Description
The QTX Q240 is a stereo power amplifier built as a straightforward workhorse for venues, DJs and performers. It delivers 2 x 120W across two channels, giving you enough headroom for background music, live sets and general PA duties. The design keeps things simple and reliable, so you can leave it running through long sessions without fuss.
Connection options are flexible. Inputs come via 6.3mm jack (1/4") or RCA, so you can wire it up to mixers, media players and other line-level sources without adaptors. Outputs give you SPK connectors, 6.3mm jack and 4mm binding posts, covering most speaker cabling you are likely to have on hand. Fan cooling helps keep temperatures down when the amp is driven hard, and the frequency response of 20Hz to 20kHz covers the full audible range.
The Q240 fits a standard 19" rack in a 2U space, so it slots into flightcases and fixed installs alongside your other gear. It runs from a 230Vac, 50Hz IEC mains supply, with input sensitivity of 775mV at 10k Ohms, a signal-to-noise ratio above 98dB and THD below 0.5%. That combination makes it a dependable choice where you need clean, consistent output and room to expand your setup over time.
Specification
| Power supply |
230Vac, 50Hz (IEC) |
| Frequency response |
20Hz - 20kHz |
| Input connectors |
6.3mm jack, RCA (L+R) |
| Input sensitivity |
775mV, 10k Ohms |
| Output connectors |
6.3mm jack, SPK, 4mm binding posts (L+R) |
| S/N ratio |
>98dB |
| THD |
<0.5% |
Downloads
Product Manual
Frequently Asked
How much power does the Q240 deliver?
It provides 2 x 120W in stereo, giving you enough output for small to medium venues, DJ rigs and live performance.
What inputs does it have?
You get 6.3mm jack (1/4") and RCA inputs for the left and right channels, with an input sensitivity of 775mV at 10k Ohms.
What speaker outputs are available?
The Q240 offers SPK connectors, 6.3mm jack and 4mm binding posts for left and right, so most speaker cabling will connect directly.
Will it fit in a standard rack?
Yes. It is 19" rack-mountable and takes up 2U of space, so it fits standard flightcases and fixed installs.
How is it cooled?
It uses fan cooling to keep temperatures in check when the amplifier is driven hard over long periods.
What mains supply does it need?
It runs from a 230Vac, 50Hz mains supply via an IEC connector.