Bruel & Kjaer 4222 Anechoic Test Chamber 100 Hz-10 kHz

Description: Bruel & Kjaer 4222 Anechoic Test Chamber Comes with what you see in the pictures. If you don't see it, you probably won't get it. Specifications are from Bruel & Kjaer and may vary slightly due to upgrades, options, or revisions this unit may or may not have. This unit has some knicks and scratches on it but is in good condition. It is guaranteed to work. Serial Number: 836332 Applications: Rapid and reliable testing of hearing aids and microphones in a uniform sound field Investigations into hearing aids, microphones, and earphones Features: Approximates the free-progressive sound field as specified by IEC 118 SPL at microphone opening confirms to ASNI S3.22-1992 Wide frequency range from 100 Hz to 10 kHz Total harmonic distortion less than 0.5% up to 70 dB SPL Uniform sound field across the measurement plane Usable for pressure microphones down to 100 Hz Usable for ordinary pressure gradient microphones down to approx. 400 Hz Provides good insulation response even without compression Description: The Anechoic Test Chamber Type 4222 is small anechoic chamber with a built-in sound source. It is intended for use with external instrumentation such as the Audio Test Station Type 2118, or Measuring Amplifier, Sine Generator and Level Recorder for measurements on small test items such as hearing aids and microphones. The design of the chamber provides well-defined uniform test conditions and a high degree of insulation from external noise, especially at low frequencies, important requirements for obtaining accurate and repeatable measurements. Specifications: Frequency Range: 100 Hz to 10 kHz Dynamic Range: From below 50 dB to above 90 dB SPL (re. 20 µPa) Measuring Region: Circular with a diameter of 50 mm Uniformity of the Sound Field: The free-frield sound level within the measuring region is equal to the regulated SPL within: 250 Hz: ±0.1 dB 500 Hz: ±0.3 dB 1000 Hz: ±0.4 dB 2000 Hz: ±0.4 dB 4000 Hz: ±0.9 dB 6000 Hz: ±1.2 dB 10000 Hz: ±2.5 dB Insulation Against Airborn Noise: 100 Hz: ≥20 dB 200 Hz: ≥31 dB 500 Hz: ≥32 dB 1000 Hz: ≥34 dB 2000 Hz: ≥38 dB 10000 Hz: ≥40 dB Loud Speaker: Specifically designed 5 W, Impedance 8 Ω Sensitivity: 0.8 V RMS produces 90 dB SPL at 1 kHz Distortion: < 0.5% total harmonic distortion at 70 dB SPL Dimensions: Overall Height: 1060 mm (42") Max. Diameter: 715 mm (28") Weight: 40 kg. (88 lb) $75.00 minimum for packaging, handling, and order processing. Shipping to be determined by destination. Prior to shipment I will need to know the following information (filled out on a form that I will send you) for International Customers or Packages/Freight being Forwarded internationally. International customers may also be subject to a freight forwarder form if applicable.: (1) Are you the end-user of this item? (2) If you are not the ultimate end-user of the item, please state the ultimate end user's name. (3) What is the ultimate country destination? 05/04/24

Price: 6018.99 USD

Location: Phoenix, Arizona

End Time: 2024-08-04T18:46:26.000Z

Shipping Cost: N/A USD