What is the difference between an active and a passive direct box?

A passive direct box uses a transformer and needs no power, working well with high-output or active-electronics instruments. An active direct box contains a powered preamp (via phantom power or battery) and is well suited to low-output passive pickups such as many electric guitars and basses. Choose based on your instrument's output level and whether power is available. This Pyle unit is passive.

Do I need a direct box if my mixer already has instrument inputs?

A direct box converts a high-impedance unbalanced instrument signal into a balanced low-impedance signal, letting you run long cable lengths to a mixer or recording interface without noise or signal loss. It also often includes a ground lift switch to remove hum. If your setup involves long cable runs or hum issues, a DI box improves signal integrity, even with mixers that have instrument inputs.

How do I connect the Pyle Hum Eliminator Box?

Connect your instrument or audio source's unbalanced output (e.g., guitar, keyboard) to the 1/4" TRS phone or XLR input on one channel of the Pyle Hum Eliminator. Then, connect the corresponding output from the eliminator to your mixer, audio interface, or amplifier's balanced input. The device automatically handles the signal conversion.

Will this Pyle Hum Eliminator remove all types of audio noise?

This Pyle Hum Eliminator is specifically designed to remove 60Hz AC hum caused by ground loops. It is highly effective for this common issue. However, it may not eliminate other types of audio noise such as digital interference, static, or microphone hiss, which can have different sources.

Can I use this hum eliminator for stereo signals?

Yes, the Pyle Hum Eliminator Box is a 2-channel device and can accept mono or stereo connections. You can use one channel for a mono source or connect stereo signals by using both channels independently for left and right audio paths.

How to buy an original Pyle Hum Eliminator Box in India?

Ensure you purchase from authorized US retailers like CrowCrowCrow, who import genuine products directly. This Pyle Hum Eliminator Box is factory-sealed, sourced from authorized US retailers, and imported per-order. All customs duties and GST are included in the listed price, and your order is shipped via ExpressBox tracked delivery.

Pyle 2-Channel Ground Loop Isolator

Name: Pyle 2-Channel Passive Ground Loop Isolator with 1/4" TRS Phone & XLR Input/Output - Noise Filter
Brand: Pyle
SKU: nbz7326
Price: 3929.00 INR
Availability: InStock

About this item

The Pyle Compact Mini Hum Eliminator Box is engineered to eliminate annoying 60Hz AC hum and ground loop noise that can plague audio setups. This passive device requires no external power, making it incredibly versatile for both studio recording and live performance environments. Its compact and portable design ensures you can easily take it anywhere your sound needs to be clean and clear.

Equipped with two channels, each featuring 1/4" TRS phone and XLR inputs and outputs, this isolator automatically converts unbalanced signals to balanced without any loss of audio quality. The core of its effectiveness lies in the 1:1 isolation transformer, which safely breaks the ground loop, preventing buzz and ensuring a pristine, distortion-free sound. It accepts mono or stereo connections, offering flexibility for various audio configurations.

For musicians and audio professionals in India, this Pyle Hum Eliminator provides a reliable solution to common noise issues. All customs duties and GST are included in the listed price, and your order is shipped via ExpressBox for tracked delivery. Experience clearer audio without the buzz.

Key Features

REMOVES AC NOISE: The Pyle Hum Eliminator removes 60Hz AC hum caused by ground loops that act like radio antennae (loop antenna). It breaks the ground loop safely making it impossible for the signal lines to pick up the AC noise in the first place
PASSIVE DEVICE: The noise isolator is a passive device that does not require power to operate. Equipped w/ ¼” TRS phone and XLR inputs and outputs on 2 channels. Automatically converts unbalanced to balanced signal without any signal loss
COMPACT DESIGN: This noise filter device features a high-performance ultra-compact and portable design allowing you to easily bring it anywhere. It has high-quality components and rugged construction while maintaining the highest sonic quality
1:1 ISOLATION TRANSFORMERS: The 1:1 isolation transformer is responsible for breaking the ground loop or the loop antenna that prevents buzz for a clear sound. Also responsible for balancing audio lines. The device accepts mono or stereo connections
WORRY-FREE SHOPPING: With the PylePro PHE400 Hum/Noise Eliminator, we are confident of the quality of our product, therefore, we offer a 30-day money-back guarantee, no questions asked

Why choose this product

Pristine Audio Through Isolation

Ground loops are a common source of frustrating AC hum in audio systems, acting like unintended radio antennae. The Pyle Hum Eliminator Box tackles this directly. Its passive design and 1:1 isolation transformer safely break these loops without affecting your audio signal's integrity. This means cleaner recordings, clearer live sound, and a more professional listening experience. Unlike active solutions that might introduce their own noise, this unit focuses purely on eliminating unwanted buzz, ensuring your music or sound is heard exactly as intended, free from distracting interference.

Ideal for Musicians & Podcasters

This hum eliminator is perfect for guitarists, bassists, keyboardists, and podcasters who connect their instruments or microphones to mixers or audio interfaces. If you experience a persistent 60Hz buzz, especially when running long cable lengths or using multiple pieces of equipment, this device is for you. It's particularly useful for live sound engineers managing multiple channels and seeking to minimize noise floor. Those with active instruments or mixers that supply phantom power will find its passive nature a simple, effective solution. If you're experiencing hum from your amplifier or audio interface, this box can resolve it.

How to use

Plug your unbalanced audio source, such as a guitar, keyboard, or microphone, into the 1/4" TRS phone or XLR input on one channel of the Pyle Hum Eliminator Box. — Connect Instrument Output
From the corresponding 1/4" TRS phone or XLR output on the same channel of the eliminator, connect a cable to the balanced input of your mixer, audio interface, or amplifier. — Connect to Mixer/Interface Input
Turn on your audio system and check the sound. The hum eliminator should have automatically converted the signal and removed the 60Hz AC ground loop noise without affecting audio quality. — Verify Signal and Noise

Example scenarios

Typical situations where Pyle Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator with 1/4" TRS Phone & XLR Input/Output helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

A musician in Delhi experiences a persistent 60Hz hum from their guitar amp when connected to a mixer via long cables.

How this product helps

Using the Pyle Hum Eliminator Box between the instrument and mixer breaks the ground loop, eliminating the hum. This ensures a clean signal for live performances or practice sessions, allowing for better sound quality without distracting noise.

Scenario 2

Illustrative example

Where it helps

A home studio owner in Bangalore notices AC buzz when recording vocals through a condenser microphone connected to an audio interface.

How this product helps

Connecting the microphone's output through the Pyle Hum Eliminator Box to the audio interface can isolate the ground loop causing the buzz. This results in cleaner vocal tracks, reducing post-production noise reduction needs and improving overall recording clarity.

Specifications

Composition

Transformer Type	1:1 Isolation Transformer
Input Connectors	1/4" TRS Phone, XLR
Output Connectors	1/4" TRS Phone, XLR
Channels	2

Usage

Power Requirement	Passive (No external power needed)
Signal Conversion	Unbalanced to Balanced
Frequency Response	60Hz - 20kHz (typical for audio signal pass-through)
Noise Reduction	Eliminates 60Hz AC Hum & Ground Loop Noise
Cost per use	1 unit at ₹3,929 — ₹3,929 per unit
Shelf life after opening	N/A (Durable electronic component)
Contraindications	Not suitable for eliminating non-ground-loop related noise or digital interference.
Allergens / common irritants	N/A

How we compare

Feature	Pyle Compact Mini	Others
Hum Elimination	Effectively removes 60Hz AC hum via 1:1 isolation transformer.	Varies by brand; some may use transformers, others active circuits; effectiveness for ground loops can differ.
Power Requirement	Passive device, requires no external power.	Some are passive, others require phantom power (48V) or batteries.
Connectivity	2-Channel with 1/4" TRS Phone and XLR inputs/outputs.	Typically offers similar 1/4" and XLR options, channel count may vary.
Signal Conversion	Automatically converts unbalanced to balanced signal without loss.	Most DI boxes perform this function; quality of conversion can vary.
Cost per unit	1 unit at ₹3,929 — ₹3,929 per unit	Local options may range from ₹1,500 - ₹5,000 depending on brand and features.

SKU	nbz7326
GTIN	00068888738293
Brand	Pyle
Model Name	Compact Mini Hum Eliminator Box
Part Number	PHE400
Color	Charcoal
Material	Steel
Dimensions (L x W x H)	6.2" x 2.5" x 7.2" (15.7 cm x 6.3 cm x 18.3 cm)
Weight	0.9 lbs (0.41 kg)
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers

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Pyle Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator with 1/4" TRS Phone & XLR Input/Output

color: Charcoal

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