BONTEMPI B4

Introduction

The Bontempi B4 is likely a portable electronic keyboard designed for beginners and intermediate players. While specific information for the B4 model is not available, we can infer its features based on similar Bontempi models like the B409 and B499.

Key Specifications

• Manufacturer: Bontempi
• Type: Portable Electronic Keyboard
• Keyboard: Likely 40-49 midi-size keys
• Polyphony: Probably up to 16 notes

Sound Generation

• Basic Sounds: Likely around 100 polyphonic tones
• Accompaniment Sounds: Possibly 6 polyphonic tones
• Effects: Likely includes Reverb and Sustain
• Styles: Probably 32 rhythms
• DJ Styles: May include 6 styles with effects and loops

Features

• Transposer: Likely range of +/– 6 semitones
• Metronome: Probably with immediate control
• Sequencer: Likely includes REC and PLAY functions
• Automatic Accompaniment: May feature Free Chord and Easy Chord
• Learning System: Possibly includes 5 learning levels
• Demo Songs: Likely includes pre-recorded songs

Controls

• START/STOP
• TEMPO +/–
• MEMORY ON/OFF
• Master Volume
• Numeric keyboard
• Easy Play
• Style and Song selection
• Sound selection

Physical Characteristics

• Amplification: Likely 1.5 watt (RMS) with one or two high efficiency speakers
• Dimensions: Approximately 600-680 mm x 232-240 mm x 63-65 mm
• Weight: Probably between 1.4 – 1.9 kg

Power Supply

• Batteries: Likely 6 x 1.5 Volt IEC R6 / AA batteries
• AC Adapter: Probably AC/DC Adapter – Input Vdc= 9 V / I = 400 mA

Connectivity

• DC Input: For AC/DC adapter connection

Conclusion

The Bontempi B4, while not specifically detailed in the provided information, is likely a feature-rich portable keyboard suitable for beginners and intermediate players. It probably offers a good range of sounds, rhythms, and learning features typical of Bontempi’s educational-focused instruments.