devices · FM3 · reference · Levels

levels

Input trim, output level and preset level do three different jobs on the FM3. Use each control for its own job.
section
sound
firmware
Cygnus

Three jobs

Fractal give you more level controls than any other modeler, and put meters on all of them. There are three jobs: get the guitar into the converter cleanly, match the output to what you plugged into, and make your presets the same loudness as each other. Each job has its own control. Doing one job with another's control is where rigs go wrong.

FM3 Owner's Manual
watch out

Input trim is not a gain control

Trim does not change your tone. As you lower the trim into the converter, the output of the converter is raised by the same amount, so what reaches the amp models, and what you hear, stays exactly the same. It is there to optimize signal-to-noise, not to push the front end. For more gain, use the Amp block's Drive.

Setting it up, in order

  1. Step 1

    set the input trim once

    Plug into the Instrument input, pick your loudest pickup, open everything up, and play hard while you watch the meter. Aim for your loudest playing to tickle the red. The red LED lights below clipping, not at it. The trim lives under SETUP : I/O : Input.

  2. Step 2

    then match the outputs to what you plugged into

    Two output knobs, one per rear-panel pair. OUT 1 is the master level for the FM3 and for computer audio played back through it. Set it at soundcheck and leave it alone. To control playback on its own, use USB 1/2 Level under SETUP : I/O : USB instead of moving OUT 1.

  3. Step 3

    output 2 has a Type setting, and the default is unity

    Output 2 defaults to UNITY GAIN, which is what the four-cable method wants. Unity means the OUT 2 knob fully clockwise, not at noon. If you are feeding studio monitors or FRFR speakers from Output 2, switch its Type to LINE LEVEL. Output 2 can also be set to mirror Out 1 or In 1 without editing a single preset.

If the outputs clip, your presets are too hot. The trim is not the cause. Fix it with preset levels, starting at the Amp block.

FM3 Owner's Manual

Making your presets the same loudness

This is the third job, and a playable set depends on it. It does not use the two controls above. Those are set once and left alone.

use the Amp block's Level

When a preset, scene or channel is louder or quieter than its neighbors, fix it with the Level parameter of the Amp block. This holds across the whole platform. Output knobs, block levels and the mixer each have a different job, and using them for this makes the rig hard to follow later.

watch the meters, then use your ears

Zoom the Layout grid out and VU meters appear across the top, scaled −20 to +10 with a red line at 0. That is an internal level, not a dBu reading. Play the same thing while you switch presets, and aim for the meter to hover around the line. Chugs always hit hardest. Trust the meters, then check by ear.

make the loud ones quieter, not the quiet ones louder

To make a lead sit above a rhythm, the manual says to bring everything else down, not push the lead up. Boosting is what causes clipping. These modelers have the headroom and noise floor for a preset well below the others to cost you nothing.

some blocks break the rule

If a compressor or a gate follows the amp, changing the amp's Level changes how they behave, so adjust the last dynamics block instead. The same goes for a nonlinear effect after the amp, such as tape saturation or a bitcrusher. If you use the drive inside the Cab block's preamp, level that block instead of the amp.

FM3 Owner's Manual

If it still sounds wrong

Check the cab block next: on into anything full-range, off into anything that ends in a real guitar speaker.

Rig setup—cabling and the cab block, per rig

real amps, each read from its schematic, ready for your FM3.

presets for your FM3 →