Highlights

Why we love this product
This ready-to-play complete set includes the ULTIMA 20 (Mk4) and everything you need for you daily music listening: Bluetooth, CD player and FM/DAB+Radio. All components perfectly matched. Save money when you buy as a bundle.
Key advantages at a glance
- Compact premium-class stereo set for music, TV audio, radio and games
- Digital DAB+ radio in noise-free, high quality with wide variety of stations
- Bluetooth with aptX® for music streaming in CD-like quality from Spotify, Youtube, Apple Music, TuneIn etc.
- Powerful 80-watt amplifier for zero distortion even at high volume, 2-way ULTIMA 20 (Mk4) bookshelf speaker with bass-reflext system, phase plug, and wave guide technology
- Place on bookshelf, floor-stand (AC 7001 SP2), or wall mount
- Connect optional subwoofer, additional sources via line-in, USB playbac, FM radio, headphone out
- Includes remote control, speaker cable, covers, batteries, and antenna
- Suitable for rooms up to 25 m²
Features
All technologies at a glance

Specifications

Regal-Lautsprecher UL 20 Mk4 25 (Stk.)
-
Description Item Width 21.5 cm Height 33.5 cm Depth 25.1 cm Weight 6.2 kg -
Description Item Terminal clamps Screw terminals, brass coated -
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 Net internal volume 10.5 L 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) Kevlar Continuous power handling (IEC - Long Term) 50 W Sensitivity (2.83 V / 1 m) 87 dB Frequency range 60 - 20000 Hz Peak power capacity (IEC - Short Term) 80 W Maximum sound pressure level 104 dB/1m Impedance 4 Ohm Acoustic principle 2-way-system Enclosure type Bass reflex Crossover frequency internal switch 2800 Hz

CD-Receiver KB 43 CR 19
Compact, performance-heavy Bluetooth CD receiver now with digital radio DAB+
-
Description Item Width 27.5 cm Height 13.5 cm Depth 35 cm Weight 5.8 kg -
Description Item Cinch output stereo 1 Headphone output 6,3mm 1 Bass driver output 1 AUX Yes Cinch input stereo 3 3.5mm stereo in 1 Bluetooth Yes Bluetooth aptX Yes High level speaker outputs 2 -
Description Item Display Yes Power supply voltage 230 V Maximum power consumption 120 W Fixed AC power cable Yes Standby-Function Yes Standby-Power consumption 0.5 W Power output capacity impulse (peak) Satellite 40 W Adjustable sound settings Yes Amplifier configuration 2.1 Amplifier technology Class AB Amplifier channels 2 Automatic off Yes Power output capacity sinus (RMS) Satellite 25 W -
Description Item DAB+ Yes FM Yes RDS Yes Station memory positions 40 -
Description Item CD-Audio Yes CD Yes CD-R Yes -
Description Item Remote control Infrared
Accessories
All required accessories are included in the delivery.
Recommended accessories
Included components
-
1 × Bookshelf speaker UL 20 Mk4 25 (Pair)
–
Black
- 2 × Regal-Lautsprecher UL 20 Mk4 25 (Stk.) – Black
- 2 × Schwarz Gummifüße (4 Stk.) für UL 20/40 Mk4 25 (ET) – Black
- 2 × ULTIMA 20 Mk4 Cover – Black
-
1 × CD-Receiver KB 43 CR 19
–
Black
- 1 × Remote Control for KB 43 CR 19 – Black
- 2 × speaker cable 3m, 1mm² for KB 43 CR 19
- 1 × DAB-/FM-Antenna for CD Receiver KB 43 CR 19
- 2 × AAA battery
Downloads & support
Shipping information
Shipping informationInformation about the guarantee
Warranty and guaranteeAudio glossary
Audio lexicon: Technical terms quickly explainedContact details
Buyers' guide and service
Store Finder
Experience our products in person and talk to our team directly for the best expert advice. OverviewMinimum age: 18. You must
live in either Austria, Belgium, Spain, France, Ireland, Italy, Luxembourg, the
Netherlands, or Portugal. Depending on country, installment payments can be made
using a credit card, a debit card, or SEPA direct debit.
Pending credit check performed by Alma. Duration of financing comprises either
2 or 3 monthly installment payments as chosen by the consumer. Customers paying
Alma installments pay no fees, effective annual interest of 0.00% applicable to
loan agreements concluded between 21/03/2025 and 26/03/2025. 0% financing is restricted
to selected products and order values ranging between 99 EUR and 5,000 EUR,
only for transactions in euros. Individual monthly installments for your order
depend on value of goods and will be displayed to you on the relevant product pages as well as the Alma checkout.
Creditor: Alma SAS, 176 Avenue Charles de Gaulle, 92200 Neuilly-sur-Seine, France. Security of payments guaranteed by Alma and its service providers. All payments protected by 3D Secure. Depending upon country, eligible customers must have a valid and accepted credit or debit card as a payment source, or share their SEPA direct debit information with Alma.
More information about Alma Installments can be found here: https://teufelaudio.com/payment-options