🛠️ In Ceiling & In Wall passive subwoofer
🛠️ In Ceiling & In Wall passive subwoofer
🚚 Livraison en 1-4 jours dans les pays baltes. 2-8 jours UE
💰 14 jours retour
🔒 Paiement sécurisé : PayPal, 💳carte, facture
🛡️Assurance expédition
🟢 2 ans de garantie
🧱 Service d'installation
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En stock
Conditions d'expédition
Conditions d'expédition
- Méthode d'expédition : Standard
Coût d'expédition : - EU 25€
- LT, EST 6€
- LV 3€
- RU, USA 200€
- Other countries 200€
- Expédié généralement 2 à 5 jours ouvrables après la commande
- Parfois, expédié sous 20 jours ouvrables, nous informerons de plus après la commande.
🟠 Taxes 🟠
🟠 Taxes 🟠
Les prix incluent la TVA pour les pays de l'UE. Pour les pays hors UE, les prix sont affichés hors taxes. Des droits de douane supplémentaires peuvent s'appliquer. Veuillez vérifier auprès de votre bureau de douane local pour plus de détails.
🧾 Overview
The KEF Ci250RRb-THX is a high-output in-ceiling architectural subwoofer from KEF’s Extreme Home Theatre line, built to deliver deep, cinema-grade bass while staying visually discreet. Designed to be driven by the DSP-equipped KEF KASA500 amplifier, it reaches into truly low frequencies for movies, music, and gaming without a floor-standing subwoofer taking over the room.
✅ Key Features
✅ Deep bass extension down to 20 Hz (±6 dB, KASA setting) for true cinematic impact
✅ Extra-long-throw 250 mm (10 in.) bass driver with a massive 150 oz magnet for high output and low distortion
✅ THX performance: THX Certified Ultra with four Ci250RRb-THX on one KASA500; THX Certified Select with two
✅ High output capability up to 109 dB max SPL for large rooms and demanding content
✅ Ultra-Thin Bezel (UTB) design with paintable magnetic grille for an “almost invisible” install
✅ IP64 rated for dust protection and splash resistance (ideal for demanding architectural environments)
✅ Optimised for clean integration with AVR/processor bass management via KASA500 DSP control
📊 Technical Specifications ▼
| Parameter | Value |
|---|---|
| Device Type | In-ceiling architectural subwoofer (Active Mode via KEF KASA500) |
| Series | KEF Ci-R Series (Extreme Home Theatre) |
| Drive Units | LF: 250 mm (10 in.) |
| Nominal Impedance | N/A (Active Mode with KEF KASA500) |
| Sensitivity (2.83 V / 1 m) | N/A (Active Mode with KEF KASA500) |
| Frequency Response (±6 dB), open-backed | 20 Hz – KASA setting |
| Frequency Range (-10 dB) | 16 Hz – KASA setting |
| Max SPL | 109 dB |
| Recommended Amplifier | KEF KASA500 (DSP-equipped) |
| Recommended Low-pass Filter | 50 Hz – 120 Hz |
| THX Certification | THX® Certified Ultra (4 units); THX® Certified Select (2 units) |
| Ingress Protection | IP64 |
| External Dimensions | Ø 346 mm × 153 mm (Depth) |
| Cut-out Dimensions | Ø 300 mm |
| Mounting Depth From Surface | 147 mm |
| Ideal Rear Volume | 140 L |
| Minimum Rear Volume | 70 L |
| Ceiling Thickness | 6–30 mm |
| Net Weight | 5.6 kg |
| Inputs / Outputs | Speaker cable connection from KEF KASA500 (no built-in wireless/streaming) |
| Bluetooth / Wi-Fi | Not applicable |
📦 What’s in the Box
📦 KEF Ci250RRb-THX in-ceiling subwoofer (with Ultra-Thin Bezel design)
🧲 Paintable magnetic grille
📖 Documentation (installation / product documentation)
🔄 Compatibility
Designed to work with the KEF KASA500 DSP amplifier (recommended) and integrate into home theatre systems via standard AVR/processor bass management. Ideal for premium architectural cinema builds and pairs naturally with KEF Ci Extreme / THX architectural speakers. Suitable for dust-prone and splash-prone installation environments thanks to IP64 compliance.
📦✈️ Shipping & Returns
📦 Insured worldwide delivery
🔄 14-day return policy
🛡️ 2-year EU warranty
📝 Reviews
“accurate and powerful bass while remaining visually discreet” — Sound & Vision
“engineered to deliver incredibly accurate and powerful bass… (with) exceptional depth” — Audioholics
“capable of ‘accurate and powerful’ bass in large cinema rooms” — Home Theater Forum
⚠️ Warning
⚠️ Warning: Installing this sub may cause sudden “temporary ceiling acoustics expertise,” compulsive DSP tweaking, and an uncontrollable urge to add three more for THX Ultra. You have been warned.
Let customers speak for us
Sound is fabulous.
I never expected such transparency and spacious soundstage from an IEM.
Simply the best "portable" headphones. Pity it was discontinued.
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FiiO FT1 PRO Over-Ear Wired Headphones
Lielisks pastiprinātājs! Lietoju viņu kopā ar austiņām "HifiMan Sundara" caur balancētu izeju.
Отличный фонокоректор порадовал звуком!
PremiumHIFI отличный магазин,отличный сервис!👍👍👍👍👍
REL Tzero MKIII Subwoofer
Decent device for the money!I am very satisfied with the purchase!Thanks to the PremiumHIFI store!
Отличный настольный ЦАП от FiiO..
Обслуживание на высшем уровне..
Магазину и Аркадию респект!..
Заказал здесь Wiim mini. Пришло за 2 дня. Проигрыватель очень понравился, выдаёт очень хороший звук и хорошую сцену (подключаю к ресиверу через оптический кабель, поэтому звук обрабатывает цап ресивера). Также стоит очень дёшево. Не понравилось только то, что многовато высоких частот (но уже привык или пропали). Рекомендую к покупке.
Ļoti labi cenai atbilstoši skaļruņi. Kad secināju ka manā set up vājš posms varētu būt tieši skaļruņi nomainot tos neesu kļudījies ne pārtērējies. Ar tiem kas klausās mūziku kurā basi nedominē varbūt iztiks bez sabvūfera. Un ja pārdomāšu savu stereo varēšu no Klipsh skaļruņiem būvēt Dolby Atmos, Spatial mājas kino! Un šīs vara krāsas skaļruņi!
The device is good quality and it sounds really great. But it has two issues.
You cannot switch between L/R channels. It lowers both channels volume. The issue is mentioned on FiiO website.
It has LineOut function, where device is playing on max volume and you can use your computer volume bar, but it is so loud that even on the lowest set it is screaming, so you have to choose another option and adjust volume on FiiO device instead.
I wish I knew it before buying.
.