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header-product Headphones Koss PRO4AA wired supra-aural 10–25000 Hz, 3 m cable, beige/black
120.99 €

Headphones Koss PRO4AA wired supra-aural 10–25000 Hz, 3 m cable, beige/black

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Headphones Koss PRO4AA wired supra-aural 10–25000 Hz, 3 m cable, beige/black

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Headphones Koss PRO4AA wired supra-aural 10–25000 Hz, 3 m cable, beige/black

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Short description

Koss PRO4AA are wired supra-aural headphones designed for stage and studio use. They deliver a frequency response of 10–25,000 Hz for wide-range sound reproduction and come with a 3 m cable for freedom of movement during performances or long sessions. Available in beige and black, they suit monitoring, rehearsals and live sound applications.
Available at price 120.99 €: 5 pcs.
Total available for order: 15 pcs.
Warranty: 2 Years
SKU: 1218085
Manufacturer: Koss
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
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03.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.85 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
03.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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36 months installment: from 3.36 euros per month
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Product information

Description

Koss PRO4AA wired supra-aural headphones provide monitoring-grade sound for stage and studio applications. Designed for use during rehearsals, live performances and recording sessions, these headphones feature a wide frequency response from 10 to 25,000 Hz that captures low-end depth and high-frequency detail. The supra-aural ear coupling and beige/black finish combine a compact profile with a neutral appearance, while the 3 m cable offers extended reach for performers and engineers working across a stage or studio space.

Advantages

The Koss PRO4AA delivers broad frequency coverage and consistent response suited to monitoring tasks. The wired connection preserves signal integrity for critical listening. The supra-aural design keeps the headphones relatively lightweight and easy to position, and the 3 m cable reduces the need for adapters or extensions in most rehearsal and stage setups. The two-tone colour option allows matching with different equipment and apparel.

Suitable for

  • Stage monitoring for musicians and performers
  • Studio tracking and reference listening
  • Rehearsals and soundchecks
  • Live sound engineering and FOH/monitor work

Key specifications

  • Ear coupling: Supra-aural
  • Connectivity: Wired
  • Frequency response: 10–25,000 Hz
  • Cable length: 3 m
  • Colours: Beige and black

How to use

Connect the headphones to a headphone output of a mixing console, audio interface or amplifier using the provided cable. Position the supra-aural pads so they sit comfortably on the ears, ensuring a stable fit for accurate monitoring. For stage use, route the cable to avoid tangling or interference with instrument movement. For studio use, confirm gain staging on the source device to avoid clipping or excessive levels while maintaining proper monitoring volume.

Usage recommendations

Use the 3 m cable to position yourself at a comfortable distance from the console or amplifier; avoid high-volume listening for extended periods to prevent hearing fatigue. For live situations, secure the cable to clothing or stage gear to reduce accidental disconnection or microphonic noise. Store the headphones in a dry place when not in use to preserve pads and cable integrity.

Specifications

Microphone type: The characteristics of the microphone bulit into the device in terms of the reception of signals from all or just one direction, i.e. omnidirectional (better for concerts and the like vs unidirectional, more suitable for voice recording.
Not available
Ear coupling: Ear coupling describes the way in which headphones or earphones stay attached to, or inside, the ear. There are three common types of ear coupling: circumaural, supra-aural and intra-aural. Circumaural headphones enclose your ears with large pads that suppress external noise. Supra-aural headphones are typically more lightweight and sit on top of the ears with small pads. Intra-aural headphones come in two basic designs and neither style sits on the head itself. The first are ear buds, which sit just outside of the ear canal, on top of your ear lobes. The second type is actually inserted directly into the ear canal and offers some external noise suppression.
Supraaural
Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired
Recommended usage: What the product should be used for, and how it should be used (e.g. ambient temperature).
Stage/Studio
Product type: The sub-category of the product.
Headphones
Product colour: The colour e.g. red, blue, green, black, white.
Beige, Black
All features

Microphone

Microphone type: The characteristics of the microphone bulit into the device in terms of the reception of signals from all or just one direction, i.e. omnidirectional (better for concerts and the like vs unidirectional, more suitable for voice recording.
Not available

Headphones

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 %
Headphone sensitivity:
95 dB
Impedance: The effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.
250 Ω
Headphone frequency: The range of frequencies (low to high sounds) that the headphones can produce.
10 - 25000
Ear coupling: Ear coupling describes the way in which headphones or earphones stay attached to, or inside, the ear. There are three common types of ear coupling: circumaural, supra-aural and intra-aural. Circumaural headphones enclose your ears with large pads that suppress external noise. Supra-aural headphones are typically more lightweight and sit on top of the ears with small pads. Intra-aural headphones come in two basic designs and neither style sits on the head itself. The first are ear buds, which sit just outside of the ear canal, on top of your ear lobes. The second type is actually inserted directly into the ear canal and offers some external noise suppression.
Supraaural

Ports & interfaces

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired

Performance

Cable length: How long the cable is.
3 m
Product colour: The colour e.g. red, blue, green, black, white.
Beige, Black
Recommended usage: What the product should be used for, and how it should be used (e.g. ambient temperature).
Stage/Studio
Product type: The sub-category of the product.
Headphones

Description

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Stock data
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Customer reviews

Customer questions

FAQ

How much does the Headphones Koss PRO4AA wired supra-aural cost, and is it available for purchase?

The price is 120.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 Wednesday 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Headphones Koss PRO4AA wired supra-aural 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 Headphones Koss PRO4AA wired supra-aural 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 Koss 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 Koss 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: microphone type, ear coupling, connectivity technology, recommended usage, product type, 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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