Will this work with the model str-k700?

In my experience so far calibration much are universal.

Sony ECM-AC2 Calibration Mic Measurement Microphone

Product ID: 330116989

Details

Brand
Sony
Connectivity technology
Auxiliary
Connector type
3.5 mm Jack
Model name
154277421
Recommended uses for product
Calibration AV

🎯Unidirectional precision

🔊75 dB signal-to-noise ratio

🎛️100 Hz–16 kHz frequency range

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Rp2705436

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎤 Calibrate like a pro, sound like a legend.

PINPOINT ACCURACY - Unidirectional polar pattern captures sound with laser focus for flawless calibration.
TRUSTED SONY QUALITY - Lightweight, durable design backed by Sony’s legacy and 4.7-star user approval.
PLUG PLAY SIMPLICITY - 3.5 mm auxiliary jack offers seamless compatibility with mixers, recorders, and interfaces.
WIDE FREQUENCY MASTERY - Covers 100 Hz to 16 kHz, perfectly tuning your AV setup for immersive sound.
CRYSTAL CLEAR CALIBRATION - 75 dB signal-to-noise ratio ensures ultra-clean audio measurements every time.

The Sony ECM-AC2 Calibration Mic is a professional-grade, unidirectional measurement microphone designed for precise AV receiver calibration. Featuring a 75 dB signal-to-noise ratio and a broad 100 Hz to 16 kHz frequency range, it ensures accurate sound tuning. Compatible with audio mixers, interfaces, and recorders via a 3.5 mm jack, this lightweight, corded mic is a trusted tool for audiophiles and professionals seeking flawless audio performance.

Specifications

ASIN	B075QGCLWR
Antenna Location	Calibration Optimizer Microphone for Speakers SONY AV Receiver
Audible Noise	75 Decibels
Brand	Sony
Built-In Media	Microphone
Color	Black
Compatible Devices	Audio Interface, Audio Mixer, Voice Recorder
Connectivity Technology	Auxiliary
Connector Type	3.5 mm Jack
Customer Reviews	4.7 out of 5 stars 482 Reviews
Enclosure Material	Plastic
Frequency Range	100 hz 16 khz
Impedance	2200 Ohms
Item Dimensions	12.7 x 8.9 x 1.8 centimeters
Item Weight	0.09 Pounds
Manufacturer	Sony
Mfr Part Number	43235-69996
Microphone Form Factor	Handheld
Model Name	154277421
Model Number	154277421
Number of Channels	1
Polar Pattern	Unidirectional
Power Source	Corded Electric
Signal-to-Noise Ratio	75 dB
Special Feature	Auto Calibration Measurement Optimizer Setup Microphone for AV Receivers

Reviews

N**S

It works

21.02.2026

R**R

Good replacement

5.12.2025

J**.

Sony mic

7.03.2026

J**E

It works

1.12.2025

A**D

A bit pricey, but you might not have a better option.

19.01.2026

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