BV-38 data sheet

Product catalog summary

Overview: The Bravissimo BV-38 is a 100% digital high-power behind-the-ear (BTE) hearing aid designed by Widex. It offers advanced features to enhance speech intelligibility and listening comfort for individuals with severe to profound hearing loss.

Key Features:

3-Channel DSP: Utilizes digital signal processing for improved sound quality.
Wide Dynamic Range Compression: Maximizes speech intelligibility and comfort.
Automatic Feedback Management: Reduces acoustic feedback.
Variable Crossover Frequencies: Automatically calculated for optimal performance.
Programming Compatibility: Easily programmed with Compass/NOAH or SP3.
Paediatric and ABG Compensation: Includes specialized fitting rationales.
Fine Tuning System: Offers accurate adjustments including MPO, insertion gain, and feedback verification.
Microphone Noise Reduction: Eliminates internal noise for clearer sound.
Sound Stabilizer: Ensures audibility and natural sound quality.
Telecoil Features: Includes equalized frequency response, adjustable gain, and anti-hum filter.
Digital Volume Control: Offers a +/- 6 dB range with beep-tone adjustment indicator.
Long Battery Life: Approximately 490 hours using a zinc air type 675 battery.

Technical Specifications:

Output Levels: OSPL90 at 1600 Hz is 137 dB SPL, with a peak of 143 dB SPL.
Acoustic Output: At 60 dB SPL input, 1600 Hz output is 116 dB SPL.
Max Gain: Special measurement at 1600 Hz is 82 dB.
Telecoil Output: At 10 mA/m input, 1600 Hz output is 107 dB SPL.
Frequency Range: 100 Hz to 5200 Hz.
Harmonic Distortion: At 70 dB SPL input, distortion is 2% at 500 Hz.
Battery Drain: Standby drain is 0.9 mA, with active drain at 1 mA.

Recommended Use: Suitable for severe to profound hearing losses and various configurations including conductive, sloping, and flat losses.

Catalog excerpts

100% digital high power BTE Bravissimo BV-38 features include: • 3 channel DSP (Digital Signal Processing). • Wide Dynamic Range Compression to maximise speech intelligibility and listening comfort. • Automatic Feedback Management for reduction of acoustic feedback. • Automatically calculated variable crossover frequencies. • Easily programmed with Compass/NOAH or SP3. • Fitting rationale calculated from 4 audiometric hearing thresholds. • Paediatric rationale and ABG compensation. Bravissimo BV-38 is a high quality, 100% digital hearing aid engineered in the renowned Widex tradition. The Bravissimo series comprises a complete selection of models helping to give everyone access to the significant advantages of digital hearing aids. Recommended for: • Severe to profound hearing losses. • Most hearing loss configurations including conductive, sloping and flat losses. Suggested fitting range • Flexible and accurate fine tuning system including automatically calculated MPO, Insertion Gain adjustment and Feedback verification, all in 3 channels. • Microphone Noise Reduction eliminates audible internal noise. • Sound Stabilizer combines advantages of fast and slow regulation times to ensure audibility and natural sound quality. • Improved input dynamic range. • M-MT-T program switch. • Equalised telecoil frequency response, adjustable telecoil gain and anti-hum filter. • Digital Volume Control (+/- 6 dB range) with beep-tone adjustment indicator. • Direct audio input. • Tamper resistant battery drawer. • Mini-hook available for small ears. • CROS and BiCROS adaptor available. • Available in 3 standard colours as well as in the modern, transparent colours. • Long battery life of approximately 490 hours, using a zinc air type 675 battery. • Low battery beep-tone indicator. • 1MHz/1bit sigma/delta converters. • 32 kHz/20 bit processing. • Easy and accurate fitting

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Bravissimo BV-38 Maximum output - Ear simulator Maximum output - 2cc coupler Technical data Typical data obtained through standard pure tone measurements. Hearing aid set to linear test mode. OSPL90 Acoustic output (Input 60 dB SPL) Max. gain (special measurement) Telecoil output (Input 10 mA/m) Frequency range Harmonic distortion (Input 70 dB SPL) 1600 Hz Peak Average 1600 Hz Peak Average 1600 Hz Peak Average 1600 Hz Peak Average 500 Hz 800 Hz 1600 Hz Equivalent input noise Battery drain (stand by) Battery drain Battery life (Type 675 Zn-Air, 600 mAh) IRIL (GSM/DECT), IEC 60118-13

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