QX Series Amplifier with DSP Processing

QX4500 [2x1900@4Ω]

QX4500

Introduction

The QX4500 captures all the key elements of Quest Engineering’s advanced amplifier designs and marries it perfectly with on-board 64-bit digital processing to produce an advanced power amplifier/DSP management system suitable for all professional applications.

With an amplifier section boasting 1900 Watts of pure sonic power per channel at 4 Ohms, low standby mains consumption, the QX4500’s rugged construction and stylish design allow it to be a brut of workhorse when it comes to power output, yet the sophistication of its on-board DSP give a depth of control that meets the highest of engineering standards. The integrated DSP also features 10 parametric equalizers (PEQs) on each input and each output. Up to 100 presets can be stored in the DSP for instant recall.

Features

Key Amplifier Features

  • QX4500: 2 x 1900 W / 3800 W (BTL)
  • Extensive protection scheme
  • Low standby consumption

Key DSP Feature Set

  • 64-bit digital processing
  • 100 presets
  • Fully configurable routing of inputs to outputs
  • 2 AES and 2 Analogue inputs
  • 10 parametric filters per input and output
  • Parametric filters: Bell, High Shelf, Low Shelf, Notch, Allpass, Butterworth, Bessel, Linkwitz-Railey filters up to 24dB/oct
  • Delay, Limiter, 180° phase change
  • Input gain: -48 to + 12dB
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Specifications

Max. Output Voltage 140 Vp / 280 Vpp
Output Circuitry Class H
Signal To Noise-Ratio (20 Hz - 20 kHz, 8 Ω load) > 105 dB (A-weighted) / > 102 dB (unweighted)
THD+N (typical) (20 Hz - 10 kHz, 4 Ω, 120 W output) < 0,02 %
Damping Factor (8 Ω load, 1 kHz and below) > 400
Frequency Response (4 Ω, 120 W output) 20 Hz - 20 kHz ± 0.2 dB
Input Impedance 15 kΩ balanced
Input Gain 32 dB
Protection Circuits inrush-current limitation, protection circuits against transients, temperature, output
DC protection, power transistor SOA protection, intelligent mains fuse protection
Indicators LED’s for SIGNAL/PROTECT, CLIP, LCD (character 2 x 16)
Net Weight 9.4 kg / 20.7 lbs
Shipping Weight 11 kg / 24.3 lbs
Dimensions (WxHxD) 483 x 88.1 x 419 mm / 19 x 3.5 x 16.5 inches (19”, 2U)
Shipping Dim. (WxHxD) 600 x 105 x 527 mm / 23.3 x 4.1 x 20.7 inches

Stereo

All channels driven @ 1kHz, THD < 1%

16 Ω 600 W
8 Ω 1100 W
4 Ω 1900 W
2 Ω 1500 W

Mono Bridge

Single channel driven @ 1kHz, THD < 1%

16 Ω 2200 W
8 Ω 3800 W
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Contact Quest

Phone: +61 (0) 3 8373 6868

Address: 130 -140 Melrose Dr, Tullamarine VIC 3043 Australia

Postal: P.O. Box 1071 Tullamarine VIC 3043 Australia

Find Your Local Distributor

Feel free to get in touch with your nearest distributor. We’re always happy to hear from people interested in our products and we’re always ready to help you with your next project. You can find your nearest Quest distributor on the map below.

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Contact Form

For general enquiries email Quest Directly using the enquiry form below.

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