Studebaker SB2140 - User Manual

The Studebaker SB2140 is a portable stereo Bluetooth boombox, designed to offer a versatile audio experience with multiple playback options and recording capabilities. This device functions as a BT receiver and transmitter, CD player, cassette recorder, and AM/FM radio, delivering 10 Watts RMS output.

Function Description:

The SB2140 offers a comprehensive range of audio functions:

• Bluetooth Connectivity: It features both Bluetooth receiver and transmitter capabilities. As a receiver, it allows streaming music from Bluetooth-enabled devices like smartphones. As a transmitter, it can send audio from the unit's CD, USB, Tape, or AUX modes to external Bluetooth receivers such as headphones or speakers.
• CD Player: The unit includes a top-loading CD player that supports commercial CDs and self-compiled CD-R/CD-RW discs. It offers playback controls such as play, pause, stop, skip track, fast forward/rewind, and repeat modes (Repeat 1, Repeat All). It also supports programmed playback for up to 20 tracks.
• USB Playback: The SB2140 can play MP3 files from a USB flash drive (up to 32 GB maximum). It provides similar playback controls to the CD player, including play, pause, stop, skip track, and programmed playback for up to 20 tracks/files.
• Cassette Recorder: This feature allows for recording from various sources including the built-in microphone, radio, CD, USB, AUX IN, or Bluetooth. It supports playback, fast forward, rewind, pause, and stop functions. An automatic stop system protects cassette tapes from unnecessary wear.
• AM/FM Radio: The unit includes an AM/FM radio tuner with a telescopic antenna for FM reception and an internal antenna for AM. It supports both FM mono and FM stereo reception, with an FM Stereo LED indicator.
• AUX IN: An AUX IN jack allows connection to external audio sources like iPods, MP3 players, or other digital audio players, enabling playback through the boombox's speakers.
• Headphone Output: A headphone jack is provided for private listening, which automatically disconnects the speakers when in use.
• LED Light Show: The unit features a speaker and tweeter LED light show that can be turned on or off.

Important Technical Specifications:

• Audio Output Power: 2 x 5W (RMS), totaling 10 Watts RMS output.
• Speakers:
  • Tweeter: 2 x 1.5 inch / 6 ohms
  • Woofer: 2 x 4 inch / 6 ohms
• Radio Frequency Range:
  • AM: 530 – 1710 KHz
  • FM: 88 – 108 MHz
• Bluetooth: V5.0 + EDR
• USB Support: Up to 32GB USB devices.
• Power Source:
  • AC Adapter: Input AC 120V~ 60Hz, Output DC 12V, 1.5A
  • Built-in Rechargeable Lithium Battery: DC 7.4V, 2200mAh

Usage Features:

• Power Operation: The unit can be operated via AC power using the included adapter or on the go with its built-in rechargeable Lithium battery. The CHARGE INDICATOR shows charging status (Red for charging, Green for fully charged) and flashes Red when the battery is low.
• Controls:
  • Master Volume: Rotary knob to adjust overall sound level.
  • Treble/Bass/Balance Knobs: Allow adjustment of treble, bass, and left/right speaker balance for customized sound.
  • Function Switch: Selects between Power Off/Tape, CD/USB/AUX, Radio, and Bluetooth modes.
  • Band Switch: Selects AM/FM/FM ST. for radio.
  • Tuning Knob: For manual radio station tuning.
  • LED Display: Shows track numbers, program numbers, USB mode, and other indicators.
  • Playback Controls: Dedicated buttons for Play/Pause, Stop, Skip/Fast Forward/Rewind for CD, USB, and Cassette.
  • Record Button: For cassette recording.
  • +10/Light Show Button: Advances music search by 10 tracks in CD/USB mode and controls the LED light show.
  • Repeat/Program Button: Manages repeat and program functions for CD and USB.
  • Bluetooth Out Button: Activates Bluetooth transmitter mode.
  • Bluetooth Pair Button: Initiates Bluetooth pairing.
• Portability: Equipped with a carrying handle for easy transport.
• Safety Features: Includes an automatic stop system for cassette tapes to prevent damage.

Maintenance Features:

• General Care:
  • Avoid excessive force, shock, dust, extreme temperatures, direct sunlight, and hot/humid places.
  • Clean the unit with a dry cloth; avoid solvents or detergents.
  • Keep away from heating appliances and sources of electrical noise.
  • Disconnect AC adapter when not in use for long periods.
• Cassette Care:
  • Check for loose tape layers and take them up with a pencil before insertion.
  • If tape feels tight, fast wind from end to end and back again.
  • Use only well-known brands of tape; avoid C-120 cassettes.
  • Do not expose cassettes to direct sunlight, dust, or oil, and avoid touching tape surfaces.
  • Head Cleaning: Periodically clean tape heads, pinch roller, and capstan with a soft cloth or cotton pad dampened with isopropyl alcohol or special tape head cleaner to maintain performance.
• Compact Disc Care:
  • Handle discs by the edges; avoid touching the shiny, unprinted side.
  • Do not attach adhesive tape or stickers to discs.
  • Clean discs periodically with a soft, lint-free, dry cloth, wiping in straight lines from the center to the edge. Avoid detergents or abrasive cleaners.
  • Use a CD cleaning kit if necessary.
• Furniture Protection: The unit has non-skid rubber feet. To prevent damage to fine wooden furniture from certain polishes or sprays, it is recommended to apply small self-adhesive felt pads to the bottom of the rubber feet.
• Battery Care: To prolong battery life, it is recommended to completely discharge the battery before fully recharging it. Recharge at least once a month if not used often. Do not burn, bury, puncture, crush, or disassemble Lithium batteries. Recycle properly.
• Troubleshooting Guide: The manual provides a comprehensive troubleshooting guide for common issues such as no power, low volume, distorted sound, playback problems, and recording failures, offering possible causes and solutions.