# Audio transformer Omnitronic ELA-T20OD 20W 100V for public address systems

**URL:** https://aio.lv/en/product--omnitronic-80711410--3303112
**Data updated:** 2026-02-12 09:51 (EET)
**Category:** Electronics Accessories
**Manufacturer:** Omnitronic
**Manufacturer code:** 80711410
**EAN:** 4026397612103
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 62.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 51.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--omnitronic-80711410--3303112

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.99 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Omnitronic ELA-T20OD is a 20W 100V audio transformer designed for use in public address and paging systems. It provides impedance matching between amplifiers and distributed 100V speaker lines, enabling connection of low-impedance speakers to long-line installations. Suitable for commercial and institutional audio setups where stable power transfer and compatibility with 100V networks are required.

## Long description

The Omnitronic ELA-T20OD 20W 100V audio transformer is built for integrating low-impedance loudspeakers into distributed 100V public address and paging systems. It performs impedance matching between amplifiers and long 100V speaker lines, enabling stable power transfer and consistent audio distribution across commercial and institutional installations. The compact design and fixed 20-watt rating make it appropriate for individual speakers or small speaker clusters fed from a central 100V amplifier line.
Advantages
The transformer offers reliable impedance matching to reduce mismatches and preserve amplifier stability when connecting low-impedance speakers to a 100V bus. Its 20W power handling provides predictable performance for small to medium coverage zones, while the 100V tap simplifies wiring and allows multiple units to share a common amplifier output. The unit is engineered for steady operation in typical indoor public address environments and helps maintain level consistency across distributed speakers.
Suitable for
Retail stores, restaurants and cafés with distributed ceiling or wall speakers
Schools, offices and institutional paging systems
Small conference rooms, lobbies and common areas requiring centralized audio distribution
Retrofit installations where low-impedance speakers must be adapted to a 100V line
Key specifications
Rated power: 20 W
Primary voltage: 100 V line compatibility
Function: impedance matching for low-impedance speakers to 100 V systems
Application environment: indoor public address and paging systems
Mounting: in-line/inline or transformer box integration (compact form factor)
How to use
Install the Omnitronic ELA-T20OD inline between the speaker and the 100V amplifier line, connecting the transformer's primary side to the 100V output and the secondary to the speaker terminals. Ensure the transformer's 20W rating matches or exceeds the speaker load and select wiring and connectors rated for the installation environment. Observe correct polarity when connecting to maintain phase coherence across multiple speakers. After wiring, test each speaker channel at low level and gradually increase to the required operating level while monitoring for distortion or overheating.
Usage recommendations
Match the transformer's rated power to the speaker and zone requirements, allow headroom to avoid saturating the transformer, and keep wiring runs tidy to minimize hum and interference. For larger zones or multiple speakers per transformer, calculate the combined load to ensure the 20W rating is not exceeded. When in doubt, consult a qualified audio installer to verify compatibility with the existing 100V amplifier and speaker arrangement.

## FAQ

### How much does the Omnitronic ELA-T20OD 20W 100V audio transformer cost, and is it available for purchase?

The price is 62.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 20.07.2026 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. All transactions are 100% secure and encrypted.

### 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 Omnitronic 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 Omnitronic 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

## Image

https://aio.lv/img/cache/product/3303112/59848048_large.webp