- Professional Audio Tool – Precision AC impedance meter with 10Hz–20kHz range for accurate system diagnostics and tuning.
- Exclusive Auto-Lock Feature – Automatically detects impedance peaks and valleys for fast, reliable measurements.
- All-in-One Solution – Measure impedance, set crossovers, tune enclosures, and verify driver T/S parameters with one device.
- Versatile Testing – Works on speakers, RCA cables, wire runs, and passive crossover networks for complete system analysis.
- Smooth Frequency Control – Super smooth frequency knob with selectable Low, Mid, High ranges for fine adjustments.
SMD IM-SG+ Steve Meade Designs Impedance Meter / Signal Generator Plus
This Listing Includes:
- (1) SMD IM-SG+ Meter /SGP
- (1) Impedance test harness
- (1) Y-adapter
- (1) User Manual
The Steve Meade Designs IM-SG+ is a pro-grade tool engineered to simplify system diagnostics, tuning, and testing. Designed with D'Amore Engineering, it delivers reliable measurements for raw drivers, loaded enclosures, crossover networks, cables, and multi-speaker systems across the full audio frequency range.
Powered by a 9V battery for noise-free operation, the IM-SG+ avoids the interference issues found with wall or vehicle adapters. Its intuitive controls include a smooth rotary knob, easy-to-read display, and range button with multiple modes for precision. The IM-SG+ combines four analog blocks: a sine wave generator, a pink noise generator, an analog amplifier, and an instrumentation amplifier. Driven by a powerful digital microprocessor for unmatched accuracy.
Whether you’re testing speaker impedance, locating vehicle rattles, tuning a crossover, or analyzing enclosure performance, the IM-SG+ is a must-have for serious installers, competitors, and enthusiasts.
Features:
- Precision AC impedance meter with 10Hz - 20kHz range
- Stand-alone sine wave and pink noise generator
- Auto-lock for quick impedance peak/valley detection
- Min/Max impedance hold modes for advanced analysis
- Harness compensation for highly accurate T/S parameter testing
- Extended battery life with 9V battery operation
- Test raw drivers, enclosures, crossover networks, RCA cables, and speaker wire
- Find resonant frequencies in speakers, vehicles, or rooms for tuning and SPL optimization
- Detect rattles and vibration points with signal sweeps
- Safely determine the system impedance load to ensure amplifier stability
Specifications:
- Impedance Measurement Range 1 ohm - 100 ohms with 0.1ohms resolution
- Low Impedance Measurement Range 0.00 ohm- 0.99 ohms with 0.01 ohms resolution
- Operating Range of Battery for tool accuracy 6.4 Volts - 10.5 Volts
- Sine Wave Generation Frequency Range greater than 8Hz - 20kHz in two ranges
- Frequency Measurement Accuracy greater than 99.5%
- Impedance Measurement Accuracy greater than 99% from 0 ohms - 30 ohms greater than 96% from 30 ohms - 99 ohms
- Pink Noise Generation Flatness 20 Hz - 20 kHz +/- 2.0dB
- Sine Wave Generation Frequency Response 10 Hz - 15 kHz +/- 0.8dB 10 Hz - 20 kHz +/- 1.5dB
- Battery Voltage Low Warning 7.2 Volts
- Generator Output Voltage (unloaded) 725 mV RMS
- Output Impedance of Signal Generator 10 ohms
Dimensions:
- Length: 9"
- Width: 6"
- Height: 2"
Accepted Payment Methods at Big Jeff Audio
At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:
Credit and Debit Cards
- Visa
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International Payment Methods
Bank Transfers
Financing Options
We also offer financing options to make purchasing easier. Learn more about our financing options here.
- Klarna
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- Tiptop
If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.
Shipping Options and Delivery Time
Do You Offer Expedited Shipping?
Yes! At checkout, you can select from different shipping options:
- Standard Shipping: Free for orders over $100.
- Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.
How Long Does Delivery Take?
- Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
- Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.
What Happens If My Package Is Undeliverable?
If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.
Why Can’t I Track My Order?
If you're having trouble tracking your order:
- Make sure you’ve received the shipping confirmation email with the tracking number.
- Log into your account on our website and use the “Check Your Order Status” button.
- If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.
