Buy or Rent a Sound Level Calibrator (AZ8930 & Center 326)
Choose between the budget AZ8930 calibrator (incl. lab calibration certificate), the actively regulated Class 2 Center 326 (280+ sold)—or test the Center 326 first via weekly rental with 100% purchase credit.
- AZ8930 (Art. 7007): Individually measured on our APx555 prior to shipping—includes custom calibration certificate
- Center 326 (Art. 7002): Active internal reference microphone loop (94 & 114 dB)—recommended when using 1/4" adapters
- Unsure or single project? Rent the Center 326 for 1 week (Art. 20002) with 100% credit toward subsequent purchase
Available Versions & Services
Current prices from Dresden stock / lab
Sound level calibrator Center 326
Center 326 sound level calibrator (IEC 60942 Class 2, 94 dB & 114 dB @ 1,000 Hz) with active feedback control loop.
Sound level calibrator AZ8930 incl. calibration certificate
AZ8930 sound calibrator (94 dB, 104 dB, 114 dB @ 1,000 Hz)—verified in our lab prior to dispatch, incl. certificate.
Rental Center 326
Not sure yet? Rent the Center 326 for 1 week. If you decide to buy, we credit 100% of the rental fee toward purchase!
3-Step Procedure
1. Choose Buy or Trial Rental
For 1/2" mics on a budget: buy AZ8930. For regulated Class 2 precision: buy Center 326 or rent it for 1 week first.
2. Optional Adapter
Add matching adapters for 1/4" mics (Art. 7150), Beyerdynamic MM1 (Art. 7151), or Bedrock (Art. 7157) if needed.
3. Create Instant Quote
Generate your official PDF quotation with a single click.
Lab Decision Guide: When Does the AZ8930 (Art. 7007) Suffice vs. the Center 326 (Art. 7002)?
Click to expand technical details and standard references
Lab Decision Guide: When Does the AZ8930 (Art. 7007) Suffice vs. the Center 326 (Art. 7002)?
Click to expand technical details and standard references
We opened and tested both calibrators in our Dresden lab
At first glance, both units generate a 1,000 Hz tone at 94 dB and 114 dB. Inside, however, there is a key engineering difference:
- AZ8930 Calibrator (Art. 7007): Operates without an internal feedback microphone. Because factory units can vary, we measure every single unit in our Dresden lab prior to shipping and document its exact SPL on the included calibration certificate. For 1/2-inch microphones inserted directly without an adapter, the AZ8930 is unbeatable value.
- Center 326 (Art. 7002 Buy / Art. 20002 Rent): Features a dedicated reference microphone inside the coupler cavity that actively regulates the sound pressure. Whenever you use a 1/4-inch microphone with a reduction adapter, the Center 326 automatically compensates for the changed cavity volume.
Tested Lab Quality & 24-Month B2B Warranty
Every new and certified refurbished unit passes our quality inspection routine in Dresden prior to delivery. Individual factory calibration certificates for ISO 9001 audits are available upon request.