Core 20

The whole Core toolbox — nine amp models, seven effects, a tuner, a drum machine and Bluetooth — in a 20-watt combo with two 5-inch drivers. Six kilos. Practice, record, and learn songs off your phone.

1. InputPlug your guitar in here.
2. ModelSelects one of the nine amp models.
3. GainSets how hard the preamp is driven — clean when low, overdriven as you turn it up.
4. BassCuts or boosts the low frequencies.
5. MiddleCuts or boosts the midrange — the body of the sound.
6. TrebleCuts or boosts the high frequencies.
7. EffectChooses the built-in effect and sets its depth.
8. ReverbAdds spring-style reverb, from a hint of room to a long tail.
9. MasterSets the overall level after the preamp — turn it up for power-tube drive.
10. LevelOverall output volume.
11. PowerSwitches the amplifier on — the pilot lamp glows when it is live.