Greg Ferguson
Legend!
You are describing symptoms of not enough volume, the Fletcher-Munson Effect in action, combined with using headphones which break the acoustic-coupling of the speaker and guitar at stage volume.I understand there will be differences between headphones and monitors. I actually like my phones more than my monitors.
Case in point, i was watching Cooper Carter demoing the Petrucci Rig 2025. It sounded huge and crunchy. Just what i expected a Petrucci rig to sound like. When i played my Ibanez Prestige with DiMarzio pickups, the tone was more like a midgain tone with really nasal mids. Im ticking the red at 10%.
The tone has no balls and very little sustain.
The Fletcher-Munson Effect describes how our brain perceives sound at low volume differently than at medium and high volume. Our hearing is more sensitive to midrange sounds at lower volumes but then begins to even out at ~90dB, stage volume. (That’s why we say to audition the factory presets at stage volume.)
Take off the headphones and route the sound through a speaker or speakers that are turned up. Acoustic-coupling doesn’t necessarily need a 1x12, it can work fine with desktop studio monitors, but the volume has to be high enough to begin shaking the strings. That’s another place where the sustain comes from, it’s not just the guitar’s construction or its components. And by raising the volume the sound will improve your ability to hear the lows and highs and will defeat the Fletcher-Munson effect.
[153] Because there's no string and body reinforcement. When you play through speakers the sound couples into the guitar body and strings. With headphones you don't get this so the sound is very sterile and lifeless.
Now, if you use speakers during recording and then playback through headphones it will sound fine.
[154] It's lack of acoustic reinforcement. I did a test a few years ago and I don't remember the actual numbers but having a speaker aimed at the guitar adds many dBs of power to the lower mids coming out of the guitar. IOW, if you measure the spectrum of the signal coming out of a guitar alone and then compare that to the signal coming out with a cab or monitor in proximity at a reasonable volume there are a LOT more lower mids with the speaker present. This results in a "thin" sound without the speaker.
[155] The problem with headphones is that there is no acoustic reinforcement of the guitar. There is zero coupling between the speakers (inside the headphones) and the guitar. Without that coupling, which is a type of positive feedback, the sound is lifeless, thin and harsh.
When your heroes recorded their guitar parts that weren't using headphones.
On "Appetite for Destruction" Slash recorded his guitar parts in the control room. To get even more coupling into the guitar a combo amp was in the control room with him pointed at the guitar. A volume pedal allowed him to adjust the volume of the combo amp so he could control the coupling. With the volume pedal all the way up he could get controlled feedback.
I've actually done tests comparing the spectrum out of the guitar when there is no coupling (i.e. monitors turned off) and with typical coupling (monitors loud or using a conventional cab). The boost in the low midrange is significant. I forget the actual numbers but it was at least several dB.
I did some studies years ago and having a speaker in proximity to the guitar actually changes the final tone considerably. I compared the frequency response with the amp in isolation to the frequency response with the amp in proximity and measured several dB difference in the lows and mids. It was clearly audible when the recordings were played back.
I use headphones almost all the time, but my final EQ step is on stage during sound check at stage volume, then I leave the EQ alone when I get home and use headphones again because I know the sound is not set up for headphones. I also use Ollo S5X headphones which are very flat and match the sound of my monitors well.
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