S4R - Earphones Ollo Audio - Free user manual and instructions

Brand	Ollo Audio
Model	S4R
Product type	Circum-aural studio headphone
Transducer	Dynamic, 50 mm
Impedance	32 ohms
Frequency response	20 Hz - 20 kHz
Sensitivity	111 dB SPL / 1 Vrms at 1 kHz
Magnet	Neodymium
Diaphragm	PET 25 microns
Voice coil	2 layers
Earpad material	Acoustic foam, stretchable polyurethane, velvet
Headband material	Stainless steel and nautical synthetic leather
Housing material	American walnut
Cushion diameter	90 mm
Weight	382 g
Connector	3.5mm jack with 6.3mm adapter
Cable	2 m, detachable, Y mini-jack 2.5mm connector
Features	360° rotation, self-adjusting headband, replaceable ear cushions and cable, fully repairable
Warranty	5-year limited
Cleaning	Clean with a soft, dry cloth. Do not use harsh chemicals.
Safety	Do not use at prolonged high volume (>90 dB); keep away from children; avoid moisture; do not expose to extreme heat.

Frequently Asked Questions - S4R Ollo Audio

What is the recommended sound level for mixing with the S4R?

For long mixing sessions or low-volume listening, OLLO recommends a level of 78 dB SPL. For moderate volume listening, about 85 dB SPL. Avoid exceeding 90 dB for more than one hour.

Can I use the S4R with my smartphone?

Yes, the S4R has an impedance of 32 ohms, making it compatible with most smartphones, tablets, and laptops. It comes with a 3.5mm jack cable and a 6.3mm adapter.

What to do if the cable is damaged?

The S4R cable is detachable (Y mini-jack 2.5mm connector). You can replace it with a compatible replacement cable or a custom cable. The cable warranty is 3 months.

How to clean the ear cushions and headband?

Use a soft, dry cloth. For velvet or leather cushions, avoid chemicals. The cushions are replaceable if needed.

Is the S4R suitable for recording?

The S4R is a closed-back model, ideal for recording as it limits sound leakage. It can be used in a recording booth.

What to do if I hear a rustling noise when putting on the headphones?

This may be due to a sudden change in air pressure. Place the headphones gently on your ears to allow the pressure to stabilize. Avoid compressing the cushions quickly.

Does the warranty cover damage from incorrect use?

No, the 5-year limited warranty does not cover damage from misuse, normal wear, unauthorized modifications, or cosmetic damage. It covers manufacturing defects.

Can I use the S4R with a headphone amplifier?

Yes, for best results, OLLO recommends using a dedicated headphone amplifier. The S4R also works directly with headphone outputs on sound cards.

How to correct the frequency response of my S4R?

Download the serial number of your headphones, log in to the OLLO website, and download the individual measurements. Apply an inverse curve on the equalizer of your master track, avoiding exporting it.

Is the S4R repairable?

Yes, the S4R is designed to be fully repairable with household tools. The ear cushions, cable, and other parts are replaceable.

USER MANUAL S4R Ollo Audio

Abstract icon of a computer monitor with curved lines, no text or symbols present

OWNER'S

MANUAL

OLLOaudio®

Safety first

Please read this before you do anything with your new gadget.

• Please read this document in its full.
• Remember to give this document along with the product when giving it forward to anyone else.
• Save this document in a safe place or download a copy from our website and save it in digital format to your preferred storage system.
• If the package of the product is damaged and there is a high chance that the product is damaged more than just cosmetically, please do not use the product and return it to your seller with photos of damaged package and product. Make sure to check their return policy.
• Do not use this product at high volume levels for a longer period (more than 7 minutes at 90+ dB can start damaging your hearing).
• When the use of a product can obstruct your focus and puts you in harm's way, please do not use it. For example, listening to music while driving a bicycle at levels that masks the ambient sounds.
• IF YOU HAVE A CARDIAC PACEMAKER,

please keep the product at least 10 cm (4 inches) away from your chest. Headphones speaker generate permanent magnetic fields.

- All small parts of the product, accessories, and packaging should be kept away from children and pets to prevent choking hazards.

• Do not expose the product to extreme heat or cold.
• Do not leave the product on the sun for extended periods.
• Do not use the product in wet conditions.
• The product is not water-resistant.
• Only use spare parts and accessories supplied or recommended by OLLO Audio.
• Please keep the product clean to enjoy its beauty for many years.
• OLLO Audio Ltd. (OLLO Audio d.o.o.) does not accept any liability that could arise from abuse or misuse of any of the products in the package.
• Improper use is considered when the product is not used for listening to music and sounds at moderate volume levels or used with inappropriate amplifiers.
• The product is designed and tested for moderate use on healthy individuals with healthy hearing.
• Remember to play high-quality audio to experience and enjoy our products fully.

Thank you for reading our safety recommendations.

Features

• Dynamic speakers
• Neodymium magnets
• Easy to drive even with smart devices - 32 Ohm
• Detachable connection cable can be upgraded with custom made cables
• Standard connection for any hi-fi gear (DVD, Home theatre amplifiers, smartphones, portable players, studio amplifiers) with TRS jack 3.5 or 6.3mm
• Replaceable earpads
  ■ 360 earcups rotation
  ■ Self-adjusting headband with equal weight distribution
• Fully serviceable with home tools

Signal ChainFeatures

(Cubase, Studio One, Pro Tools, etc.)

D/A Audio Interface Converter

Headphones amplifier

S Series headphones

Technical data

Speaker size	50mm
Frequency range*	Variation in frequency response in band from 20Hz to 20kHz ~13,7dB SPL (S4X 1.2) & 10,0dB SPL (S4R 1.2)
SPL/sensitivity*	108dB (S4X 1.2) & 111dB (S4R 1.2)/1Vrms@1KHz 30ohm
Impedance	~32ohm - smart devices ready
Ear pads diameter	90mm
Ear pads material	Acoustic foam, extra elasticity poly leather and velour
Ear cups material	American walnut
Headband material	Stainless steel and nautical artificial leather
Cable termination	Detachable 2 meters long Y 2.5mm mini jack
Connector	3.5mm jack with an adapter to 6.3mm jack
Weight	350g (S4X 1.2) & 382g (S4R 1.2)
Magnet type	Neodymium
Transducer type	Dynamic
Coil	2 layered
Membrane material	PET 25u
Speakers pairing	Matched speakers*
International warranty	5-year limited warranty
Trial period	30 days from delivery date when purchased directly from OLLO Audio

* IEC 60318-1 pink noise signal source, 100Hz-10kHz tolerance +/- 1dB

Use case scenarios

Studio use

Plug your S-series headphones into your dedicated headphones amplifier. If you do not have one, you can use headphones output on your sound card. For best results, we recommend using a dedicated headphones amplifier. For extra flexibility, we recommend you have one S4R model in your recording booth and one S4X in your mixing room. If you are using open-back models in a recording session, make sure your playback volume is not too high and picked up by microphones.

Using with a laptop in everyday life

We know you are going to love your new headphones for sound design and mixing so much that you will use it in everyday situations as well. If you want to connect any of the S series headphones to a laptop computer, just find the TRS mini-jack audio output. Usually, there's a small icon suggesting headphones output. If your laptop does not have a TRS output, you will have to find a suitable converter. Please refer to your laptop manufacturer's manual.

Working remotely

In case of working on a project remotely, we recommend both (or more) sides have the same monitoring experience. You can ask us for a rent offer if the project requires multiple people from all over the world. Reach out to us through our Help Desk.

Recording artists

In today's competitive music production industry, the expectations of everyone involved in a project are high. As a recording artist, you're the connecting link between the songwriter's idea and music producers. Having monitoring that is very revealing and studio or room independent is a must-have tool. With the S4R, you will have it in any studio. It's designed to fit home or pro studio signal chains. They are easy to drive, so if circumstances require very high playback volume, you can achieve it even on entry-level equipment. Plug them into headphones amplifier output that most studios will have in every recording booth. If needed, you can use 3.5 or 6.3mm jack extension cords.

Tips and tricks

Why is it important to have the right mixing volume

Two reasons, one is obviously to keep your hearing safe and healthy. The second is project dependent. When you're mixing background music that might be played quietly in a hotel lounge, you need to incorporate different instrument balance to achieve a nice balanced mix when played back quietly. The same goes for projects that will most likely be played at higher volumes. The way human hearing works was researched many times, and probably the most known research is the one by Fletcher and Munson. Our hearing has a lot less sensitivity for low frequencies; hence you need them to be a bit louder, especially with projects that are planning to be played back at low volumes. This requires that you mix (or check) at approximate levels as the final productions will be played back. To do that, you need an SPL meter, or you can calculate it using headphones' sensitivity data.

Example table of SPL levels
S4X 1.2 S4R 1.2

SPL +/- 1dB	rms @1kHz 30ohm
108dB 111dB	1V
102dB 105dB	0.5V
96dB 99dB	0.25V
90dB 93dB	0.125V
84dB 87dB	0.0625V
78dB 81dB	0.03125V

OLLO recommended SPL for mixing is 78dB for songs intended to be played back at lower volumes or for longer mixing sessions. For music that is intended for moderate volume playback we recommend mixing at about 85dB. Only check mixes at 90dB or more for loud venue playback and keep track of the time you are listening to these levels. We recommend you do not exceed 1 hour to keep your hearing safe and healthy.

How to use individual headphones measurements

All measurements after 2nd March 2020 are based on IEC 60318-1 standard issued measurement gear. If you want to correct the response of your headphones to closely match the IEC standard of equal loudness, you can do this by following these steps:

1. Find the serial number of your headphones.
2. Log in to your account on our website, where you'll be able to download the measurements or send us an inquiry (for orders after april 2020).
3. Make an inverse curve on your master channel equalizer as we show it in our blog section on our webpage.
4. Make sure you bypass it when exporting or switching monitoring options.

GRAS

Sound & Variation

DEWESoft® measurement innovation

Warranty terms and conditions

Duration

OLLO Audio Ltd offers a 5-year limited warranty to the S-series headphones and all upgrades to the newer models. For the first two years, OLLO Audio provides a limited guarantee as directed with EU directive 1999/44/EC. This limited guarantee is valid worldwide in all countries in which in each respective case the national laws do not conflict with these guarantee terms.

Consumers may be entitled to statutory rights in their resident countries, which are not restricted by these warranty terms and conditions.

OLLO Audio Ltd. reserves the right to refuse warranty claims against products or services that are obtained and/or used in contravention of the laws of any country. We cover all the costs of repair, parts exchange or product replacement and shipping costs both ways for these first two years. Excluded are custom duties. Depending on your location, there might be a way to void these as well if paperwork and documentation are properly prepared. The owner covers the cost of shipping the product to OLLO Audio's headquarters for inspection before any warranty claim is granted. If granted, costs are reimbursed. Repaired or exchanged product is sent back to the original owner via standard courier services. For the subsequent years, OLLO Audio offers a limited warranty, covering repair and parts exchange costs, excluding shipping costs and duties or levies both ways. The warranty period begins on the date of delivery of a brand new, unused product by the first end-user.

Proof of purchase

Original invoice from OLLO Audio or authorized reseller acts as proof of purchase. If you do not present it, you will be obliged to pay for any repairs or administration costs that are carried out during the claim investigation.

Warranty is transferable to the second user if the original purchase receipt is presented with the warranty claim. If OLLO Audio repairs the product, exchanges parts or replaces the product, then the guarantee claim for the defect in question or the replaced product is valid for the remaining duration of the original guarantee period.

The latest version of the limited warranty terms is available at our website and is subject to change when laws are updated.

Warranty does not cover

1. Minor faults or deviations in the quality of a product that do not affect the product's value or fitness for its intended purpose as described in EU directive mentioned in the first paragraph. *Cosmetic damage, such as very small scratches, rips in textile elements or straps, and faults resulting from improper use (e.g., operating errors, mechanical damage, incorrect operating voltage, etc.).

2. Damage caused by accident, abuse, misuse, water, flood, fire, or other acts of nature are also not covered with this warranty.

3. Damage to a product that has been modified or altered without the written permission of OLLO Audio Ltd.

4. Faults of which the purchaser was already aware at the time of purchase (B stock items for example).

5. Cable warranty is limited to three months from delivery date (permanently installed, pluggable or as accessories). Due to their nature, cables have strong exposure to wear and tear factor, which specifically depends on the intensity of use and mechanical load presented by the user.

6. Faults due to general wear and tear due to inappropriate usage are not covered.

7. Headband straps or pads, ear pads, and all parts of the product that have constant body contact while being used.

8. Damage in the product resulting from failure to comply with the users' guide for proper use and maintenance (for example air pressure warning label).

9. All warranty claims become void if the product is tampered with by unauthorized persons or repair shops. Further, this warranty is voided by removal or alteration of identification labels, serial numbers, or safety labels on the product or its parts.

OLLO Audio is in no instance liable for indirect or consequential damages of any kind - including and not restricted to loss of profits or economic disadvantages. In some legislation regions, the exclusion or limitation of indirect/consequential damages or the limitation of the duration of the guarantee is not allowed. In this case, local laws are above EU directives and do not apply to you. You need to present local laws by which you wish to process your claim and are different from the EU directive mentioned in the first paragraph.

Warranty claims

can be enforced from any country. The owner covers the cost of shipping the product to OLLO Audio's headquarters for inspection before any warranty claim is granted. Repaired or exchanged product is sent back to the original owner via standard currier services.

Consumers may be entitled to statutory rights in their resident countries, which are not restricted by these warranty terms and conditions. OLLO Audio Ltd. reserves the right to refuse warranty claims against products or services that are obtained and/or used in contravention of the laws of any country.

All repairs have a 90-day warranty. To obtain warranty service, submit a warranty claim to OLLO Audio's e-mail: [e-mail] or via Help Desk.

Describe the problem you're experiencing, and if you can, add some pictures or videos. OLLO Audio's team will evaluate your situation and will provide further instructions to you by e-mail.

To obtain warranty service, you will need an original or copy of the sales receipt from the original retailer.

Warranty claim quick guide

1. Send the description of the problem with pictures, videos or sound samples to [e-mail] or through our Help Desk.
2. Wait for further instructions by OLLO Audio. You'll receive an e-mail with the next steps.
3. Send the product to OLLO Audio's headquarter in the EU. OLLO Audio covers shipping of the repaired product back to the owner with standard courier services.
4. We will repair the headphones in up to 45 days. If the product is not repairable, we'll grant you a new product currently available at the same quality level in case your product is no longer being produced.
5. If in doubt, ask. Don't worry. We're human.

Product handling and care

When you listen - air is trapped between your head and the speaker diaphragm. Acoustics design of the earcups prevents air from leaving the pressure zone created. In case of sudden pressure changes created by quickly pressing earcups on to your ears, you might hear the speaker membrane mechanical crinkling.

We strongly recommend being cautious when handling any headphones. Trapped air can create high pressure, and sudden pressure changes could damage the membranes, and our warranty does not cover this. We recommend slow and steady movement to allow the air pressure to stabilize.

For traveling, make sure the earpads are not covered or sealed by a flat surface. For example, having them in between a laptop and a notebook. When you walk, the mass of the laptop will create sudden air pressure changes and could distort the membranes.

(Cubase, Studio One, Pro Tools, ecc.)

measurement innovation

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Studio-Einsatz

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Musiker(innen)

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Studioanvändning

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Längd

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Uso en Estudio

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