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header-product AUDAC EPA104 audio amplifier 4.0 channels Class D THD 0.1%
678.49 €

AUDAC EPA104 audio amplifier 4.0 channels Class D THD 0.1%

AUDAC EPA104 audio amplifier Photo 1
AUDAC EPA104 audio amplifier Photo 2
AUDAC EPA104 audio amplifier Photo 1
AUDAC EPA104 audio amplifier Photo 2
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Short 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.
Available at price 678.49 €: 6 pcs.
Total available for order: 12 pcs.
Warranty: 2 Years
SKU: 10840321
Manufacturer: Audac
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
29.09.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
02.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 4.50 kg)
Parcel couriers
Unisend LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
02.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities
36 months installment: from 18.85 euros per month
Leasing for legal entities: from 23.61 euros per month
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Product information

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

Speakers connectivity type: The type of connection used for the speakers e.g. RCA connector.
Clamp terminals
Audio output channels: An audio output channel is an electric circuit which acts as a path for a signal produced by a device. A device may have several audio output channels.
4.0
Product colour: The colour e.g. red, blue, green, black, white.
Black
All features
Material: The material from which a thing is or can be made e.g. wood, plastic.
Steel
RMS power output per channel (4 Ohm):
100 W
RMS power output per channel (8 Ohm):
50 W
Amplifier class: An electronic amplifier, amplifier, or (informally) amp is an electronic device that increases the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. Power amplifier circuits (output stages) are classified as A, B, A/B and C for analog designs, and class D and E for switching designs based on the proportion of each input cycle (conduction angle), during which an amplifying device is passing current.
D

Operational conditions

Operating relative humidity (H-H):
0 - 95
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 40

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
4.5 kg
Height: The measurement of the product from head to foot or from base to top.
44 mm
Depth: The distance from the front to the back of something.
330 mm
Width: The measurement or extent of something from side to side.
482 mm

Power

Power consumption (typical): Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
188 W
Power consumption (standby): The amount of electricity that is consumed when the product is on standby.
0.8 W
AC input frequency:
50 - 60
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100-240

Technical details

Product colour: The colour e.g. red, blue, green, black, white.
Black
Sustainability certificates:
ENERGY STAR

Ports & interfaces

Speakers connectivity type: The type of connection used for the speakers e.g. RCA connector.
Clamp terminals

Audio

Signal-to-Noise Ratio (SNR): This is the ratio of signal intensity to noise intensity.
90 dB
Crosstalk (1kHz):
70 dB
Input impedance:
12000 Ω
Total Harmonic Distortion (THD): Total harmonic distortion is a measure of non-linear harmonic distortion and is given in %. Non-linear harmonic distortions are signals which were not present in the original before the signal was converted by the headphones. These unwanted signals are caused by the diaphragm, whose movements do not precisely move in time with the electric signals that cause it to move. Unfortunately, this is a feature of all electroacoustic transducers. Although it cannot be completely eliminated, suitable steps can be taken to minimise it. However, the user is not interested in why this distortion takes place but in how great the level of distortion must be for it to become perceptible. According to the findings of several research projects, a total harmonic distortion of 1% in the frequency range of 100 to 2000 Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies at 10%.
0.1 %
Audio output channels: An audio output channel is an electric circuit which acts as a path for a signal produced by a device. A device may have several audio output channels.
4.0

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
WH323 6 29.09.2026 Best delivery
678.49 € Best price
WH353 6 05.10.2026
771.99 €
678.49 €
Stock: 6
Delivery Date: 29.09.2026 Best delivery
Warehouse: WH323
771.99 €
Stock: 6
Delivery Date: 05.10.2026
Warehouse: WH353

Customer reviews

Customer questions

FAQ

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

The price is 678.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 29.09.2026 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. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the AUDAC EPA104 audio amplifier online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: speakers connectivity type, 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.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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