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NVX XTGSP2

Tone Generator and Speaker Polarity Tester

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• Tone Generator • Speaker Polarity Tester
• Perfect Troubleshooting and Testing
• Output Range of 0-8 Volts
• Includes RCA and Alligator Clips
• 9V Speaker Popper • Auto Shutoff

Learn more about the xtgsp2
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2026-07-27 11:08:20
List price $39.99
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Product Highlights


• Tone Generator • Speaker Polarity Tester
• Perfect Troubleshooting and Testing
• Output Range of 0-8 Volts
• Includes RCA and Alligator Clips
• 9V Speaker Popper • Auto Shutoff

Description


NVX brand icon

Authorized dealer

NVX XTGSP2 Tone Generator and Speaker Polarity Tester

The NVX XTGSP2

The NVX XTGSP2 is perfect for safely troubleshooting and testing audio systems. Offers an output range of 0-8 volts at a variable 13 to 10,000 Hz tone for setting system levels, checking speaker x-over points, verifying connections and general trouble shooting. The XTGSP2 also has a 9v speaker popper for visually testing speaker connection polarity. Connections can be made via supplied RCA or alligator clips. It features an auto shutoff for extended battery life. It is a very small size, making it easy for hand held use and is also designed with rotary control knobs for easy tone and level adjustments.



General Features:

  • Tone Generator and Speaker Polarity Tester
  • Perfect for safely troubleshooting and testing audio systems
  • Output range of 0-8 volts at a variable 13 to 10,000Hz tone
  • Use for:
    • Setting system levels
    • Checking speaker crossover points
    • Verifying connections
    • General trouble shooting
  • 9V Speaker popper for visually testing speaker connection polarity
  • Includes RCA and alligator clips for connection
  • Auto shutoff for extended battery life
  • Control knobs for easy tone and level adjustments
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Frequently Asked Questions (FAQ)


Your subwoofers are likely out of phase, meaning they are "fighting" each other. Use the NVX XTGSP2 Tone Generator to verify polarity. Ensure the positive and negative terminals on both the amp and sub match perfectly to restore bass.
This is often a signal issue. Use the NVX XTGSP2 to send a test tone directly into the amp’s RCA inputs. If sound plays, your source unit or RCA cables are the culprit. If not, check your speaker wiring for shorts or "protect mode" triggers.
Improper polarity is the #1 cause of poor sound after an upgrade. Use the NVX XTGSP2 Speaker Polarity Tester to "pop" the speakers and visually confirm the cones move in the same direction, ensuring they are in sync for full audio impact.
Modern factory systems often require a specific "load" to output audio. Use the NVX XTGSP2 Tone Generator to verify the signal path from the LOC to the amp. Also, ensure your taps are secure and not grounding out against the vehicle's frame.
Use the NVX XTGSP2 to sweep high-frequency tones (up to 10,000Hz) at a low voltage. This allows you to safely verify that the tweeter is receiving a signal and is properly connected to the high-pass side of your crossover before full power.

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Item Details


Manufacturer:

NVX

Model Number:

XTGSP2

Weight:

0.99lbs

Internal SKU:

xtgsp2

Internal Product ID:

94724

Product and How-to Videos


Customer Ratings & Reviews


NVX XTGSP2 thumbnail image

5 star
75%
4 star
25%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Awesome product

A must have for testing speakers. Very reasonably priced too.

By brian on November 8, 2020 Checkmark Icon Verified purchase

41 found this helpful


A must have for the audio nerd!

I bought this after watching Five Car Stereo and Sonic Electronics using this. Awesome multi function tool!

By Johnny on January 10, 2020 Checkmark Icon Verified purchase

39 found this helpful


Good product

for those who want a small device that can search loudspeaker crossovers, this product is essential. it also allows to find cuts in rca cables as well as to see the polarities of speakers. a simple tool, easy to use. small concern: the user manual is not provided and explanations on the net are absent contrary to its concurent the PAC. however I recommend

By Anonymous on May 3, 2019 Checkmark Icon Verified purchase

38 found this helpful


Cheap but effective

This is a very good way to double-check yourself it also has a test tone generator and is a lot cheaper than SMD products. This product will check speaker polarity pre out continuity and has test tone generator this is a good product the long one

By Jeff on April 1, 2020 Checkmark Icon Verified purchase

35 found this helpful


tools are good

good tool for the $$. you can have a test tone for checking polarity on speakers to checking that your channels are left or right .

By Anonymous on May 15, 2019 Checkmark Icon Verified purchase

34 found this helpful


By Jason on March 22, 2024 Checkmark Icon Verified purchase

12 found this helpful


Excellent value and fast shipping. Received item in only a few days! Quality tool for my audio testing.

By Richard on April 22, 2024 Checkmark Icon Verified purchase

6 found this helpful


By Christopher on March 20, 2026 Checkmark Icon Verified purchase



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