Name: Resonance r25c Combined Middle Ear Analyzer
Brand: Resonance

Overview

The Resonance r25c combines a full diagnostic middle-ear analyzer with a diagnostic audiometer: tympanometry, acoustic reflex and reflex decay alongside pure-tone and speech audiometry.

It has a 7" colour display, a built-in thermal printer and a “children” feature that shows animated images during Quick Check to keep young patients distracted.

Key features

Tympanometry

226 Hz probe tone, automatic pressure +200 to −400 daPa.

Acoustic reflex

Ipsilateral and contralateral, threshold/automatic/manual, with reflex decay.

Audiometry

Pure tone, auto-threshold, ABLB, speech, Stenger, GAP, DLF.

Children feature

Animated images during Quick Check.

Reports

Thermal printout, PDF to USB, PC transfer with Resonance MDS.

Certified

Class IIa; ISO 13485 / ISO 9001; CE and FDA.

Models & options

Standard: 226 Hz probe, ear-tip kit (6–15 mm), calibration cavity, DD45 contra, audiometry headset, B71W, thermal printer
Options: “MS” silicone tips, insert/TDH39 for contra, IP30 inserts, B81, free-field speaker

Tests	Tympanometry, Acoustic Reflex, Reflex Decay, Quick Check, Quick Screening, Pure Tone, Autothreshold, ABLB, Speech, Stenger, GAP, DLF
Probe tone	226 Hz · 85 dB SPL ±2 dB
Compliance range	0.05–7 ml
Pressure	+200 to −400 daPa (50 daPa steps), sweep 50–300 daPa/s
Acoustic reflex	Ipsi 500–4000 Hz (50–110 dB HL) · Contra 250–8000 Hz (50–120 dB HL)
Frequency range	125–8000 Hz (DD45) · up to 12.5 kHz (HDA280)
Level range	−10 to 120 dB HL
Display	7" TFT colour
Size & weight	370 × 290 × 180 mm · 3.5 kg
Standards	IEC 60645-5 / ANSI S3.39 Type 2 · IEC 60645-1/-2 · Class IIa

r25c Combined Middle Ear Analyzer