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Highlights
Why we love this product
The ULTIMA 25 ACTIVE Surround is our plug-and-play complete Surround Sound set. No need for a bulky amplifier or AV receiver - the speaker comes with a receiver built in. The subwoofer and rear speakers are paired wirelessly. And all that with the award-winning ULTIMA sound our fans know and love. What movies will you fall in love with next?
Key advantages at a glance
- A pair of high-end active bookshelf speakers with wireless T 10 subwoofer and EFFEKT 2 rear speakers
- True Surround Sound with incredibly deep bass for rooms up to 35 m², DAB+ and FM radio with 6 radio presets each
- Bluetooth 5.0 with aptX® and AAC for music streaming from Spotify, Amazon Music, YouTube etc., Video sound is perfectly synchronized
- Large 25-mm tweeter with Phase Plug and Waveguide for detailled sound, 2-way system with balanced tuning, fiberglass midwoofer with phase plug for natural sounding acoustic instruments, bass-reflex construction for deep, precise bass
- Dynamore® Virtual Center for crystal clear dialogue, equalizer, sound modes for full bass even at low volumes, night mode, auto-wake from standby
- Dimmable OLED display, on-speaker controls, touch slider, remote control, connects with HDMI ARC/CEC, optical in, AUX, USB-C soundcard function for PC/Mac
- Includes 3.5 m speaker connector cable, covers, antenna, rubber feet, and remote control, compatible with the AC 7001 SP 2 floor stand or the AC 7500 SM wall mount
- EFFEKT 2 with 2.5 meter power cable, integrated wall mount, compatible with the AC 3500 SM wall holders for directional positioning, the EFFEKT 2 also fit on the K&M AC 6001 SP, and K&M AC 6001 Flex floor stands (both allow power cable to fit inside stand), and AC 1001 SP (power cable cannot fit inside), or place on bookshelves
Features
All technologies at a glance
Big league tech
In contrast to our passive ULTIMA 20, the ULTIMA 25 has particularly rich bass and a maximum volume that's a good deal higher. Additional acoustic highlights include the phase plug, wave guide, and fiberglass diaphragm.
Wave Guide for extremely precise localization of individual sound sources and detailed soundstage structure .
Phase Plug to mitigate phase-shift related wave cancellations, improving transparency and directional sound output.
Fiberglass diaphragm for high impulse fidelity and capacitance.
Specifications
UL 25 bookshelf speaker
High-end HIFI bookshelf speaker (passive)
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Description Item Width 21.5 cm Height 36.5 cm Depth 25 cm Weight 6 kg -
Description Item Terminal clamps Screw terminal, gold-plated -
Description Item Banana plug compatible Yes Maximum cable diameter 4 mm Equalization port (position) back Equalization port 1 Removable front cover Yes Cabinet material MDF Cabinet surface Laminated Wall mounting brackets Yes Tweeter (number per enclosure) 1 Tweeter (diameter) 25 mm Tweeter (material) Fabric Bass/Midrange driver (number per enclosure) 1 Bass/Midrange driver (diameter) 165 mm Bass/Midrange driver (material) Fibreglas Frequency range 41 - 20000 Hz Maximum sound pressure level 104 dB/1m Impedance 4 Ohm Acoustic principle 2-way-system Enclosure type Bass reflex Crossover frequency internal switch 2600 Hz
UL 25 Active bookshelf speaker
High-end HIFI bookshelf speaker (active)
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Description Item Width 21.5 cm Height 36.5 cm Depth 25 cm Weight 8.5 kg -
Description Item AUX Yes Cinch input stereo 1 Audio inputs- HDMI Yes Digital inputs optical 1 Bluetooth Yes Bluetooth AAC Yes Bluetooth aptX Yes HDMI ARC CEC Yes Subwoofer output, wireless Yes USB-C sound card Yes -
Description Item Dolby Digital Yes Dolby Pro Logic Yes Dynamore® Virtual Center Yes -
Description Item DAB+ Yes FM Yes RDS Yes Station memory positions 6 -
Description Item Power supply voltage 230 V Automatic on/off Yes Standby-Function Yes Power output capacity impulse (peak) Satellite 50 W Total power output capacity (RMS) 100 W Adjustable sound settings Yes Amplifier technology Class D Amplifier channels 2 Performance measured by 4 Ohm -
Description Item Banana plug compatible Yes Maximum cable diameter 4 mm Equalization port (position) back Equalization port 1 Removable front cover Yes Cabinet material MDF Cabinet surface Laminated Wall mounting brackets Yes Tweeter (number per enclosure) 1 Tweeter (diameter) 25 mm Tweeter (material) Fabric Bass/Midrange driver (number per enclosure) 1 Bass/Midrange driver (diameter) 165 mm Bass/Midrange driver (material) Fibreglas Frequency range 41 - 20000 Hz Maximum sound pressure level 104 dB/1m Impedance 4 Ohm Acoustic principle 2-way-system Enclosure type Bass reflex Crossover frequency internal switch 2600 Hz -
Description Item Remote control Infrared -
Description Item Power cable 1.2 m Speaker cable 3.5 m
T 10 Subwoofer
High-end-class active subwoofer that can be configured in either front- or down-firing modes
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Description Item Width 35.1 cm Height 48.3 cm Depth 38 cm Weight 15.6 kg -
Description Item Cinch input 1 -
Description Item Power supply voltage 230 V Automatic on/off Yes Maximum power consumption 150 W Fixed AC power cable Yes Safety class 2 Fuse Yes Storage for settings when disconnected Yes Standby-Function Yes Standby-Power consumption 1 W Bass boost/EQ Yes Input gain adjustment Yes Level control Yes Phase control Yes Wireless Subwoofer Yes Power output capacity impulse (peak) Bass 150 W Amplifier configuration 1.0 Amplifier technology Class D Amplifier channels 1 -
Description Item Lowest frequency (-3 dB) 33 Hz Suitable for AV receiver Yes Equalization port 1 Down-firing Yes Front-firing Yes Cabinet material MDF Cabinet surface Laminated, matte Integrated stand Yes Woofer (number per enclosure) 1 Woofer (diameter) 250 mm Woofer (material) Aluminium Frequency range 33 - 190 Hz Maximum sound pressure level 115 dB/1m Acoustic principle 1-way-system Enclosure type Bass reflex
Satelliten-Lautsprecher EFFEKT 2 (Stk.)
Complex 2-way system with broad sound dispersion and long-throw midwoofer for full, clear sound at all volumes and in every listening position
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Description Item Width 11.1 cm Height 16 cm Depth 11.8 cm Weight 0.9 kg -
Description Item Automatic on/off Yes Storage for settings when disconnected Yes Standby-Function Yes Standby-Power consumption 0.5 W Output performance amplifier: Satellites 40 W Total power output capacity (RMS) 20 W Amplifier technology Class D Amplifier channels 2 -
Description Item Cabinet material Plastic Cabinet surface Housing: silk matte / grille: glossy Keyhole plate mounted Yes Wall mounting brackets Yes Tweeter (number per enclosure) 1 Tweeter (diameter) 19 mm Midrange driver (number per enclosure) 1 Midrange driver (diameter) 76 mm Frequency range 115 - 21000 Hz Acoustic principle 2-way-system Enclosure type Closed -
Description Item Cable length 2.5 m
Accessories
All required accessories are included in the delivery.
Recommended accessories
Included components
ULTIMA 25 ACTIVE Surround 4.1 set
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1 × UL 25 Active dual bookshelf speakers
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Night Black
- 1 × UL 25 bookshelf speaker – Black
- 1 × UL 25 Active bookshelf speaker – Black
- 1 × ULTIMA 25 DAB antenna – Night Black
- 1 × ULTIMA 25 remote control – Black
- 2 × ULTIMA 25 fabric cover – Night Black
- 1 × Power cable – Black
- 1 × 3,5m Lautsprecherkabel (ET)
- 1 × T 10 Subwoofer – Black
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1 × pair of satellite speakers EFFEKT 2
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Black
- 2 × EFFEKT 2 power cable – Black
- 2 × Satelliten-Lautsprecher EFFEKT 2 (Stk.) – Black
Downloads & support
Downloadable documents
- Operating instructions: UL 25 Active dual bookshelf speakers
- Declaration of conformity: UL 25 Active dual bookshelf speakers
- Quick Start Guide: UL 25 Active dual bookshelf speakers
- Safety Booklet: UL 25 Active dual bookshelf speakers
- Operating instructions: T 10 Subwoofer
- Declaration of conformity: T 10 Subwoofer
- Quick Start Guide: T 10 Subwoofer
- Operating instructions: pair of satellite speakers EFFEKT 2
- Declaration of conformity: pair of satellite speakers EFFEKT 2
- Quick Start Guide: pair of satellite speakers EFFEKT 2
Shipping information
Shipping informationInformation about the guarantee
Warranty and guaranteeAudio glossary
Audio lexicon: Technical terms quickly explainedContact details
Buyers' guide and service
Store Finder
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1 Offer valid until 27.03.2025 23:59.
The voucher is only intended for the use of private customers. The voucher cannot be redeemed for cash, nor can it be used in combination with other vouchers. It cannot be used for orders that have already been placed. The resale of a voucher is prohibited and it will lose its value in the case of being resold. You can learn more about the terms and conditions in the General Business Conditions.