Truetone 1 Spot 9V/DC

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$27.99 to $33.19

4.5 (7)

1 Critic Review

Find out who is using Truetone 1 Spot 9V/DC

3 community setups

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Page last updated Jul 04, 2026

Pricing and availability

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4.0 (103)

$27.99

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4.5 (133)

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4.8 (1001)

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4.8 (660)

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Based on price data from 3 merchants for "Truetone 1 Spot 9V/DC". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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When it comes to powering your pedalboard, the Truetone 1 Spot 9V/DC is the unsung hero that musicians around the world rely on. This compact powerhouse supplies a whopping 1700 mA of current, ensuring that your array of pedals stays in top form without a hitch. Its ability to automatically adapt to international voltages (100 V to 240 V) makes it a must-have for the globetrotting guitarist. With a generous 3-meter connection cable, it offers the flexibility and reach needed for any setup, whether you're jamming at home or on stage. The 1 Spot's design is streamlined and efficient, featuring a positive outside and negative inside configuration (2.1 mm / 5.5 mm), compatible with a wide range of pedals. Say goodbye to the clutter and noise of multiple power supplies and embrace the simplicity and reliability that the Truetone 1 Spot 9V/DC brings to your musical adventures.

Key Features:

Voltage: 9 V, 1700 mA
Automatically switches between international voltages (100 V / 240 V)
Connection cable: approx. 3 meters
Plus outside, minus inside (2.1 mm / 5.5 mm) configuration

Owner's manual

Truetone 1 Spot 9V/DC User Manual

Product specs

Available since	October 2010
DC/AC current	DC
Output current in mA	1700 mA
9 V	Yes
12 V	No
18 V	No
Secondary voltage	No
Multi-output power supply	No

FAQs

How many pedals can the Truetone 1 Spot 9V/DC power at once?: The Truetone 1 Spot 9V/DC can power multiple pedals with a total output current of up to 1700mA, depending on the power requirements of each pedal. You can use the Multi-Plug 4 Cable (sold separately) to connect up to 4 pedals, and additional cables can extend this capacity.
Is the Truetone 1 Spot 9V/DC compatible with international voltage standards?: Yes, the Truetone 1 Spot 9V/DC automatically converts voltage worldwide, making it suitable for use in different countries without needing a separate voltage converter.
Does the Truetone 1 Spot 9V/DC produce noise when powering pedals?: The Truetone 1 Spot 9V/DC is designed to be one of the quietest power sources available, minimizing noise and ensuring a clean power supply to your pedals.
What types of pedals is the Truetone 1 Spot 9V/DC compatible with?: The Truetone 1 Spot 9V/DC is compatible with a wide range of adapters, including Boss PSA, Boss ACA, DOD PS-200R, Morley 9V, Danelectro DA-1, Dunlop ECB-003, Ibanez AC109, and Zoom AD-0006.
How long is the power cable on the Truetone 1 Spot 9V/DC?: The Truetone 1 Spot 9V/DC features a 10-foot long cable, providing ample length to reach your pedalboard from a power outlet.

Videos

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intheblues

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Reviews

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PROS

Compatible with older keyboards and specific power requirements
High-power (1.7A) capacity supports power-hungry devices
Europlug-style design saves space
Robust, well-made cable ensures durability
Versatile for studio use with various musical equipment
Some users find it the best power supply available

CONS

May generate hissing noise unrelated to sound source
Can introduce high-frequency noise in systems
Noise issues with pedals having inadequate power-supply filtering
Cable length may be insufficient for some setups

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Truetone 1 Spot 9V/DC.

Features and functionality

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The Truetone 1 Spot is a non-isolated power supply, suitable for small pedalboards and home use but may introduce noise with certain pedals.
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The 1 Spot's center-negative polarity matches Boss pedals, ensuring compatibility without modifications.
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The Voodoo Labs Pedal Power 2 can resolve noise issues and offers specific outputs (possibly 5 or 6) that work well with the Whammy 5 pedal.
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User experience

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Many users report long-term satisfaction, with some using the 1 Spot for over 15 years without plans to replace it.
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Users report stable performance with daisy-chaining up to five pedals, often without noticeable noise with non-isolated setups.
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Some users find the Boss PSU adapter produces less noise than the 1 Spot when powering multiple pedals, especially in larger setups with up to 10 pedals.
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Use cases and applications

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Ideal for players with small pedal setups; however, it's noted that noisy pedals might require separate power solutions to avoid interference.
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Suitable for daisy-chaining up to four pedals, provided their combined current draw is under 2000mA.
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The Truetone 1 Spot may cause a slight ringing sound with the Whammy 5 pedal, suggesting the need for an isolated power supply for optimal performance.
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Comparisons

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Compared to options like the MXR IsoBrick or Strymon power supplies, the 1 Spot is less expensive but may not mitigate noise as effectively.
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Offers a budget-friendly alternative to isolated power bricks for setups with minimal noise sensitivity.
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A Voodoo Labs power supply reportedly enhances tone clarity and reduces noise compared to daisy-chained setups, acting like premium fuel in a vehicle.
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Value and pricing

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At around $20, the 1 Spot offers good value for non-demanding setups, though reliability can vary, with some units failing after a year.
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Setup and maintenance

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It's critical to monitor the total current draw of connected pedals, keeping it under the 800mA limit to ensure proper function.
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Users have observed that some pedals behave differently when not powered adequately, affecting tone and performance, which isolated power supplies can mitigate.
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Critic Reviews

Truetone 1 Spot 9V DC Review - Switching Power Supply

cigilovic.com

Truetone's 1 Spot 9V/DC power supply is compact and versatile, capable of powering numerous pedals with its 1700mA output and international voltage adaptability. While praised for its efficient design and widely positive user feedback, the review highlights issues with unexplained noises when used with specific gear, raising concerns about potential interference in signal chains. Despite an inconclusive investigation into these anomalies, the device's functionality remains unaffected. The reviewer, however, has opted for a quieter alternative, citing dissatisfaction with the noise factor. Overall, it's a practical solution for many, but potential buyers should be cautious of compatibility issues.

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Full Review

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4.5 out of 5

Based on 0 Reviews and 7 Ratings

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