They are just part of an amp, the guitar puts out a very weak signal, this needs to be boosted to a level it can be worked with, the preamp is where the eq is applied and overdrive occurs if pushed hard, this signal is still quite weak and so is boosted in volume by the power amp, it just takes the signal and makes it louder (though analog tube tech means it will colour the sound too). I don’t know why it’s not done in one stage, must be easier to break it into two

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Lovely stuff.

I should definitely be interested in this stuff, but am always just happy to find a nice online diagram of pedal orders and copy that.

That article explains really clearly the purpose behind the two stages of amplification in a guitar amp.

An effects loop just allows you to insert pedals between the pre and power amps!

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all you really need to know is

If you run your amp clean it’s 100% fine to ignore the pedal loop

If you run it dirty you MAY find that you prefer to run your modulation/ reverb / delay type pedals in the loop. But you may not

those pedal order “rules” are fine, but you are not obliged to stick with them. As TTF mentions above shoegaze types often run reverb before drive which is technically “wrong” I run one of my delay pedals before a couple of my drive pedals cos I prefer it like that

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So, hang on, with my clean sound, I am achieving nothing by setting up the loop?

I have emperors new clothesed myself haven’t I?

I would never say that - it may sound better. If you think it sounds better it sounds better

I wound’t bother just cos of the extra cables etc needed to run pedals both in the loop and before the amp

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It may even be worse because the signal has been boosted by the preamp and then has to be lowered to not overload the pedals only to be boosted again, could degrade the signal, but as guitar amps aren’t about pristine reproduction that could be good so who knows

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Even a clean sound is tone shaped by the preamp to some extent, so it may still sound better to your ears to put your time-based effects (and perhaps modulation) in the loop rather than in front of the amp.

Wonderful.

Right, off to ebay to bid on every budget pedal.

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In terms of budget amps, recently got a vox pathfinder (denim edition) sounds as good as my egnater tweaker (mid range price) on clean, terrible distorted though

I’m not much of a guitarist, drums is my main thing, but I’ve recently started to acquire a bunch of cheap pedals for making weird sounds with guitar, synth or even my kaosillator.

Because I’m not that serious about it, just messing around, budget pedals have been a godsend to me. I’ve recently got a couple of Donner pedals that are cheap enough not to worry too much about if they don’t see much use:

The ‘tutti frutti’ chorus pedal is fine, does the job although it doesn’t have the same range as I’m sure you’d get on a more expensive one.

The ‘yellow falls’ delay pedal is great fun. There’s a ‘feedback’ knob which seems to be pretty binary: if you turn it up past about 2 o clock it kicks in and turns your chord or whatever into a screeching messy hell that’s 25x louder than you were originally playing. I have to be very careful using it for fear of blowing my amp or my eardrums. That feature aside though the standard delay sounds great to my ears. My project for half term is to try to hook it up to the patch bay of my ms20 in various weird ways.

Long live budget pedals!

Tip: stick a compressor after the delay pedal if you’re going to let the feedback control go nuts.

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What’s the deal with Compressors. I quite like them, but aren’t they a bit funk.

I barely know 'er!

Sorry.

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Above a certain input signal level (the ‘threshold’), they increase by an adjustable factor (the ‘ratio’) the amount of additional input signal level required to increase the volume of the compressed output signal.

That’s probably a poor definition, but I winged it.

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The dial essential

Sounds a little funky to me.

Compressors reduce dynamic range (i.e. the difference in volume between loud and quiet bits). They’re good for funky guitar, because you don’t want to have to get consistent dynamics in your playing through control of your picking hand alone!