Amps

The amp shapes your tone as much as the guitar does.

Choosing an Amp

Using an Amp

Starting points by style

Rough dial positions to start from — every amp responds differently, so treat these as a jumping-off point and tweak to taste.

Clean / Country

Low gain, bright EQ with treble up slightly, a touch of spring reverb, and a compressor if you want punchy, even picking.

Push the amp into light, natural overdrive rather than a pedal, mid-forward EQ, and a moderate amount of reverb.

Medium-high gain with a mid boost so solos cut through the mix, plus a delay for sustain on longer notes.

High gain, tight low end (roll bass back slightly to avoid mud), a noise gate, and mids scooped or boosted depending on the sub-genre.

Keep EQ close to flat for a natural tone, add only light chorus or reverb, and go easy on compression.

Very low gain or fully clean, warm and rolled-off treble, and a hollow-body guitar into a flat-response amp for a round, mellow tone.

Nylon-string guitars rarely need an amp, but if amplified via a pickup, keep it flat and clean with just a touch of reverb to preserve the natural tone.

Bright, clean, and dynamic with minimal effects, so fast flatpicking and interplay with other acoustic instruments stay crisp and articulate.

Do's and don'ts

Feedback, and how to stop it

That rising squeal or low howl is the amp's own sound getting back into your pickups and going round again. It is a loop, so you break it by changing one part of the loop.

What makes a good lead

Your cable is part of your signal chain, not an accessory. A bad one hisses, crackles and quietly takes the top end off your tone.

Practice vs gigging

A 10–20W combo is plenty at home; gigging usually calls for 30W+ or a PA-fed setup.

Tube, solid-state, or modeling

Tube amps are warm and dynamic but heavier and pricier; solid-state is reliable and affordable; modeling amps pack many amp/effect tones into one unit.

Combo vs head & cab

Match the guitar

Electric guitars need an electric guitar amp; acoustic-electrics sound best through an acoustic amp built for a fuller, flatter response.

Channels & effects built in

Some amps offer separate clean and overdrive channels, or built-in reverb/delay — handy if you don’t want to buy pedals right away.

Gain vs volume

Gain (or "drive") controls how distorted the tone is; volume (or "master") controls how loud the final signal is.

Bass, mid, and treble shape the tone — small adjustments go a long way.

Standby switch

On tube amps, flip power on first and let it warm up before flipping standby — protects the tubes.

Effects loop

Time-based effects (delay, reverb) usually sound best plugged into the effects loop rather than the regular input, after any distortion.

Headphone / line out

Lets you practice silently or record direct into an interface without mic’ing the speaker.

Turn the amp’s volume up before your guitar’s to keep the signal-to-noise ratio clean.

Point the amp away from the mic or pickups when recording or on stage to avoid feedback loops.

Let a tube amp warm up for a minute before playing hard.

Start with EQ flat and gain low, then add only what the song needs.

Use a surge-protected power strip, especially for tube amps.

Don’t run a tube amp at full volume with no speaker or load connected — it can damage the output stage.

Don’t stand directly in front of the speaker at high gain with the guitar pointed at it — that’s what causes squealing feedback.

Don’t leave a combo amp on standby for hours — switch it off fully when you’re done.

Don’t stack too much gain from both a distortion pedal and a hot amp channel — it usually just sounds muddy.

Don’t cover the amp’s back vents — tube amps need airflow to avoid overheating.

Move, or turn away

Step out of the speaker’s firing line and angle the guitar away from it. Standing right in front of the amp is the most common cause.

Back off the gain

High gain feeds the loop. Lower the gain and bring the master up instead — you keep the volume without the squeal.

Mute what you are not playing

Rest your palm on the strings between phrases, and roll the guitar’s volume knob down when you stop. Open strings ring sympathetically and set it off.

Trim the frequency that is howling

A shrill squeal usually means too much treble or presence; a low, boomy howl means too much bass. Cut the one that matches what you hear.

Acoustic-electrics: cover the soundhole

A hollow body howls at low frequencies through the soundhole. A rubber soundhole cover and a little bass cut fixes almost all of it.

Hum is not feedback

A steady buzz that changes as you turn is single-coil hum picking up interference. Move away from screens, dimmers and power supplies — humbuckers cancel most of it.

Shielding first

Dense braided or foil-plus-spiral shielding is what keeps hum out. Coverage matters far more than the colour of the jacket.

Low capacitance

Every cable rolls off some high end. Better leads state their capacitance per metre — a lower figure keeps your tone bright.

Only as long as you need

Around 3m is plenty sitting down, 6m for standing up and moving. Past about 9m the treble loss becomes audible, so a buffer or active pickup helps.

Look at the connectors

Proper strain relief where the cable enters the jack is where cheap leads fail. Soldered joints and a metal barrel outlast moulded plastic ends.

Right-angle at the guitar

For a side- or recessed-jack guitar, an angled plug at the guitar end and a straight one at the amp puts far less strain on the socket.

Coil it over-under

Alternating the loop direction as you coil stops the cable developing memory and internal breaks. Never wrap it tight round your elbow, and unplug by the connector, not the cable.

A combo (amp + speaker in one box) is simpler and more portable; a separate head and cabinet gives more flexibility later.

Guitar Amps, Feedback & Leads | GuitarGenie
The Instrument
The Music
Everything Else
{{ leftyNote }}

Strings & Tuning

Fit a new set, get it in tune, and pick the right gauge next time.

One string at a time
Change strings roughly every three months of regular playing, or sooner if they sound dull or look corroded. Working one string at a time keeps the neck under even tension.
{{ ss.n }}
{{ ss.text }}
A string winder with a built-in cutter and bridge-pin puller turns this into a three-minute job. It is the cheapest tool worth owning.
{{ tunerCaption }}
Using a clip-on tuner
{{ tt.n }}
{{ tt.text }}
Tuning the guitar to itself
No tuner and nothing to tune to? The guitar can tune itself. It will not be at concert pitch, but it will be in tune with itself, which is all you need to play alone.
{{ sr.from }}
{{ sr.to }}
{{ st2.n }}
{{ st2.text }}
String gauges
Lighter gauges are easier to bend and fret; heavier gauges give more volume and sustain.
{{ gr.type }}
{{ gr.gaugeVal }}
{{ gr.note }}
Changing gauge changes the tension on the neck, so a big jump either way usually needs the truss rod and intonation resetting. Moving one step is normally fine; moving two or more is worth a setup.

Strumming & Rhythm

Patterns to play, and a metronome to keep you honest.

–
{{ scl.label }}
Beginners: start slowly. Once the pattern feels comfortable and you are not thinking about it, nudge the metronome up a few beats at a time.
{{ bpm }}
bpm
{{ metroHint }}
Making it feel right
{{ rt.title }}
{{ rt.text }}

Fingerpicking

Playing bass, chords and melody at the same time — with your hand rather than a pick.

Setting the hand up
Fingerpicking is less about speed than about the hand staying still. Get the position right and the patterns come quickly.
{{ ps.title }}
{{ ps.text }}
The finger names
Fingerstyle music labels the picking hand with four letters, from the Spanish. You will see them written above the notes.
{{ pf.letter }}
{{ pf.text }}
Patterns to work through
In order of difficulty. Learn each one until your hand does it without you watching, then move on. Slowly and evenly beats fast and ragged, every time.
{{ pp.name }}
{{ pp.chord }}
{{ pp.text }}
{{ pr.label }}
{{ pc.text }}
{{ pfg.label }}
{{ pp.caption }}
Styles worth knowing
{{ pst.title }}
{{ pst.text }}
Nails, flesh, or picks
{{ pn2.title }}
{{ pn2.text }}

Welcome to GuitarGenie

A handy reference for guitar nuts of all levels — totally free to use and it works offline when installed.  Use the search bar above, or jump straight in below...

The Instrument
The Music
Everything Else

Guitar Anatomy

Every part of the instrument named, so the rest of this app makes sense.

Labelled diagram of an acoustic guitar
1
2
3
4
5
6
7
8
9
10
11
Labelled diagram of an electric guitar
1
2
3
4
5
6
7
8
9
10
11
12
{{ ap.n }}
{{ ap.name }}
{{ ap.desc }}
Mirrored for a left-handed guitar. Every part sits in the same place — just on the other side.
Bass guitars share the same parts, usually with four thicker strings and a longer neck.

Chords, Notes & Scales

The shapes, the fretboard behind them, and the scales they come from.

Reading a chord diagram
Left-handed mode is on, so these diagrams are mirrored: the thickest string is on the right.
The six vertical lines are the strings as you look down at the guitar in playing position. The thick line across the top is the nut, and the horizontal lines below it are the frets.
A dot means press that string at that fret. An o above a string means play it open, and an × means do not play it at all.
The line under each diagram tells you where the shape sits — open position, or which fret a barre shape starts on.
Using a capo
A capo clamps across the neck and shortens every string at once, so a shape you already know comes out in a higher key. Play a G shape with the capo on the 2nd fret and you are playing an A.
Capo at
{{ ch.label }}
{{ cr.label }}
{{ cc.text }}
Read down the left for the fret, across the top for the shape you are playing, and the cell is the chord that actually sounds.
{{ ct.text }}
Barre chords
One finger pressing several strings at once. It feels impossible for a fortnight and then it does not — almost always technique rather than strength.
{{ bs.n }}
{{ bs.text }}
When a string will not ring
{{ bf.title }}
{{ bf.text }}
Filter the library
{{ chordCountLabel }}
Showing only chords that belong to the key of {{ selectedKeyInfo.major }} — relative minor {{ selectedKeyInfo.minor }}.
No shapes of that type sit inside this key. Try another chord type, or clear the key filter.
{{ cd.name }}
{{ mk.sym }}
{{ cd.variant }}
Every note on the first twelve frets. The open string is on the left, and at the 12th fret the names start over an octave higher.
{{ ng.label }}
{{ nc.note }}
{{ fn.label }}
Notes:
{{ sn.note }}
{{ row.label }}
{{ cell.note }}
{{ fn.label }}
Practice this scale
{{ scaleTabCaption }}
{{ sr.label }}
{{ sc.text }}
{{ sp.n }}
{{ sp.text }}
Five shapes, moved up the neck, cover every major chord there is. Learn where the root sits in each one and the whole fretboard opens up.
{{ cg.name }}
{{ mk.sym }}
{{ cg.variant }}
How to use it
{{ ch2.text }}
Worth knowing
{{ cn.text }}

Circle of Fifths

Which keys and chords sit naturally together, and why songs move the way they do.

Popular chord progressions
Pick a key and these are the same four or five progressions written out with its chords. Play them round and round — most songs you know are hiding in here.
{{ pr.name }}
{{ pr.degrees }}
{{ pc.label }}
{{ pr.text }}
Tap any key on the wheel. Majors sit on the outside, their relative minors just inside. Neighbours on the wheel share almost all their notes, which is why moving between them sounds natural.
{{ fm.minor }}
The key of {{ selectedKeyInfo.major }}
Relative minor: {{ selectedKeyInfo.minor }}. These seven chords are the ones built from this key — almost any song in {{ selectedKeyInfo.major }} uses them.
{{ kc.degree }}
{{ kc.name }}
{{ fk.name }}
{{ fmk.sym }}
{{ fk.variant }}

Practice

Finger exercises for every level, and how to hold the guitar so nothing aches.

{{ practiceLevelNote }}
{{ ex.name }}
{{ ex.builds }}
{{ ex.text }}
{{ ex.reps }}
{{ er.label }}
{{ ec.text }}
{{ ed.label }}
{{ ex.caption }}
Sitting
{{ pos.text }}
Standing
{{ pst2.text }}
Stop if anything hurts — aching muscles are normal, sharp or joint pain is not. Short breaks beat pushing through.

Buying & Selling

How to judge a guitar before you hand over money — and how to get a fair price when it is time to move one on.

Your first guitar
Buy the cheapest guitar that plays well, not the cheapest guitar. A badly set up instrument fights you on every note and is the most common reason people give up in the first month.
{{ bf2.title }}
{{ bf2.text }}
Second-hand checklist
Take ten minutes with the guitar in your hands before you talk money. Work down the list in order — anything in the first three is expensive to put right.
{{ bc.n }}
{{ bc.title }}
{{ bc.text }}
Walk away from a twisted neck, a lifting bridge, or a truss rod that will not turn. Everything else — frets, nut, electronics, a bad setup — is fixable, and worth haggling over rather than avoiding.
Getting a fair price
{{ ss2.title }}
{{ ss2.text }}
Where to sell
{{ sw.title }}
{{ sw.text }}
Fresh strings, a clean fretboard and honest photographs of every mark will earn you more than any amount of description. Buyers pay for confidence.

10,000-hour mastery calculator

The "10,000 hours" idea isn't a scientific guarantee — but it's a fun way to see the road ahead.

Hours you've already practiced
How much do you practice?
Hours logged
{{ calc.hoursSoFarFmt }}
Hours to go
{{ calc.hoursRemainingFmt }}
Per week
{{ calc.weeklyHoursFmt }}
Years to mastery at your pace
{{ calc.yearsAtPaceFmt }}
that's around {{ calc.etaYear }}
Want a target instead?
I want to get there in this many years
Needed / week
{{ calc.requiredWeeklyFmt }}
Needed / day
{{ calc.requiredDailyFmt }}

Types of guitars

Nine shapes cover most of what you'll run into.

Acoustic — Dreadnought
Acoustic — Dreadnought
Large-bodied steel-string with a big, punchy low end. The most common acoustic shape.
Acoustic — Concert / Parlor
Acoustic — Concert / Parlor
Smaller-bodied, comfortable seated, with a more focused midrange.
Classical (nylon-string)
Classical (nylon-string)
Wide neck and nylon strings, played fingerstyle — the foundation of classical and flamenco.
Electric — Solid body
Electric — Solid body
Bright, versatile tone from magnetic pickups. Stratocaster and Telecaster-style shapes are the archetype.
Electric — Single-cut
Electric — Single-cut
Warmer, thicker tone, often with humbucker pickups. Les Paul-style shape.
Bass guitar
Bass Guitar
Thicker strings tuned an octave below a guitar, carrying the low end of a band.
12-string guitar
12-string guitar
Six courses of paired strings for a fuller, chorused sound, common in folk and jangle-pop.
Archtop / hollow-body
Archtop / Hollow-body
A hollow, arched body with a warm, woody tone — the classic choice for jazz.
Resonator
Resonator
A metal cone inside the body amplifies the sound acoustically, giving a bright, metallic tone favored in blues and bluegrass.

A short history of the guitar

From gut-strung ancestors to solid-body electrics.

{{ era.era }}
{{ era.title }}
{{ era.text }}

Setup & Care

A guitar is wood, wire, and glue — small habits keep it sounding right for decades.

After every play
{{ it.text }}
Every few weeks
{{ it.text }}
Storage & humidity
{{ it.text }}
Buy a hygrometer
A hygrometer measures the humidity of the air. A small digital one costs about the price of a set of strings, and it is the cheapest insurance a wooden guitar can have — it tells you about a problem weeks before the guitar does.
{{ hp.title }}
{{ hp.text }}
Solid-wood acoustics are the ones that really care. Laminate bodies and solid-body electrics are far more tolerant, though necks and fretboards move on any guitar.
What a setup does
A setup is a handful of small adjustments that decide how a guitar feels under your hands. Most instruments leave the factory adjusted for shipping, not for playing, and a good setup is the single biggest improvement you can make to a cheap guitar.
{{ sp.title }}
{{ sp.who }}
{{ sp.text }}
Intonation
Intonation is whether the guitar stays in tune with itself as you move up the neck. Open chords sound fine, then something up at the 7th or 9th fret rings sour — that is intonation, not your tuning.
Checking it
{{ istep.n }}
{{ istep.text }}
On an electric each saddle moves individually, so intonation is adjustable at home with a screwdriver and a tuner. On an acoustic the saddle is a single piece and correcting it means shaping or replacing it — that one is a job for a tech.
When to see a tech
Plenty of maintenance is yours to do. These are the jobs worth paying someone for — a full setup costs less than you would think, and it transforms a guitar.
{{ tj.text }}

Tonewoods

The wood shapes the sound as much as the shape does.

{{ w.name }}
{{ w.use }}
{{ w.tone }}

Blank tab sheets

Print-ready manuscript paper for writing out your own tabs and chord charts.

Bass players can use the same six-line paper and ignore the top two lines; 12-string tabs can note the doubled string in brackets next to the fret number.

Amps

The amp shapes your tone as much as the guitar does.

Choosing an Amp
{{ it.title }} — {{ it.text }}
Using an Amp
{{ it.title }} — {{ it.text }}
Starting points by style
Rough dial positions to start from — every amp responds differently, so treat these as a jumping-off point and tweak to taste.
GAIN
BASS
MID
TREBLE
Clean / Country
Low gain, bright EQ with treble up slightly, a touch of spring reverb, and a compressor if you want punchy, even picking.
GAIN
BASS
MID
TREBLE
Blues
Push the amp into light, natural overdrive rather than a pedal, mid-forward EQ, and a moderate amount of reverb.
GAIN
BASS
MID
TREBLE
Rock / Lead
Medium-high gain with a mid boost so solos cut through the mix, plus a delay for sustain on longer notes.
GAIN
BASS
MID
TREBLE
Metal
High gain, tight low end (roll bass back slightly to avoid mud), a noise gate, and mids scooped or boosted depending on the sub-genre.
GAIN
BASS
MID
TREBLE
Acoustic-electric
Keep EQ close to flat for a natural tone, add only light chorus or reverb, and go easy on compression.
GAIN
BASS
MID
TREBLE
Jazz
Very low gain or fully clean, warm and rolled-off treble, and a hollow-body guitar into a flat-response amp for a round, mellow tone.
GAIN
BASS
MID
TREBLE
Classical
Nylon-string guitars rarely need an amp, but if amplified via a pickup, keep it flat and clean with just a touch of reverb to preserve the natural tone.
GAIN
BASS
MID
TREBLE
Bluegrass
Bright, clean, and dynamic with minimal effects, so fast flatpicking and interplay with other acoustic instruments stay crisp and articulate.
Do's and don'ts
Do
{{ it.text }}
Don't
{{ it.text }}
Feedback, and how to stop it
That rising squeal or low howl is the amp's own sound getting back into your pickups and going round again. It is a loop, so you break it by changing one part of the loop.
{{ fb.title }}
{{ fb.text }}
What makes a good lead
Your cable is part of your signal chain, not an accessory. A bad one hisses, crackles and quietly takes the top end off your tone.
{{ ld.title }}
{{ ld.text }}

Accessories

The small things that make a real difference — and the ones you can skip.

Plectrums
A pick is the cheapest thing that will change your sound. Buy a mixed pack, keep the ones you reach for, and lose the rest down the back of the sofa like everybody else.
{{ pg.name }}
{{ pg.range }}
{{ pg.text }}
{{ pn.title }}
{{ pn.text }}
Worth buying early
{{ ae.title }}
{{ ae.tag }}
{{ ae.text }}
Leads and cables
{{ al.title }}
{{ al.text }}
Nice to have
{{ ax.title }}
{{ ax.text }}
Spend on the guitar and a setup before you spend on accessories. A well set up instrument with one plectrum beats a badly set up one surrounded by gadgets.

Pedals

Small boxes, big changes to your sound.

Choosing pedals
{{ it.title }} — {{ it.text }}
Using pedals
{{ it.title }} — {{ it.text }}

Glossary

Quick definitions for the terms you'll run into.

{{ g.term }}
{{ g.def }}

Frequently asked questions

{{ f.q }}
{{ f.a }}

Legal

{{ l.title }}
{{ l.text }}
{{ legalUpdated }}

Contact

Questions, ideas or feedback? We'd like to hear from you...

Get in touch:
Corrections
If something here is inaccurate, please tell us and we will fix it. GuitarGenie knowledge is based on shared wisdom, and we would rather be accurate than confident.
Suggestions
If you looked something up and it was not here, that is useful to know.  Please send us an email referencing GuitarGenie with your suggestion(s).
Bug Fixes
Tell us what you were doing, and which phone or browser you were using. That is usually enough to find it.
Purpose
GuitarGenie is intended for general reference only.  Please consult a professional dealer or local repair technician for a professional opinion or for further assistance, if required.
Part of GenieSuite
GuitarGenie is one of a small family of free, focused tools built by GenieSuite — each one made to answer a single real question properly, with no account, no upsell and no data harvesting. 
GenieSuite is run by S. Deans, a sole trader based in Portugal. Full details are in .
We read and answer all messages, usually within a few days.
Advertisement
{{ promo.title }}
{{ promo.text }}
{{ promo.cta }}
GuitarGenie — Know more, fret less
Guidance here is general and offered in good faith. Setup and repair work carries risk — if in doubt, see a qualified guitar technician.
More from GenieSuite ↗
© 2026 GenieSuite · info@geniesuite.pro
GuitarGenie — Know more, fret less.
{{ toastMsg }}
Share GuitarGenie
Send this page to someone who would find it useful.
{{ st.label }}
🍪
We use cookies
Essential cookies keep GuitarGenie working. Analytics cookies help us improve it.