The readings I getting don’t make sense I am testin a Bogen SPT 15A I get a reading of 8 ohms at 10x divided by 4900 is 64 what am I doing wrong

That horn has a selector to choose wattages via 25v/70v, or if you have the spt-158a is 8 ohms. So do you have a 70voly system or 8 ohms

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ZM-104A Impedance Meter, Measures Impedance of Speaker Lines Up to 100k Ohms, Zero Adjustment for Accuracy On All Ranges, Easy to Read Meter Calibrates Directly in Ohms

Product ID: 260569171

Details

Brand
Toa
Power source
Battery
Style
Modern
Colour
Black
Item weight
700 Grams

🎯Zero adjustment for pinpoint accuracy

📏Measures up to 100k Ohms

📐Direct ohm calibration for effortless readings

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29928349₫

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Tune into precision, measure with confidence!

ALL IN ONE KIT - Comes complete with carrying case, test leads, and an impedance-to-power reference chart for ultimate convenience.
OPTIMIZE YOUR SOUND - Empower your audio projects with precise impedance measurements that maximize speaker performance.
EFFORTLESS READABILITY - Easy-to-read meter calibrated directly in ohms for quick, no-fuss diagnostics.
CALIBRATE WITH CONFIDENCE - Zero adjustment feature guarantees reliable readings across all measurement ranges.
PRECISION AT YOUR FINGERTIPS - Accurately measures speaker line impedance up to 100k Ohms, ensuring flawless audio setups.

The TOA ZM-104A Impedance Meter is a professional-grade tool designed to measure speaker line impedance up to 100k Ohms with high accuracy. Featuring zero adjustment for calibration across all ranges and an easy-to-read meter calibrated directly in ohms, it ensures precise diagnostics. The package includes a carrying case, test leads, and an impedance-to-power reference chart, making it an essential device for audio professionals and enthusiasts aiming for optimal sound performance.

Specifications

ASIN	B004KO1AS8
Best Sellers Rank	#148,685 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #65 in Sound & Noise Meters
Brand	TOA
Brand Name	TOA
Color	Black
Customer Reviews	4.0 out of 5 stars 19 Reviews
Item Dimensions	10 x 6 x 3 inches
Item Weight	700 Grams
Item dimensions L x W x H	10 x 6 x 3 inches
Lower Temperature Rating	23 Degrees Celsius
Manufacturer	TOA Electronics
Measurement Type	Ohmmeter
Minimum Operating Voltage	6 Volts
Model	ZM-104A
Power Source	Battery Powered
Specification Met	Cat I
Style	Modern
Style Name	Modern
Unit Count	1.0 Count
Upper Temperature Rating	104 Degrees Fahrenheit

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TrustScore 4.5 | 7,300+ reviews

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