Headphones Koss Pro4S

Name: Headphones Koss Pro4S 184474
Brand: Koss
SKU: 1217639
Price: 116.49 EUR
Availability: InStock

Shop for gifts early

Save time and money with our discounts!

Fast shipping

Keep track of price changes You keep track of price changes

Scan qr code below, or type in manually: {{secretKey}}

Forgot password? Registration

Short description

The Koss Pro4S headphones are designed for stage and studio use, featuring a wired connection. With a frequency range of 10 - 25000 Hz and a cable length of 1.4 m, they provide excellent sound quality. The sleek black and silver design adds a professional touch to your audio setup.

Available at price 116.49 €: 4 pcs.

Total available for order: 8 pcs.

Warranty: 2 Years

SKU: 1217639

Manufacturer: Koss

Learn more

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

All delivery methods Hide details

Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

Thursday {{selectedOffer.officeDeliveryString}}

free

Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

13.10.2026 {{selectedOffer.courierDeliveryString}}

From 4.99 € (Weight: 0.74 kg)

Parcel couriers

Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa

13.10.2026 {{selectedOffer.parcelStationDeliveryString}}

From 1.99 €

More about delivery methods

pay in 3 equal parts

today

0 €

afterward

3 mth. х 38.83 €

overpayment

0 €

All payment Methods Hide details

All payment Methods:

Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment

36 months installment: from 3.24 euros per month

More about payment methods

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

The Koss Pro4S Studio Headphone is a full-size, over-ear wired headphone designed for professional studio and stage use. Tuned with the new SLX40 element for reference listening, it delivers accurate, unbiased sound reproduction. The headphones use a D-profile earcup with memory foam cushions and aluminum cups wrapped in soft protein leather for a balance of durability and comfort. A detachable cord with dual-entry and pass-through capability, a fold-flat design, and included carrying case make the Pro4S suitable for mobile monitoring and daily professional use.

Advantages

The Pro4S offers studio-oriented sound from Koss SLX40 elements, a D-profile earcup that creates a consistent acoustic seal, and a rugged metal-on-metal assembly for increased durability. Comfort is provided by memory foam cushions and a padded metal headband covered in breathable mesh. The detachable cable with dual-choice entry enables flexible setup and pass-through listening, while the fold-flat design and carrying case support portability.

Suitable for

Studio monitoring and mixing
Stage and live sound monitoring
Critical listening and reference checks
Mobile engineers and musicians who need portable, durable headphones

Key specifications

Type: Full-size, circumaural (over-ear) headphones
Driver element: Koss SLX40 (studio reference tuning)
Connectivity: Wired, detachable cable with dual-entry
Frequency response: 10–25,000 Hz
Cable length: 1.4 m
Wearing style: Head-band
Colour: Black, Silver
Construction: Aluminum earcups, memory foam cushions, metal headband

How to use

Connect the detachable cable to the preferred earcup input; the opposite earcup then functions as an output for pass-through or daisy-chaining. Place the D-profile earcups over the ears to achieve a natural seal and adjust the headband for a comfortable fit. For studio or stage use, connect to your headphone amplifier, mixer, or audio interface using the appropriate adapter if required.

Usage recommendations

For accurate reference monitoring, allow a short break-in period and listen at moderate levels when comparing mixes. Store the headphones folded flat in the supplied carrying case when transporting to protect the earcups and assembly.

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.: Circumaural
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.: Black, Silver
Wearing style: The way in which the device is worn.: Head-band

All features

Packaging content

Quantity: The number of products there are.: 1
Carrying case: A case in which the product can be carried.: Yes

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

Headphone sensitivity:: 99 dB
Impedance: The effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.: 35 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.: Circumaural

Ports & interfaces

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

Performance

Detachable cable:: Yes
Cable length: How long the cable is.: 1.4 m
Foldable: The product can be folded and so can be stored/transported more easily.: Yes
Product colour: The colour e.g. red, blue, green, black, white.: Black, Silver
Recommended usage: What the product should be used for, and how it should be used (e.g. ambient temperature).: Stage/Studio
Wearing style: The way in which the device is worn.: Head-band
Product type: The sub-category of the product.: Headphones

Hide Show all

Description

Machine translation. Load original

Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

Warehouse	Stock	Delivery to the store	Store Price
BT5	4	Thursday Best delivery	Fast shipping 116.49 €
WH353	4	20.10.2026	125.99 €

Fast shipping

116.49 €

Stock: 4

Delivery Date: Thursday Best delivery

Warehouse: BT5

125.99 €

Stock: 4

Delivery Date: 20.10.2026

Warehouse: WH353

Customer reviews

Show all reviews

Customer questions

FAQ

How much does the Headphones Koss Pro4S cost, and is it available for purchase?

The price is 116.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 Thursday 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 Pro4S 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 Pro4S 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, wearing style, 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.

Show all questions

Headphones Koss Pro4S

Short description

Product information

Description

Advantages

Suitable for

Key specifications

How to use

Usage recommendations

Specifications

Packaging content

Microphone

Headphones

Ports & interfaces

Performance

Description

Similar products

Product comparison

Customer reviews

Customer questions

How much does the Headphones Koss Pro4S cost, and is it available for purchase?

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

What payment options are available?

Can Headphones Koss Pro4S be purchased with a lease?

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

What is the warranty period?

Can the product be returned after purchase?

Where should I contact for warranty service?

How can I tell if this product suits my needs?