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Initial Setup

:

When first connecting your LUNCHBOX 

Acoustic

, before power is applied, please be sure to set 

the controls as follows:

•  REVERB set to off. (Fully counter-clockwise.)

•  BASS set to mid-point. (12 o’clock position.)

•  TREBLE set to mid-point. (12 o’clock position.)

•  VOLUME set to off. (Fully counter-clockwise.)

•  GAIN set to mid-point. (12 o’clock position.)

•  FEEDBACK CUT set to off. (Fully counter-clockwise.)

•  SPEAKER switch on rear panel set to “Internal” position. (Towards left side.)

•  Now you can apply power, and turn up your instrument and/or microphone to the desired 

level using the VOLUME knob.

Gain and Volume:

Normal adjustments to the sound level should be made using the master VOLUME control only. 
This knob affects the signal levels going into the LUNCHBOX 

Acoustic’s

 high-power amplifier. It 

does not affect the electrical level at the EFX SEND jack, but will affect the sound level of all other 
outputs (Internal or External Speaker, and Headphones).

The GAIN controls are used to set the input sensitivity of each channel. In most cases, these 
controls should be set high up, generally above the 50% point of their ranges. This will assure a 
good tone, and low operating noise. Of course, you might have to adjust the GAIN controls to feed 
your favorite effects properly.

The key to low noise is to keep the GAIN knob high, and use the VOLUME knob to adjust your 
sound level.

Bass and Treble:

The LUNCHBOX 

Acoustic

 features separate BASS and TREBLE controls for Instrument 

and Microphone channels. At ZT, we don’t take these features lightly. We studied classic and 
modern tone controls, noting each one’s strengths and weaknesses. In the spirit of the original 
LUNCHBOX amp, the LUNCHBOX 

Acoustic

 provides an extraordinarily wide palette of tones 

using simple controls, giving you quick access to just the sound you seek.

Reverb:

The LUNCHBOX 

Acoustic’s

 REVERB effect is a traditional plate style reverb that simulates the 

echo and decay of sound reflections in a room or hall. You can adjust the amount of REVERB 
on both the Instrument and Microphone channels from the top panel. ZT’s proprietary dynamic 
processing handles other sonic features as you play, but we give you the flexibility to separately 
control this primary sonic flavor.

Содержание LBA1

Страница 1: ...Owner s Manual ZT Amplifiers LBA1...

Страница 2: ...4 CLEANING Unplug this product from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning 15 NON USE PERIODS This amplifier should be unplugged f...

Страница 3: ...AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION FOR CONTINUED PROTECTION AGAINST FIRE REPLACE ONLY WITH SAME TYPE 250V FUSE Acoustic Vocal Amplifier LBA1 Adjusts the Reverb level Adjusts level of...

Страница 4: ...ons giving artists of many styles and genres a consistently great playing experience over the years ZT s research investigation was clean slate We didn t assume we knew any secret magic formula we set...

Страница 5: ...nels with the stereo AUX INPUT 1 8 jack on rear panel and routes them to the buffered EFX loop The EFX SEND can be used as a DI or Line output without interrupting the LUNCHBOX Acoustic s internal sig...

Страница 6: ...nel In most cases these controls should be set high up generally above the 50 point of their ranges This will assure a good tone and low operating noise Of course you might have to adjust the GAIN con...

Страница 7: ...ls and the output volume on your player We recommend that you disconnect any cables from the AUX INPUT when it is not in use EFX Loop Allows effects to be inserted after the input stage resulting in a...

Страница 8: ...rols all set at midpoint and the VOLUME all the way down Then inch up the VOLUME step by step Season to taste Because of the high available gain some acoustic instruments may tend to feedback if the G...

Страница 9: ...which we believe results in specifications that are both conservative and useful The internal speaker of the LUNCHBOX Acoustic is nominally 8 with a DC resistance of 5 3 Electrically the amplifier ou...

Страница 10: ...t 200 watts greater than 130dB 1 meter 3 3 Voltage Switchable 115V 230V Controls Top Panel Dual Channel Volume Gain Bass Treble Reverb Master Volume Feedback Cut Rear Panel Line Out Headphone Level Sp...

Страница 11: ...com to explain the defect and to obtain an RMA number return materials authorization number then return the complete product in original packaging if available to an Authorized ZT Amplifiers Service...

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