Quest Engineering QTA1120P User Manual - Introduction

QTA-

1120P/1240P

User Manual

User Manual

Q-Tech Commercial Series

QTA-1120P/1240P

2

Introduction

Congratulations on your purchase of a new 

Q-Tech Commercial series amplifier. Quest 

Engineering Q-Tech Series amplifiers are 

engineered and built to a standard that will 

satisfy the most demanding environments of 

commercial installation audio.

For your safety and continuing reliability of 

your Quest amplifier, please read all the safety 

instructions and familiarize yourself with the 

amplifiers functions and installation procedure 

section before installing and operating the 

amplifier. Quest has paid great attention 

to detail in order to maintain strict quality 

assurance standards of all Q-Tech Series 

amplifiers.

It follows that if your audio installation is 

completed with the same attention to detail, 

your amplifier will deliver its best results. 

Please red the section: 

Constant Voltage 

Distributed Speaker Systems Demystified .

Unpacking:

 Please inspect the amplifier 

carefully immediately after unpacking. If 

you find any damage, notify your supplier/

dealer immediately. Only the shipper may file 

a damage claim with the carrier for damage 

incurred during shipping.

Description

QTA series of Power Amplifiers cover 

models from 120W RMS to 480W RMS.  This 

manual is to for 120W QTA-1120P and 240W 

QTA-1240P.

•  Easy to use booster Amplifier

•  7 step LED Ramp for signal presence

•  XLR and phone jack input 

•  Rear mounted Input gain control

•  Parallel/Mono selection for the use 

of additional power amplifiers

•  Rear mounted switch for selection 

of 100mV or 1v sensitivity

•  8 ohm, 70V and 100V speaker output

•  XLR and phone jack output

•  Overload, over temperature, and 

speaker short protection.

•  115v-240v AC and 24v DC power in

•  2U height

•  19” rack or table mounted 

Rack ears supplied.

•  3 year replacement warranty.