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Like all Quest products, the QX-280 Series is made to survive in a tough world.
Australian QC and advanced design engineering mean years of trouble free service in professional applications.
The QX-280 Series provides a price/performance ratio thatis hard to beat.
Studio quality sound and plenty of channels - the QX-280 Series is available in a wide range of single and multi-channel configurations.
Specifically designed for AV installations and high endcommercial sound, where hi-fidelity audio is required.
Powered with the latest in high quality, energy efficient, Class D amplifiers;
the QX-280 Series amplifiers can be integrated into both low impedance, and 70/100V line installations without compromise
The QX-280 range consists of three separate models.
Audio quality is studio class in both high and low impedance operation.
High quality class D amplifier technology makes it possible to have a compact single rack format with the right combination of power and channel density.
The transformerless outputs deliver full range audio toall impedance loads from 4Ω to 70/100V systems.
Each amplifier channel has a selectable 80 Hz high-pass filter (selectable via a swith located on the rearpanel), and a volume control for each channel that can be accessed directly from the front panel.
Each amplifier channel is also provided with a thermally controlled cooling fan.
Whether awake or asleep, the QX-280 amplifiers are not hungry for power.
The amplifier functions across the power range at an 89.5% efficiency rate.
With a sleep mode mains current draw of less than 0.5 watts per amplifier channel.
This is a great benefit for venues with a high amplifier channel count.
The automatic standby functionality mutes an individual amplifier channel after no signal has been detected for 10mins or more; and will put the amplifier into sleep a modeafter 30mins.
Automatic standby can be turned on and off for individualchannels via a switch located on the rear panel.
The operational voltage range of the QX-280 Series is also wide – from 85 to 265VAC, and no manual switching is required for high and low impedance operation.
This is a great reliability benefit for installations subject to inconsistent mains supply.
|
25A | ||
|
0.022% / 0.015% | ||
|
119dBA | ||
|
43.6m ohm | ||
|
±140V | ||
|
4 ohm | 280W | |
8 ohm | 245W | ||
70V | 250W | ||
100V | 240W | ||
|
±7mV | ||
|
±0.1dB 20Hz - 20kHz (1st order 22kHz LPF) | ||
|
32dB |
Mechanical Specifications | |||
|
QX1280 - 4.5kg | QX2280 - 4.9kg | QX4280 - 5.7kg |
|
QX1280 - 7.1kg | QX2280 - 7.5kg | QX4280 - 8.3kg |
|
44 x 485 x 304mm | ||
|
3-Way 5.08mm Captive Screw Connector | ||
|
2-Way 5.08mm Locking Captive Screw Connector | ||
|
IEC C14 | ||
|
85 - 265VAC |
* All specifications were measured at 240VAC
<p "="">** Quest Engineering reserves the right to make changes in specifications, or products without prior notice.
*** The figures shown above are ‘real world’,usable specifications and are conservative as a result.
(QX1280)
12 Months
SKU | QX1280 |
Model # | QX1280 |
Brand | QUEST |
Unit Of Measure | Each |
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