Measured at: 18.04.2024 14:47:54
APx555 Test Report & Pressure-Chamber Calibration GRADE C ⚪ Sold (Archive Reference)
Behringer ECM8000 SN #0XDJDD0406SA6
Official APx555 pressure-chamber test report for Behringer ECM8000 SN #0XDJDD0406SA6 (Grade C, IEC 61672-1 Class 2 up to 10 kHz, bass span 0.80 dB).
Acoustic Assessment of this Capsule
The measured low-frequency ripple (31.25 – 250 Hz) is extremely low at 0.80 dB. This unit technically qualifies for high-precision LFE and subwoofer measurements.
Bass Span (31–250 Hz)
Δ 0.80 dB
LFE / Subwoofer accuracy
Midrange Span
Δ 0.26 dB
Reference vocal/mid band
HF-Peak (≤ 12 kHz)
+6.10 dB
@ 11865 Hz (Max: +6.10 dB)
Sensitivity (1 kHz)
11.34 mV/Pa
Offset: -38.9 dBV/Pa
IEC 61672-1 Tolerance Classification by Frequency Band
Minimum (50 Hz – 7.5 kHz)
🛡️ IEC Class 2
RMS: 0.99 dB
Standard (31.5 Hz – 10 kHz)
> Class 2
RMS: 1.35 dB
Chamber Limit (to 12 kHz)
> Class 2
RMS: 1.70 dB
Extended (to 16 kHz)
> Class 2
RMS: 2.05 dB
🎧 Mathematical Stereo Twin (Matched Pair)
The closest acoustic twin in our database is SN #D180503549 (RMS deviation up to 10 kHz: only 0.09 dB).
Direct Order / Quote
#0XDJDD0406SA6
Grade C Base price: 119,00 € incl. 19% VAT (100,00 € 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)
+ Sound Level Calibrator 94 dB / 1 kHz (Art. 7007)
+ 145,00 € (121,85 € excl. VAT)
1x ECM8000 #0XDJDD0406SA6 (Grade C) 119,00 €
Total Amount: incl. 19% VAT
119,00 € Net: 100,00 € excl. 19% VAT