versions you "should" use for any particular setup. For instance, I've often seen posts saying that if you are running the Pod to a real amp, you should use the "pre" version, because otherwise you're getting the power amp emulation plus power amp distortion from your real amp. Likewise, if you run "direct", you "should" use the "full" model, otherwise you're not getting any power amp in the sound. They argue that you want one power amp coloration, not zero or two.

This is logical, yet I disagree nonetheless. The power amp emulation has a rather profound effect on the way the Pod's amp models sound, even if you turn down the "Master Volume" DEP or set the bias colder. Your real amp is unlikely to replicate how that amp model's power section sounds on the Pod. You might not be cranking your amp to the point where it's getting power amp distortion, even at gig levels - many power sections are designed to have lots of headroom and remain transparent. And even if your amp's power section does get pushed into overdrive, it may still sound good with the "full" model on the Pod. Just because you're running two power amp colorations doesn't mean it will necessarily sound worse.

On the other hand, there is a certain crispness in the "pre" models that seems to be lost in the "full" models, even with the Master DEP at 0%. Even if the frequency response is not ideal, it can be tweaked to where you want it with amp EQ or EQ effects.

Thus, in general I prefer to use the "full" models for "direct" tones, while I'm about 50/50 on which to use for "live" uses - it depends on the patch.

Keep in mind that if you have a power amp that easily distorts, it is more likely to sound better with the "pre"s than the "full"s. I encourage you to experiment to determine what suits you best. On the other hand, some tones rely on power amp distortion. If your power amp isn't providing the same breakup, you will have to use the "full" model or won't be able to achieve the desired tone, even if you crank your real amp.

Finally, if your real power amp does distort at volume levels you will be playing at, take note to make patches that distort it in a desirable way. As noted earlier, the EQ of the tone you send to your amp will greatly affect the way it breaks up. If you use too much bass, the power amp distortion may make the tone muddier than you like. Your gear is limiting you. You'll have to brighten up your patches to compensate or get new gear or play at lower volumes.

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