9 - 12 volt DC
By using it with a tube amp you can switch from a crunch sound to a powerful and creamy lead sound. Similarly, it can be used to give an overdrive pedal more saturation. Finally, the CostaLab Booster can also be used to increase your own volume during your solos.
Just because of its aptitude for use in situations with a lot of gain, the pedal has been set in order to get a thinly hazy response on treble, a warm and smooth sound, very reminiscent of the sound produced by a tube system. It is well known, indeed, that with distorted sounds and rich in harmonics, adding an additional gain stage often involves the presence of rattling treble too.
Being particularly quiet, the pedal can be used at high gain levels without contraindications. The CostaLab Booster is also able to function as attenuator as the volume control is set to zero, while at the maximum position the pedal is able to gain +26db.
The CostaLab Booster is equipped with a mechanical "true bypass" switching system and with an anti-pop filter too.
The unit is powered by 9 DC volts and is connected by the classic DC 2.1 mm plug with negative pole-center. The current draw is less than 20 mA. The unit can also operate with a 9-volt battery. In this case the circuit is on by the input jack.
In order to save the battery life it is recommended to remove the input jack from the socket when you stop using it.
You can still keep the battery inside the pedal even when it is powered through the DC socket, for the external power supply system is able to automatically rule out the battery.
The unit is 118x60x34mm not counting the knob and the jacks.