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 ) plus delivery charges |
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| Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline | |||||||||||
| Lieske Part No.: | 1927657 | ||||||||||
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| Mfg Part No: | QDA-428 A | ||||||||||
| Weight: | 0.12 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 in stock
According to our experience the article is ready for dispatch within 3 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 graduation 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 4.089,94 EUR per piece. The more you buy, the cheaper the article will be.
You can also send us a price proposal for your desired quantity 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 via the form price proposal. Enter your name, contact details, price and quantity you need. Our sales team will then send you a good quotation immediately.
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