Hamburg SQM 23 DAB

New edition of the classic “HAMBURG SQM 23” from the 80s (from 1983) with the latest technology and many new features!

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High-End CODEM IV World-tuner,
FM, AM, DAB, DAB+ Tuner with radiotext/ DLS,
Traffic function,
alphabetical DAB+ List,
Service following,
Band Introscan



USB (2x),
MP2, MP3, WMA, FLAC, M4A (AAC), APE, WAV support,
Apple iPod Support



Internal and external Microfon,
Audiostreaming with trackinfo,
Voice assistant support (e.g. Siri, Google, Alexa),
Wake-up on call,
Phonebook access



Sound presets,

4-channel pre-amp out+ Sub-out,
4x 50 Watt



Multicolour LCD (7 colors),
DIM- function,
Night design if switched off (Buttons),
Favoritebutton for one source,
Permanent memory,
Short body (low installation depth) ,
IR-remote option (compatible to old RC-10 remote control),
SWC option (Steering Wheel Control)
Technical specifications


Tuner Type: High-End Automotive Tuner Blaupunkt CODEM IV

World Tuner (switchable): EU, USA, South America, Thailand

Frequency bands: FM, AM, DAB, DAB+
Frequency band FM: 87.5 – 108 MHz
Frequency band MW: 531- 1602/ 530- 1710 kHz
Channels (frequency band) DAB/ DAB+: 5A- 13F (174,928- 239,200 MHz)

Station memory: 15x FM, 10x AM, 15x DAB
Station memory banks: FM1, FM2, FMT, AM, AMT, DAB1, DAB2, DAB3
Station memory levels deactivatable: FM2, FMT, AM, AMT, DAB2, DAB3

Station display (PS): Yes
Radiotext/ Radiotext Plus (RT/ RT+): Yes/ No
Display DLS/ ENSEMBLE/ SERVICE: Yes/ Yes/ Yes
Alternate frequency function (AF): Yes
Traffic Radio (TA) FM/ DAB: Yes/ Yes
Automatic time adjustment: Yes
Enhanced Other Networks (EON): Yes
Regional function (REG): Yes
Program type identifier (PTY)/ PTY Seek: Yes/No

Travelstore/ Number of Presets for Travelstore: Yes/ 5x FMT, 5x AMT
Band Scan/ Preset Scan: Yes/ No

Sensitivity (FM): Two levels (lo / dx)
Noise suppression (FM): Yes
Hi-Cut (FM): Yes (multi-level switchable)

DAB-DAB Service following: Yes
DAB-FM Service following: Yes
Service search: Yes
Ensemble/ Service selection: Yes/ Yes
Ensemble/ Service browsing: No/ Yes
Alphabetical Service list DAB: Yes

Frequency response FM  (Hz) – 3 dB: 30 – 15.000
Frequency response DAB (Hz) +/- 3 dB: 20 – 20.000



AUX-IN/ automatic detection/ activation: No
USB front: yes (type A, recessed jack)
USB rear: yes (type A, cable)
Memory card reader: No
Concealed front inputs: Yes (USB usable with flap closed)
Compatible file system of external storage devices: FAT16, FAT32, exFAT
Maximum storage size of external storage devices: > 128 GB
Maximum file/folder count of external storage devices: > 30.000
CD-/DVD-loader: No

Playback formats: MP2, MP3, WMA, APE, FLAC, AAC, MP4, WAV
Hi-Res Audio playback: No
Display options: ID3V2 (title, artist, album), folder, file, playtime

Folder & file browsing: Yes

iPod, iPhone control (iAP2, Lightning/ USB-C)   Yes (USB front and rear)

Shuffle playback folder/ media: Yes/ Yes
Repeat Title/ Folder/ All: Yes/ Yes/ Yes
Introscan: Yes (4- 60 seconds adjustable)



Phone call: Yes
Internal microphone: Yes
Connectivity ext. microphone: Yes
Answer/ reject call: Yes/ Yes
Access phonebook: Yes (max. 1000 numbers)

Audio streaming: Yes
Audio streaming ID3 track display: Yes (Title, Artist, Album, Playtime)

Voice assistant access (e.g. Siri, Google, Alexa): Yes

Cell phone navigation audio mix: No

Auto wake-up on call: Yes (when radio off + ignition on), deactivatable

Fast pairing without PIN: Yes
Automatic reconnection: Yes, last 5 devices

Bluetooth version: 5.0, compatible with V4.2 and V2.1 +EDR
Number of paired devices: last 5
No. of devices connected at the same time: 1
Supported profiles: A2DP, AVRCP, HFP, SPP
Audio Codecs: AAC, SBC

*Availability/ support of functions depend on the phone/ app used!



Equalizer Number of bands/ design/ Q-filter: No
Bass/ treble adjustment: Yes / yes (+/- 7 steps)
Source specific bass/ treble adjustment: Yes
Balance/ fader: Yes / yes (+/- 7 steps)
Loudness: Yes
Sound Presets: Yes (Rock, Pop, Classic)

Speaker Outputs (Channels): 4
Preamp Outputs (Channels, Voltage): 4 (RCA, < 2V)
Sub-Out: 2 (RCA, gain/ frequency variable)
Max. Power: 4 x 50 watts
Sine power at 14.4 V: 4 x 24 watts (according to DIN 45324)



Display: LCD, negative, anti-reflective, wide angle, alphanumeric/ symbols
Scrolling text: Yes (once, repeatedly)
Illumination color display: Green, yellow, red, violet, blue, skyblue, white
Illumination color keys: Amber, Modelled on original light bulb lighting
Day/ Night mode: Yes (manual/ via dimmer connection)
Nightdesign if powerd off: Yes (buttons)
Brightness: Multi-level, variable
Time display: Yes
HMI languages: English, German
1 hour off timer if ACC off: Yes, deactivatable
Low standby current: Yes (< 3,5 mA )

Antenna inputs: FM DIN/ ISO (Adaptor), DAB SMB (with 12 V phantom power)
Telephone mute: Yes
Ext. handsfree microphone connector: Yes, 2,5mm
Remote control: Yes (IR input for card remote and old RC-10 remote control)
Steering wheel remote control (SWC): Yes (analog, programmable, pre-programmed)

Variable scan time: Yes (4, 8, 12, 60s)
Confirmation beep: Yes (deactivatable)
Control panel type: Fixed panel
Color panel/ decor ring: Black/ Black

Software Update: via USB
Permanent Memory: Yes (Settings & Presets)
Demo mode: Yes
Weight: approx. 0.65 kg
Dimensions: 50mm x 178mm x 116mm (H x W x D, housing only), 58mm x 187mm x 11mm (H x B x T , front w/o keys)
Operating voltage/ power consumption: 10.5 – 14.4 V/ < 10A in operation, 10 sec. after ACC power off: < 3.5 mA



User manual: Yes (DE, EN, DA, NL, FR, ES, PT, IT, PL, CS)
External BT microphone: Yes
Unlocking tool: Yes
Connectors (ISO A, B): Yes
Antenna adaptor (DIN/ ISO): Yes
DAB antenna: Optional accessories (e.g. 2 006 021 000 000)
IR remote control: Optional accessories (1 101 402 001 001)


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