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APx555 Test Report & Pressure-Chamber Calibration GRADE B (SELECT) ⚪ Sold (Archive Reference)

Behringer ECM8000 SN #0X002J90001180

Official APx555 pressure-chamber test report for Behringer ECM8000 SN #0X002J90001180 (Grade B, IEC 61672-1 Class 2 up to 10 kHz, bass span 1.13 dB).

Acoustic Assessment of this Capsule

With a measured sensitivity of 11.73 mV/Pa (-38.6 dBV/Pa, Reference: G.R.A.S. 40AE), this microphone provides a very high output level for low-noise measurements with standard preamps.

-4 dB-2 dB0 dB+2 dB+4 dB+6 dB+8 dB20501002005001k2k5k10k12k20k12 kHz Kammerlimit#0X002J90001180 (11.73 mV/Pa)Behringer ECM8000 #0X002J90001180
Bass Span (31–250 Hz)
Δ 1.13 dB
LFE / Subwoofer accuracy
Midrange Span
Δ 0.26 dB
Reference vocal/mid band
HF-Peak (≤ 12 kHz)
+4.46 dB
@ 11865 Hz (Max: +4.51 dB)
Sensitivity (1 kHz)
11.73 mV/Pa
Offset: -38.6 dBV/Pa

IEC 61672-1 Tolerance Classification by Frequency Band

Minimum (50 Hz – 7.5 kHz)
🛡️ IEC Class 2
RMS: 0.85 dB
Standard (31.5 Hz – 10 kHz)
🛡️ IEC Class 2
RMS: 1.12 dB
Chamber Limit (to 12 kHz)
🛡️ IEC Class 2
RMS: 1.35 dB
Extended (to 16 kHz)
🛡️ IEC Class 2
RMS: 1.59 dB

🎧 Mathematical Stereo Twin (Matched Pair)

The closest acoustic twin in our database is SN #0X001DJDB0001180 (RMS deviation up to 10 kHz: only 0.04 dB).

Direct Order / Quote

#0X002J90001180

Grade B
Base price: 129,00 € incl. 19% VAT (108,40 € excl. VAT)
Included in Base Price:
  • ✓ Brand-new Behringer ECM8000 measurement microphone in carrying case
  • ✓ Individual calibration file (.txt / .cal for REW, Akulap, ARTA, Smaart) for 0°
  • ✓ APx555 measurement report (PDF) assigned to serial number
Optional Measurement Accessories:
+ Mini Tabletop Microphone Stand (Art. TPD_MINI)
+ 17,85 € (15,00 € excl. VAT)
Info ↗
+ Sound Level Calibrator 94 dB / 1 kHz (Art. 7007)
+ 145,00 € (121,85 € excl. VAT)
Info ↗
1x ECM8000 #0X002J90001180 (Grade B) 129,00 €
Total Amount: incl. 19% VAT
129,00 € Net: 108,40 € excl. 19% VAT