aion L5 Manual - Página 2

Procurar online ou descarregar pdf Manual para Amplificador aion L5. aion L5 20 páginas.

1 Project Overview

3 Usage & Circuit Design Notes

The L5 Preamp is a pedal conversion of the preamp of the Lab Series® L5 guitar amplifier, a Moog-

designed solid-state amplifier from the late 1970s that is widely considered the best and most tube-like

solid-state amplifier ever made. It has two channels which are both merged into a shared distortion/

master volume circuit as well as a compressor/limiter.

The original amps had the preamp integrated with the power amp. By splitting out the preamp, we can

use this either as a normal pedal in a chain (e.g. tuner → overdrive → L5 Preamp → modulation / delay

→ amp input) or as a true preamp by plugging its output straight into a power amp (either a dedicated

power amp or just the "return" jack of an amp with an effects loop). The main difference will be the

volume setting. It's capable of enormous signal levels, far more than any stompbox-so if you're using it

like a pedal, it's normal to keep the master volume down really low.

The updated L5 Preamp is a full redesign of our

it's much easier to build, with greatly simplified wiring and a cleaner layout. It also now runs on standard

9V DC power instead of AC like our earlier one.

There are also a few circuit tweaks. The first is a new feature: making the Multifilter section switchable

so that it can be applied to either channel. There's still only one of them, but now people who prefer

channel 1 can also experience the unique sounds of the multifilter.

The second tweak was to reconfigure the input op-amp stages as non-inverting, which cuts down on

noise and is typically viewed as better design practice. We've done simulations and A/B tests to ensure

the tone is unchanged.

The third change is to remove the hi/lo switches for each channel, which corresponded to the hi/lo

inputs in the original amp, and hardwired it to "Lo" mode (i.e. the one intended for low-level signals,

providing more gain boost at the input). The only function of the "Hi" input was to attenuate the input,

but the attenuated input sounds dull and lifeless in nearly any normal use case. You'll generally get

better results just turning down the channel volume if the "Lo" input is too hot with your instrument.

Lab Series

is a registered trademark of Gibson Brands. Use of the Lab Series name is not endorsed by Gibson

and is used for comparative purposes only.

L5 PREAMP

20 Licensing

original project from

2016. The biggest difference is that

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