DigiTech VTP1 Manuale d'uso - Pagina 11

Sfoglia online o scarica il pdf Manuale d'uso per Apparecchiature musicali DigiTech VTP1. DigiTech VTP1 15. Dual vacuum-tube preamp/eq/converter

LO MID EQ plot

Boosting frequencies adds gain and you may find that this lights the CLIP LED. If this

occurs, reduce the level with the PRE GAIN control or POST TRIM.

EQ In/Out switch

This switch removes the entire EQ circuit from the signal path. This is useful if you want to con-

firm that your EQ modifications are an improvement on the non-EQ'd signal. If you are not plan-

ning on using the EQ, this switch should be left in the "Out" position.

LO-CUT switch

This switch places a steep 12 dB per octave shelving circuit in the signal path with a knee frequen-

cy of 75 Hz. The LO-CUT filter can be engaged independently of the EQ In/Out switch. This is

useful for removing rumble from a microphone input signal. It is also good for reducing the very

low frequency harmonics in signals that cause a muddy low end or sap amplifier power unneces-

sarily. The following graphic shows the frequency response of the VTP-1 with the LO-CUT filter

in and out.

This activates either the Microphone or Line input.

HI MID EQ plot

Lo Cut "Out"

Lo Cut "In"

Lo Cut Filter Plot

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