QTX QA Series Power Amplifiers – QA400
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QTX QA Series Power Amplifiers – QA400
Professional dual channel power amplifiers delivering high quality, dependable performance at an accessible price. Design of these workhorse amplifiers has been focused upon high power delivery without over-complicated features adding excessive costs. Yet still, these units are furnished with multiple connection possibilities and self protection circuitry to ensure that they will deliver, whatever the application.
This is a practical option if you need a qa series with clearly specified features and straightforward compatibility. The details below come from AVSL's current product information, so you can check the connections, size and performance before ordering.
What Is It Actually For?
It is designed for high power delivery. The remaining features make it useful where you want a tidy, dependable setup without unnecessary complication.
Why Choose This One?
The QA400 gives you a sensibly specified qa series from QTX. It is worth considering when you want the stated specification without paying for features that may not be relevant to your setup.
Who Is It For?
This is aimed at home users, installers, performers, schools, venues and production teams who need a suitable qa series. Suitability will depend on the connections and specification your system requires, so those are worth checking carefully.
Key Features
- High power delivery
- Overheat/overload protection
- Multiple input and output connection types
- 2U 19" rack mountable
- Balanced and unbalanced inputs
Specifications
| Brand | QTX |
|---|---|
| Model | QA400 |
| SKU | 172.020UK |
| EAN | 5015972059593 |
| Power supply | 110/240Vac, 50/60Hz (IEC) |
| THD | 0.25% |
| SNR | 90dB |
| Inputs | Combo (6.3mm jack + XLR) and RCA |
| Outputs | SPK, 6.3mm jack and 4mm binding posts |
| Packaged weight | 6.8000kg |
| Packaged dimensions | 88 x 88 x 482 mm |
| Country of origin | CN |
| Tariff code | 8518500090 |
What’s Included
- 1 x QTX QA Series Power Amplifiers – QA400
Please Note
Please check connections, measurements and compatibility before ordering. Batteries, cables, fixings and accessories are only included where specifically stated in the product description.
Not Sure If This Is Right?
If you are not sure whether this qa series will work with your existing equipment, get in touch with the make and model of the equipment you are connecting it to and we will help you check.

