# AUDAC EPA104 audio amplifier 4.0 channels Class D THD 0.1%

**URL:** https://aio.lv/en/product--audac-epa104--10840321
**Data updated:** 2026-03-10 10:50 (EET)
**Category:** AV Receivers & Amplifiers
**Manufacturer:** Audac
**Manufacturer code:** EPA104
**EAN:** 5414795039155
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 766.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 633.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--audac-epa104--10840321

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The AUDAC EPA104 is a Class D audio amplifier featuring 4 channels and a total harmonic distortion of only 0.1%. It operates on an AC input voltage of 100-240 V and consumes 188 W of power. Designed for efficient performance, it includes clamp terminals for reliable speaker connectivity, making it ideal for various audio applications.

## Long description

The AUDAC EPA104 audio amplifier 4.0 channels Class D THD 0.1% is a compact, energy-efficient four-channel Class D amplifier designed for both fixed and mobile installations. It delivers four independent channels that can be configured as two stereo pairs, operates from an AC input of 100–240 V and has a total harmonic distortion of 0.1%. The unit is passively cooled and occupies a single rack space, offering low maintenance and reliable operation. Signal inputs use balanced XLR connectors with XLR link-through outputs, while speaker outputs use clamp-style terminal blocks. The amplifier also features automatic standby when no audio is detected and several protection circuits for safe operation.
Advantages
The amplifier’s Class D design provides high efficiency and reduced heat generation, allowing passive cooling without fans and minimizing maintenance. Its compact single-rack format and relatively low weight support easy installation in both permanent and mobile setups. Balanced XLR inputs with link-through outputs simplify signal routing, while clamp terminal speaker outputs ensure stable connections. Integrated protection against DC faults, short circuits, overheating and overload enhances long-term reliability. Automatic standby reduces power consumption when no audio signal is present.
Suitable for
 Small to medium stereo systems requiring a compact multi-channel amplifier
 Mobile DJ setups and portable PA systems where low weight and single-rack size matter
 Installed audio in meeting rooms, classrooms or retail spaces
 Two independent stereo zones or applications combining full-range and bass cabinets
Key specifications
 Amplifier class: Class D
 Channels: 4 independent channels (configurable as two stereo pairs)
 Total harmonic distortion (THD): 0.1%
 AC input voltage: 100–240 V
 Power consumption: nominal 188 W
 Standby consumption: \< 1 W when no audio is detected
 Cooling: passive (fanless)
 Inputs: balanced XLR connectors with XLR link-through outputs
 Speaker outputs: clamp/terminal block connectors
 Form factor: single rack space, compact and lightweight
How to use
Install the amplifier in a standard 19" rack space or place it on a stable shelf for mobile use. Connect balanced audio sources to the XLR input connectors and, if required, use the XLR outputs to link signal to additional units. Connect speakers to the clamp terminal block outputs, ensuring correct polarity and appropriate speaker impedance. Power the unit from a 100–240 V AC mains supply. The amplifier will automatically enter standby when no audio signal is detected; normal operation resumes automatically when signal is present. Observe the built-in protection indicators and allow adequate ventilation around the unit despite its passive cooling design.
Usage recommendations
 For reliable long-term operation, use balanced audio cabling for input signals, match speaker impedance to the amplifier’s specifications, and avoid obstructing airflow around the chassis. In installations with bass cabinets, use the amplifier’s stereo pairing and crossover capabilities to allocate channels appropriately between full-range and low-frequency drivers.

## Specifications

| Feature | Value |
|---|---|
| Material | Steel |
| RMS power output per channel (4 Ohm) | 100 W |
| RMS power output per channel (8 Ohm) | 50 W |
| Amplifier class | D |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 4.5 kg |
| Height | 44 mm |
| Width | 482 mm |
| Depth | 330 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 0 - 95 |
| Operating temperature (T-T) | 0 - 40 |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 188 W |
| Power consumption (standby) | 0.8 W |
| AC input frequency | 50 - 60 |
| AC input voltage | 100-240 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Speakers connectivity type | Clamp terminals |

### Audio

| Feature | Value |
|---|---|
| Signal-to-Noise Ratio (SNR) | 90 dB |
| Audio output channels | 4.0 |
| Total Harmonic Distortion (THD) | 0.1 % |
| Input impedance | 12000 Ω |
| Crosstalk (1kHz) | 70 dB |

### Technical details

| Feature | Value |
|---|---|
| Product colour | Black |
| Sustainability certificates | ENERGY STAR |

## FAQ

### How much does the AUDAC EPA104 audio amplifier cost, and is it available for purchase?

The price is 766.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 02.07.2026 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can AUDAC EPA104 audio amplifier 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 Audac 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 Audac 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: weight, audio output channels, 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.

## Image

https://aio.lv/img/cache/product/10840321/60198553_large.webp