RCS Audio-Systems QDA-428 A
Digital power amplifier, 2 HU, 4x 700 W (4 ohms) / 4x 400 W (8 ohms), with DSP function
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4.351,00 EUR |
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( 5.177,69 EUR incl. VAT ) ≈ £3,733.16 | ≈ $5,042.81 plus delivery charges: 53,00 € |
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| Delivery time from supplier's stock (ca.) 9 workdaysinfo_outline | |||||||||||
| Lieske Part No.: | 1927657 | ||||||||||
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| Mfg Part No: | QDA-428 A | ||||||||||
| Weight: | 0.123 kg | ||||||||||
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Graduated prices net
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Product information for RCS Audio-Systems QDA-428 A:
Each of the four independent channels is equipped with full DSP processing including 6-band parametric EQs, crossover filters, delay, dynamic processing, subsonic filters, phase inversion, and limiters. The user interface features a 5-button navigation pad and four rotary encoders with push function. An LCD display and RGB LEDs provide clear feedback on system and signal status.
The amplifier supports 4 analog and 2 digital inputs (AES/EBU and S/PDIF) and allows for combined use. It includes an SD card slot for storing presets and a modular slot for future network audio or control interfaces. Digital outputs are available via AES/EBU.
Its power supply is optimized for audio performance with PFC support and includes extensive protection circuits. The rugged housing makes it suitable for continuous operation in professional environments.
Technical Specifications:
- Model: QDA-428 A
- Amplifier Type: Class-D, 4-channel, digital
- Output Power (1 kHz, 1% THD):
- 4× 400 W @ 8 Ohm
- 4× 700 W @ 4 Ohm
- Output Impedance: 4–8 Ohm
- Inputs:
- 4× analog line
- 2× digital (AES/EBU, S/PDIF, 16–24 Bit / 32–192 kHz)
- Digital Output: AES/EBU 24 Bit / 48 kHz
- Audio DSP:
- 6-band parametric EQ per channel
- Crossover, Delay (0–1000 ms), Peak-RMS Limiter, Compressor
- Phase inversion (180°), Subsonic filter, Matrix routing, Mute, Gain
- Control Interface: 5-button navigation pad, 4 push-rotary encoders
- Display: Graphic LCD + 4 RGB status LEDs
- Presets: Factory and user presets; SD card slot included
- Expansion Slot: For future audio/control network integration
- Interfaces: RS-232, NC contact
- Frequency Response: 20–20,000 Hz (–3 dB)
- THD: < 0.5 % at 1 kHz
- SNR: > 100 dB
- Input Sensitivity: 0 dB (775 mV), adjustable
- Power Consumption: Max. 2500 W
- Current Consumption @ 230 V:
- 1/8 load: 1.49 A
- Full load: 10.8 A
- Power Supply: 90–250 V AC, 50–60 Hz, PowerCon In
- Housing: 48,3 cm ( 19 inch ), 2U rack mount
- Dimensions (W×H×D): 483 × 88 × 375 mm
- Weight: 8.5 kg
Scope of Delivery:
- 1× QDA-428 A amplifier
- PowerCon mains cable
- User manual
Key Features:
- 4 fully independent DSP channels with advanced audio processing
- Flexible input/output configuration (analog and digital)
- Future-ready with modular expansion slot
- Rugged build for professional installations
- User-friendly operation via onboard controls
Questions & answers
What is the delivery time of RCS Audio-Systems QDA-428 A Digital power amplifier, 2 HU, 4x 700 W (4 ohms) / 4x 400 W (8 ohms), with DSP function?
The article RCS Audio-Systems QDA-428 A Digital power amplifier, 2 HU, 4x 700 W (4 ohms) / 4x 400 W (8 ohms), with DSP function is currently not in stock but has been backordered.
According to our experience the article is ready for dispatch within 9 working days. The delivery time usually refers to 1 piece. When ordering larger quantities, we can maybe shorten the delivery time. Just send us an inquiry about the desired quantity of RCS Audio-Systems QDA-428 A to our sales team for an exact delivery time.
How can I buy the item at a lower price?
We offer you RCS Audio-Systems QDA-428 A Digital power amplifier, 2 HU, 4x 700 W (4 ohms) / 4x 400 W (8 ohms), with DSP function always at the best possible price. We can give you a discount of 2% on RCS Audio-Systems QDA-428 A Digital power amplifier, 2 HU, 4x 700 W (4 ohms) / 4x 400 W (8 ohms), with DSP function if you choose payment in advance on ordering.
In addition, you can save money with our attractive graduated prizes with every purchase. If you buy a minimum of 2 pieces of RCS Audio-Systems QDA-428 A Digital power amplifier, 2 HU, 4x 700 W (4 ohms) / 4x 400 W (8 ohms), with DSP function we can offer you a price of 4.057,31 EUR per piece. The more you buy, the cheaper the article will be.
We also offer individual prices for your needs. You can get an offer by using the form Wholesale Inquiry.