Harman Kardon Onyx Studio 8 Refurbished Wireless Speaker

Refurbished | Harman Kardon | 50W Wireless Speaker | Bluetooth 5.2 | Wireless Stereo Boost | Rechargeable

The Harman Kardon Onyx Studio 8 refurbished is a premium wireless speaker designed to be seen as much as heard: a curved, fabric-wrapped body that looks like a piece of home audio, with a 50W sound meant to fill a living room. Available in Kenya from Mega Store Kenya as a tested, refurbished unit, this page is for shoppers searching "Harman Kardon Onyx Studio 8 Kenya," "refurbished Bluetooth speaker Nairobi," "premium wireless speaker Kenya," "50W Bluetooth speaker Kenya," or "Onyx Studio 8 price."

If you want the sound and styling of a Harman Kardon speaker without paying for a brand-new one, a refurbished Onyx Studio 8 is a sensible way in. This page explains what the speaker offers, what to expect from its sound, battery and connections, what "refurbished" means at Mega Store Kenya, and how to check your unit when it arrives.

Key specs at a glance

Specifications come from Harman Kardon's published information. We confirm the details of each refurbished unit before you pay, including ports, colour and what is in the box.

What's in the box

A refurbished speaker may not come in its original retail box. We confirm what is included before you order:

• The Harman Kardon Onyx Studio 8 speaker
• A power or charging cable, so you can power it up right away
• Any other accessories available with the unit

If you need a particular accessory, ask us on WhatsApp and we will tell you what is available in our accessories category.

Why the Onyx Studio 8 is a speaker people notice

Most Bluetooth speakers are black cylinders or rectangles that people hide behind a plant. The Harman Kardon Onyx Studio 8 does the opposite. Its convex, sculpted shape and fabric finish make it a conversation piece, and it is designed to sit in plain view on a shelf, a sideboard or a coffee table. That alone sets it apart in a market full of forgettable plastic.

The design would not matter if the sound did not back it up, but Harman Kardon is a name with a long history in home and car audio, and the Onyx line is its premium wireless range. The Onyx Studio 8 delivers 50W of RMS power per Harman Kardon, enough to fill a lounge, a bedroom party or a covered patio with a warm, full sound. As a refurbished unit, it gives you the same design and tuning at a lower cost.

Key features explained

50W of sound

The Onyx Studio 8 is rated at 50W RMS, with a frequency response of 50 Hz to 20 kHz (-6 dB), per Harman Kardon. RMS is a measure of continuous power, which is more meaningful than the peak figures some brands print. The frequency range means the speaker can reproduce deep-ish bass down to around 50 Hz, which is lower than most small portable speakers manage, up to the top of human hearing. In daily use you hear clear vocals, a smooth treble and bass that is firm without being boomy.

Bluetooth 5.2

Bluetooth 5.2, per Harman Kardon, is a recent version with good range and a stable connection. The speaker pairs with phones, tablets and laptops, and reconnects automatically after the first pairing. Typical Bluetooth range is around ten metres in open space, and walls reduce it. For music, you will not notice delay. For video on some devices, Bluetooth can introduce a small lag, which is why we mention the wired option below.

Wireless Stereo Boost

Harman Kardon describes Wireless Stereo Boost as a way to pair two Onyx Studio 8 speakers wirelessly for a wider stereo sound. Place one on each side of a room, and you get left and right channels instead of one speaker doing both. This is a nice upgrade path: buy one now, and add a second later. Ask us if we have a matching unit, and we will confirm compatibility.

Rechargeable battery

The speaker has a built-in rechargeable battery, rated at up to about 8 hours of playtime and about 5 hours to charge, per Harman Kardon. Real playtime depends on volume and bass: at moderate levels you will get closer to the claim, and at high volume you will get less. A refurbished speaker may have a battery that has aged slightly, so we test it before sale and confirm what to expect from your unit.

Dual microphone for calls

The built-in dual microphone lets you use the speaker for calls and voice assistants on your phone. Harman Kardon describes it as far-field, which means it is designed to pick up your voice from across a room. It suits a quick call or a video chat when friends or family are around. It is not a professional conference system, and noise around the speaker reduces clarity.

Colours

Harman Kardon lists black, blue and champagne. A refurbished stock list may not have every colour at all times. Tell us your preference on WhatsApp, and we will confirm what we have.

Inputs and charging

We confirm the exact ports on your unit before you order, including the charging connector and any wired audio input, because connections can vary between production runs and we do not want you to buy a unit expecting a connection it does not have. If a wired input matters to you, tell us, and we will check the unit in front of you.

Design and build quality

The Onyx Studio 8 weighs about 3.5 kg, per Harman Kardon, which makes it a substantial speaker. That weight is part of the sound: a heavy, solid enclosure resists vibration and lets the drivers work properly. It is portable in the sense that you can carry it from room to room, to a garden table or to a friend's house, but it is not a speaker you hang on a backpack.

The curved body and fabric grille give it a premium look, and the controls are neat and simple. On a refurbished unit, light marks or scuffs on the body or fabric may be present. We describe the condition of the unit you receive, and we do not hide cosmetic flaws. If appearance matters to you, tell us, and we will send photos before you pay.

A note on water

Unlike some portable speakers, Harman Kardon's published specifications for the Onyx Studio 8 do not list a water-resistance rating. We therefore recommend that you treat it as not waterproof: keep it away from rain, splashes, pools and wet surfaces, and use it indoors or under cover outdoors. If you are looking for a speaker for a poolside or a rainy-day barbecue, ask us about water-resistant options in our range. Being honest about this now saves you from a costly mistake later.

What "refurbished" means at Mega Store Kenya

The word "refurbished" is used loosely in the market, so let us be clear about our approach.

• It is a pre-owned product that has been checked and tested before sale. We test sound, Bluetooth pairing, the battery and charging.
• It is sold as refurbished, not as brand new. We never present it as new.
• Cosmetic wear is possible. We tell you about it.
• We confirm what is included before you pay, such as the cable and any accessories.
• We confirm the warranty terms for your unit before you pay, so you know exactly what is covered.
• We do not claim hidden specifications. If a feature is not working, we say so.

Refurbished is about value: you pay less, you get a genuine product, and you accept that it has had a previous life.

Refurbished vs brand new: which is right for you?

If the sound, the look and the brand matter more to you than a sealed box, refurbished is hard to beat.

How it sounds: what to expect

Harman Kardon tunes its speakers for a warm, balanced sound. You get clear mid-range vocals, controlled treble and bass that is present without drowning everything else. It is not a studio monitor, and it is not a stadium-level party speaker, but for a home, a balcony or a small gathering, it hits the target.

• Living room: fills the room at moderate volume with plenty of headroom.
• Bedroom: very comfortable at low volume, with clear vocals for late-night listening.
• Covered balcony or patio: enough volume for a small group.
• Kitchen: handy for radio and podcasts while cooking.
• Office or shop: background music at a pleasant level.
• Small gathering: fine for a dozen people in a lounge. For a big crowd, a larger party speaker is better.

For bigger events, our range also includes larger party speakers. Message us on WhatsApp if you want advice on the right size.

Using it with your TV and laptop

Laptops and small TVs often have thin speakers, and the Onyx Studio 8 improves dialogue and music. Two things to know. First, some TVs and laptops send Bluetooth audio with a small delay, which can make voices slightly out of sync. A wired connection, if your unit has one, avoids this. Second, if you want proper TV sound with a cinema feel, a soundbar is designed for the job. For a complete home setup, read our home theatre system guide.

How to pair it with your phone

1. Switch the speaker on and wait for the Bluetooth indicator to show it is ready to pair.
2. On your phone, open Bluetooth settings and choose the speaker from the list.
3. Wait for the connection confirmation.
4. Play music, and adjust the volume on both the phone and the speaker.
5. To use another phone, disconnect the first, then pair the second.

If the speaker does not appear, switch it off and on again, turn your phone's Bluetooth off and on, and move closer. If you have trouble, message us and we will help you.

Battery and charging: getting the best from a refurbished speaker

Battery life is the part of a refurbished portable speaker that deserves the most honesty. Every rechargeable battery loses a little capacity as it ages. We test each unit's battery before sale, but a few habits will help you get the most from it.

• Charge it fully before the first use. Harman Kardon quotes about 5 hours for a full charge, so plan ahead.
• Do not leave it in a hot place. A car dashboard or direct sun shortens battery life.
• Avoid running it flat repeatedly. Recharge when the battery is low.
• Use a good charger and cable. Poor chargers can damage batteries.
• If you store it for weeks, keep it at a middling charge, in a cool place.
• Expect volume to change the answer. Loud bass uses more power.

Kenya uses 240 V and the Type G plug, so use a plug that suits your sockets. If power cuts are common where you live, a charged speaker is a good backup for music and the radio, and a backup power setup keeps your devices topped up.

Looking after the speaker

• Wipe it with a soft, slightly damp cloth, and dry it afterwards. Do not use harsh chemicals on the fabric.
• Keep it dry. Remember it has no published water rating.
• Keep ports clean.
• Avoid dropping it. At about 3.5 kg, a fall can damage internal parts.
• Keep it away from extreme heat and humidity.
• Use a sensible volume. Constant maximum volume strains any speaker.

If something goes wrong, our repair page explains how we can help.

Harman Kardon Onyx Studio 8 vs other speakers

Versus a small travel Bluetooth speaker

A small travel speaker is cheaper and lighter, but it has limited bass and volume. The Onyx Studio 8 sounds much fuller, and it looks better in a room. If you mostly listen on the move, a small speaker is fine. If you listen at home, the Harman Kardon is a clear step up.

Versus a large party speaker

Party speakers like those in the JBL PartyBox range are larger, much louder and often add lights and microphone inputs. The Onyx Studio 8 is more refined and better suited to home listening and small groups. If you want to fill a hall or a big compound, ask us about party speakers.

Versus a soundbar

A soundbar sits under a TV and improves dialogue and movies. The Onyx Studio 8 is a music speaker you can move around. For TV sound, see our best soundbar in Kenya guide.

Versus the Onyx Studio 7

We also stock the refurbished Onyx Studio 7. Based on Harman Kardon's information, the Studio 7 is listed as waterproof, while the Studio 8 has no published water rating but offers a newer Bluetooth version and Wireless Stereo Boost for pairing two Studio 8 speakers. If water resistance matters, ask us about the Studio 7. If you want the newer design, the Studio 8 is the choice.

How to check your speaker when it arrives

1. Look at the exterior. Compare the condition with what we described.
2. Check the fabric for tears or loose areas.
3. Charge it, and confirm that the charging indicator behaves normally.
4. Pair it with your phone and play a song you know well.
5. Listen at low, medium and high volume. The sound should be clear, without crackling or rattling.
6. Test the bass with a bass-heavy track.
7. Test the buttons.
8. Test the microphone with a short call.
9. Test any wired input if it has one.
10. Tell us immediately if anything is wrong.

How to tell a genuine Harman Kardon from a copy

• Branding and logo quality. Genuine printing and badges are crisp and consistent. Blurry logos and odd fonts are warnings.
• Model label. The label should show the model name and a serial number. Ask us to show you.
• Weight. A genuine Onyx Studio 8 is heavy, around 3.5 kg per Harman Kardon. A very light unit is suspicious.
• Build. Seams should be neat. Loose parts and rough finishing are warnings.
• Sound. A copy often sounds thin, with weak bass and distortion at moderate volume.
• Price. A price far below market for a premium unit should raise questions.
• Seller. Buy from a seller who gives a receipt and explains the warranty.

Placing the speaker for the best sound

Where you put a speaker changes how it sounds almost as much as which speaker you buy. A few simple rules help the Onyx Studio 8 sound its best.

• Keep it off the floor. On a shelf or table at roughly ear height when seated, the sound reaches you directly.
• Mind the corners. A speaker pushed into a corner or against a wall boosts the bass and can make it boomy. Pull it a little away from the wall if the bass sounds heavy.
• Use a stable, solid surface. At about 3.5 kg, it is heavy, and a wobbly shelf can rattle at high volume.
• Avoid enclosing it. Putting it inside a cabinet muffles the sound.
• Point it at the listening area. Even a speaker that fills a room sounds clearer when it faces you.
• Keep it away from water and heat, such as a sink, a stove or a sunny window.

If you later add a second speaker for Wireless Stereo Boost, place the two several feet apart, with you roughly in the middle, so the left and right channels spread the sound across the room.

Music that suits the Onyx Studio 8

A warm, balanced speaker flatters most styles. Gospel and choirs sound rich because the mid-range is clear. Afrobeats, bongo flava, amapiano and gengetone get a firm low end without losing the vocals. Acoustic guitar, benga and rhumba benefit from the natural tone, and jazz and soul sound smooth. Podcasts, audiobooks and news radio are clear at low volume, which is a quiet strength of a well-tuned speaker. Very bass-heavy genres can ask for more than a portable speaker can give at high volume, so if you want your windows to shake, a larger speaker is the right tool.

Sensible listening levels

A speaker that can go loud does not need to be loud. Loud sound for long periods can tire your ears, so keep the volume at a level where you can hold a conversation. The Onyx Studio 8 tends to sound best at moderate volume, where the drivers are comfortable and the bass is controlled. If you are hosting neighbours nearby, be considerate, and remember that bass travels through walls more than treble.

Who this speaker is right for

Music lovers who want a fuller sound than a small travel speaker gives.

Home users who want a stylish speaker that doubles as decor.

Hosts of small gatherings who want a speaker that looks good and sounds rich.

People who want a premium brand on a budget, and are comfortable buying refurbished.

Buyers who may add a second speaker later for wider stereo.

If you need a waterproof speaker, a very loud event speaker or a sealed brand-new box with the full maker's warranty, ask us about other options.

Why buy from Mega Store Kenya

Honest refurbished stock. We test our refurbished products and describe their condition truthfully.

Same-day delivery in Nairobi and next-day delivery outside Nairobi through reputable couriers.

M-Pesa accepted, with simple payment.

Accessories and support. Browse our accessories or visit our repair page if you need help later.

Trade in your old gadgets. Our sell page explains how.

Visit us. We are at New Alnoor Exhibition, Second Floor, Shop 7, Taveta Road, Nairobi CBD, and we open at 9:00 AM. You can listen to the speaker before you buy. Message us on WhatsApp.

Frequently asked questions

Is this a genuine Harman Kardon Onyx Studio 8? Yes. It is a genuine Harman Kardon speaker, sold as a refurbished, tested unit.

What does refurbished mean? It means the speaker has been used before, then checked and tested before resale. We describe its condition honestly.

Does it come with a warranty? We confirm the warranty terms for your unit before you pay.

Is it waterproof? Harman Kardon's published specifications do not list a water rating, so treat it as not waterproof and keep it dry.

How long does the battery last? Harman Kardon quotes up to about 8 hours of playtime and about 5 hours to charge. Real life depends on volume and the battery's age.

Does it work with iPhone and Android? Yes, it pairs over Bluetooth with phones, tablets and laptops.

Can I pair two speakers? Wireless Stereo Boost pairs two Onyx Studio 8 speakers. Ask us about a matching unit.

Can I use it for calls? Yes, it has a built-in dual microphone.

Does it have cosmetic marks? Light wear is possible on refurbished units. We tell you about it and can send photos before you pay.

Can I pay via M-Pesa? Yes, M-Pesa and card payments are both accepted.

Do you deliver outside Nairobi? Yes, next day through reputable couriers. Same-day delivery within Nairobi.

Order your refurbished Harman Kardon Onyx Studio 8 today

Available now at Mega Store Kenya. Message us on WhatsApp to confirm the colour, what is included and the condition of the unit, or visit us at New Alnoor Exhibition, Second Floor, Shop 7, Taveta Road, Nairobi CBD.

Nairobi: same-day delivery for orders confirmed before 3:00pm on a working day. Rest of Kenya: courier to your door or nearest agent, typically 1–3 business days. You can also collect for free from our shop at New Alnoor Exhibition, Shop 7, Second Floor, Taveta Road, Nairobi CBD.

Faulty or not as described? Tell us within 7 days for a replacement or full refund. Changed your mind? Sealed, unused items can come back within 14 days. See our returns & warranty policy.