

KASPER Avalon X520
MRP - Rs. 49,900
KASPER Avalon X520 digital audio video amplifier: 500 W total, HDMI 3 in / 1 out, Bluetooth, USB, SD, optical and coaxial inputs, 4-16 Ω. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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Amplifier
| Output | 4‑16 Ω |
| Total output power | 500 W |
| Main channel output power | 100 W x 2 |
| Centre channel output power | 80 W |
| Surround channel output power | 60 W x 2 |
| Bass channel output power | 100 W |
| SNR | > 75 dB |
| THD | Less than 0.5 % at 1 kHz |
| Input sensitivity | < 500 mV |
Frequency response and tone
| Front channel | 10 Hz - 40 kHz (+2 dB) |
| Surround and centre channels | 10 Hz - 40 kHz (+2 dB) |
| Bass channel | 10 Hz - 200 Hz (±2 dB) |
| Treble adjustment | Front channel ±14 dB (10 kHz) |
| Bass adjustment | Front channel 14 dB (100 Hz) |
Physical
| Power requirement | AC 220 V ±10 %, 50 Hz ±1 Hz |
| Power consumption | 720 W |
| Product dimensions (W x D x H) | 440 x 360 x 90 mm |
| Gross weight | 9 kg |
Product overview
The KASPER Avalon X520 digital audio video amplifier is a powerful and feature-rich AV receiver designed to deliver immersive surround sound for home entertainment.
With advanced audio decoding and multiple connectivity options, it provides a complete solution for high-quality music and cinematic experiences: 500 W total output across main, centre, surround and bass channels, HDMI 3 in / 1 out, Bluetooth, USB playback, SD card support and optical and coaxial inputs.
| Total output power | 500 W |
| Inputs / output | HDMI 3/1 |
| Speaker systems | 4‑16 Ω |
| Gross weight | 9 kg |
Key features
- High-power multi-channel output
- Supports 4-16 Ω speaker systems
- Clear audio with low distortion
- Wide frequency response range
- Bass and treble adjustment controls
- Multiple input options for flexibility
- Multi-channel surround decoding
- LED display screen and remote control
Connections
HDMI 3 in / 1 out, Bluetooth wireless, USB playback, SD card support and optical and coaxial inputs (KASPER catalogue). The front panel shows two microphone inputs (MIC 1, MIC 2), an SD/MMC card slot, a USB port, a VOLUME knob and the marking '5.2 CHANNEL AVR'.
In the box
- Avalon X520 AV amplifier
- Remote control (shown with the unit in the official KASPER picture)
KASPER Avalon X520: frequently asked questions
How much power does it deliver?
500 W total: main channels 100 W x 2, centre 80 W, surround 60 W x 2, bass channel 100 W.
Which speakers can I connect?
Speaker systems from 4 to 16 Ω.
What power does it need?
AC 220 V ±10 %, 50 Hz ±1 Hz; power consumption 720 W.
Where can I buy the KASPER Avalon X520 in India?
The KASPER Avalon X520 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Home theatre
A 5-channel surround system for films and gaming.
Connections
| Connect | To |
|---|---|
| Media player / console | HDMI input |
| TV | HDMI output |
| Front, centre, surround speakers and subwoofer | Speaker and bass outputs |
Setup
- Connect the sources to the HDMI inputs.
- Connect the TV to the HDMI output.
- Connect the speakers and set the levels.
Tip: Total output 500 W; speakers 4-16 Ω.
Workflow 2: Music in the living room
Music from phones, USB drives and SD cards.
Connections
| Connect | To |
|---|---|
| Phone | Bluetooth |
| USB drive / SD card | Front USB port / SD slot |
Setup
- Pair the phone or insert the media.
- Select the source.
- Adjust volume, bass and treble.
Tip: Treble and bass adjustment ±14 dB on the front channels.








