# AV receiver Onkyo TX-SR3100 — 5.2-channel Surround, 80 W per channel, HDMI x4, Bluetooth, Dolby Atmos/ DTS:X — Black

**URL:** https://aio.lv/en/product--onkyo-tx-sr3100--11003045
**Data updated:** 2026-03-11 11:58 (EET)
**Category:** AV Receivers & Amplifiers
**Manufacturer:** Onkyo
**Manufacturer code:** TX-SR3100
**EAN:** 4573211155600
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 437.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 361.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--onkyo-tx-sr3100--11003045

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 7.37 EUR |

## Summary description

Onkyo TX-SR3100 is a 5.2-channel surround AV receiver delivering 80 W per channel (20–20 kHz, 8 Ω). It supports HDMI (4 inputs) with up to 3840×2160 and 7680×4320 resolutions and HDR formats including Dolby Vision and HDR10+. Audio decoding includes Dolby Atmos, DTS:X and Dolby Surround. Wired speaker connection via binding posts, 6.3 mm headphone jack, Bluetooth for wireless streaming and FM radio reception. Suitable for home cinema and multi‑channel music playback.

## Long description

Onkyo TX-SR3100 is a 5.2-channel surround AV receiver delivering 80 W per channel (20–20 kHz, 8 Ω). Designed for home cinema and multi-channel music playback, it provides HDMI inputs, Bluetooth streaming, advanced audio decoding and room calibration to adapt sound to your listening environment. The receiver supports modern HDR video formats and high-resolution HDMI connections suitable for 4K and 8K sources, while wired speaker connections and a headphone output enable flexible setup options.
Advantages
The TX-SR3100 combines 5.2-channel amplification with Dolby Atmos, DTS:X and Dolby Surround decoding to reproduce immersive three-dimensional sound fields. Four HDMI inputs support high video resolutions and Dynamic HDR formats for clear, color-accurate images, and Bluetooth allows straightforward wireless audio streaming from mobile devices. AccuEQ room calibration and Vocal Enhancer improve clarity by adapting the system to room acoustics and emphasizing dialogue, while Music Optimizer helps restore detail from compressed audio files.
Suitable for
 Home cinema setups with a 5.2 speaker layout
 Multi-channel music playback and streaming
 Gaming systems requiring low-latency, high-resolution HDMI (4K/8K support)
 Users who want simplified room calibration and clearer dialogue
Key specifications
 Channels: 5.2 surround amplification, 80 W per channel (20–20 kHz, 8 Ω)
 HDMI inputs: 4 supporting up to 3840×2160 and 7680×4320 resolutions and Dynamic HDR formats
 Audio decoding: Dolby Atmos, DTS:X, Dolby Surround
 Wireless: Bluetooth for audio streaming
 Wired outputs/inputs: binding posts for speakers, 6.3 mm headphone jack
 Room calibration: AccuEQ automatic calibration
 Special modes: Vocal Enhancer, Music Optimizer, Dolby Atmos Height Virtualizer, Klipsch Optimize Mode
 Color: Black
 Weight: 8.4 kg
How to use
Connect your front, center, surround and subwoofer speakers to the receiver's binding posts according to the 5.2 layout. Use HDMI inputs to connect video sources such as Blu-ray players, game consoles or streaming devices. After making physical connections, run the AccuEQ room calibration to measure speaker distances and levels; this will optimize output for your room. Pair a phone or tablet via Bluetooth for direct wireless playback, or plug headphones into the 6.3 mm jack for private listening. Select the appropriate decoding or DSP modes (Dolby Atmos, DTS:X, Music Optimizer, Vocal Enhancer) depending on source material and listening preference.
Usage recommendations
For best performance, use high-quality HDMI cables rated for the required resolution and refresh rate, position speakers according to a typical 5.2 layout with attention to the listener’s seating position, and run AccuEQ each time you change speaker placement. Enable Vocal Enhancer for dialogue-heavy content and Music Optimizer when playing compressed audio files. Keep firmware updated to ensure compatibility with the latest HDMI and HDR features.

## Specifications

### Technical details

| Feature | Value |
|---|---|
| Display | TFT |
| Remote control included | No |
| Product colour | Black |
| Audio amplifier | Yes |
| Audio decoders | DTS:X, Dolby Atmos, Dolby Surround |
| HDCP | Yes |
| Amplifier output power | 80 W |
| Audio Return Channel (ARC) | Yes |
| AirPlay | No |
| HDCP version | 2.3 |
| Apple docking | No |

### Audio

| Feature | Value |
|---|---|
| Audio output channels | 5.2 |
| Total Harmonic Distortion (THD) | 0.08 % |
| Frequency range | 20 - 20000 |
| Receiver type | Surround |
| Power output per channel (20-20KHz@8 Ohm) | 80 W |
| Power output per channel (1KHz@6 Ohm) | 155 W |

### Outputs

| Feature | Value |
|---|---|
| Headphone outputs | 1 |
| Headphone connectivity | 6.3 mm |
| Number of HDMI outputs | 1 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired & Wireless |
| Phono inputs (RCA) | 3 |
| FM antenna ports quantity | 1 |
| Speakers connectivity type | Binding post |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 465 W |
| AC input frequency | 50 - 60 |
| AC input voltage | 220 - 240 |

### Inputs

| Feature | Value |
|---|---|
| HDMI in | 4 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 8.4 kg |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | No |
| Bluetooth | Yes |
| Wi-Fi | No |

### Optical drive

| Feature | Value |
|---|---|
| Optical drive included | No |

### Storage

| Feature | Value |
|---|---|
| Card reader integrated | No |

### Video

| Feature | Value |
|---|---|
| Supported graphics resolutions | 3840 x 2160, 7860 x 4320 |
| 3D | No |
| High Dynamic Range (HDR) technology | Dolby Vision, High Dynamic Range 10+ (HDR10 Plus) |

### Radio

| Feature | Value |
|---|---|
| Supported radio bands | FM |

## FAQ

### How much does the Onkyo TX-SR3100 AV receiver 5.2 ch cost, and is it available for purchase?

The price is 437.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 28 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Onkyo TX-SR3100 AV receiver 5.2 ch be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Onkyo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Onkyo service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: audio output channels, receiver type, hdmi in, digital audio optical in, weight, ethernet lan, wi-fi, bluetooth, audio decoders, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Onkyo TX-SR3100 AV receiver 5.2 ch?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11003045/67493765_large.webp