The 10 Best mono DI Boxes (2023 reviews)

We consider a mono di box to be a worthy investment in the long run. We are here to help you choose the right one for your needs from all the best available products in market today.

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Our Top Picks:

Best overall: Buy: Pyle mono DI Box READ REVIEW

Best For computer: Buy: Radial Engineering Passive Direct Box READ REVIEW

Best For home recording: Buy: Donner mono DI Box READ REVIEW

Best For Stereo sources: Buy: Mackie mono DI Box READ REVIEW

Best For price: Buy: Samson signal level READ REVIEW

Best With headphone out: Buy: Whirlwind mono DI Box READ REVIEW

Best With EQ: Buy: Fishman mono DI Box READ REVIEW

Best With Phantom Power: Buy: Radial Engineering mono DI Box READ REVIEW

Best For drum: Buy: Klark Teknik mono DI Box READ REVIEW

Best For microphone: Buy: Samson mono DI Box READ REVIEW

Best overall: Pyle mono DI Box

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Pyle line of box come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. It is great for any stereo. It is made of metal, feels sturdy, and the connectors fir snug. It is a dual channel di which can run two mono or a stereo setup. It reduces stage clutter, noise and signal loss from long instrument cable runs. It's inexpensive and works great as advertized.

The purpose of this box is to convert unbalanced to balanced for noise reduction. It is built to be used with signals alike for example stereo keyboards or similar cable runs. This device also has some ground lift switches that can prevent ground loops. It is built to be used with signals alike for example stereo keyboards or similar stereo setup.

• More hum or any other annoying signal noise
• Works very nicely as a passive di
• New and hot release

Best For computer: Radial Engineering Passive Direct Box

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The radial engineering passive direct box gives the top-tier box a run for their money by offering flagship specs at a much more affordable price. It is great for keyboard players for stereo. Because they are 2 channel, they are particularly handy for stereo instruments like keyboard, or guitar through stage effects processors. It has pad and ground lift options for noisy environments. The ground lift and pad make it so versatile that it's nearly idiot-proof. It reduces the clutter and the clunkiness of two d1s taped together.

What really sets this di box apart is its durability. It is truly an interference and artifact trap. Because it is very well constructed.

• Hums or any kind of distortions, the sound quality is real good
• Very solid and reliable and great signal quality
• New and hot release

Best For home recording: Donner mono DI Box

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Best part: donner mono di box costs comparatively low and it is available to ship in 24 hours. This direct box does NOT have noise suppression built in. It is a compact passive direct box that is perfect for guitartbasses and keyboards. It is magical in its ability to handle extreme signal levels with a natural compression that is pleasing to the ears. The input is connected to a single coil, and this is placed next to 2 coils which connect to the XLR output. The output impedance of the di box is directly correlated to the number of windings in the output coils, but only slightly correlated to the impedance of the input coil, so there is no need for a switch or a separate coil to accept different inputs.

There is nearly no complaints, it’s small and versatile, it’s simple and effective, and all this for only around $30, yes please. It's a great passive DI for any home studio or live application.

• Well made and built pretty solidly
• Good construction well built, easy to install, good job
• More static buzz and no more bass amp

Best For Stereo sources: Mackie mono DI Box

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Mackie offers a variety of box for personal choice and yet maintaining quality in all the variants. An essential tool for every musician and engineer, the mdb-1p passive di has everything you need to adapt unbalanced, high-impedance audio to a balanced, low-impedance output with minimal noise. It is great for stereo sources like keyboards and synthesizers, the mdb-2p is an essential tool for electronic musicians, live sound venues, and recording studios. It features switches for polarity, low cut, and ground lift. It feels like a solid little box that is well made.

This is an “active” DI box, meaning that it needs a battery or phantom power from the mixer. It allows the connection of stereo sources which are then summed to mono at the output. The signal passing through from your instrument is all the power needed. It is great with no buzz or hum.

• Provide a clean, high resolution signal
• Very solidly built, quiet, with many useful features
• More buzzing sound from the computer through the mixer console

Best For price: Samson signal level

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The samson signal level should be able to handle its purpose and duties with ease. The Samson MDA1 active direct box is a rugged direct box that can be powered by a 9v battery or phantom power. It runs very clean and has a durable housing made of metal and is great for live sound and recording studio applications such as guitars and basses and operates on either batteries or phantom power. The output power on the DI is adjustable, so you should be able to get the signal level you need.

This is a direct box that takes instrument input and converts it to a balanced XLR. It can be used in country music concert hall. The quality of the sound does not diminish.

• Rock solid, transparent and ultra boost
• Does not add any noise in the signal
• Runs right into the stage mixer no issues

Best With headphone out: Whirlwind mono DI Box

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The whirlwind mono di box is suitable and reliable and fits well with your daily usage. The Whirlwind poddi is a passive direct box that's purpose built for patching ipods, cd players, laptops, and any other consumer music device into your mixing console. It comes with stereo input and mono output. This will reduce noise coming from a 3.5m jack and going into a XLR connector. There's a pair of attenuators for the left and right input channels, so you can adjust the mix right on the poddi.

A single summed xlr output with a switchable ground lift gives you the clear, noise-free sound you need. The volume makes balancing the input for a sound check very simple. These are amazing stable and last for years.

• A must for djing or sound reinforcement
• Connects 1/8 inch and rca components directly
• One of the new comers and featured product

Best With EQ: Fishman mono DI Box

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Fishman line of box come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. If you’re serious about useable tone, this is the holy grail. It is dedicated to helping musicians of all styles achieve the truest sound possible wherever and whenever they plug in. It features automatic ground-lifting and selectable pre/post eq settings. It provides superior tone control for any acoustic instrument. The switches and dials are so much better than infinite scrolling.

The midrange eq control on this unit does a fairly good job at dialing back a piezo pickup quack. It's a great preamp because it plays faithfully the acoustic sound by guitar. The boost switch comes in handy when you need to be heard without changing your eq and volume settings.

• Compression is subtle but effective, no pops or over attack sensitivity
• Harmonics and fretnoises will be translated as a pitch
• Good brand reputation

Best With Phantom Power: Radial Engineering mono DI Box

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The radial engineering mono di box's high-end materials makes sure that it ages well with use. It is important with the modern generation of pre-amplified (powered) acoustic guitars, active basses, and ect as these signals can be quite dynamic electrically. Passive DIs do not require any addition power source like batteries or AC input. This unit is a powered unit that requires 48V Phantom power to be on the XLR line to supply the unit with power. It features a rail voltage of around 9v which is much higher than comparable active dis. It's made of a solid steel case to protect it from damage on stage while at the same time create an "EM cage" to shield the internal electronics from outside interference.

These DO require additional power such as batteries or "Phantom Power" on the higher end units.

• Easy to use and highly recommended
• Very clean signal, no clipping, no distortion
• Great di for fender american jazz bass with stock pickups

Best For drum: Klark Teknik mono DI Box

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If you often find yourself confused about convenient and suitable box, klark teknik mono di box is your end point. Building on this legacy, the XL8 and PRO Series of Live Mixing Systems continue this great heritage of audio quality. It offers superior sound quality plus it is built to handle the rigours of life on the road via a thick and rugged aluminium extrusion that protects the electronics. It is proud to incorporate midas designed transformers for the ultimate in high-quality audio reproduction in both live and studio environments.

Featuring high-precision Left and Right Level controls, the DI 10P easily accommodates a wide range of input signals. It provides maximum versatility thanks to its incredible frequency response of 10 hz to 91 khz ( 1 db), a midas custom-design transformer for the ultimate signal integrity, stereo mono summing, and much more. The enclosure’s roadworthiness is further enhanced through the implementation of sturdy rubber corner bumpers.

• Di 10ps fully transformer-isolated design further ensures pristine performance
• Custom-built midas transformer for highest signal integrity
• Fully adjustable level control for both channels

Best For microphone: Samson mono DI Box

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Samson offers a variety of box for personal choice and yet maintaining quality in all the variants. A direct box is a must have for bass players, acoustic guitarists, and DJs. The Samsons Md1 mono passive direct box combines premium sound circuitry with durable, roadworthy construction, providing high. It maintains sound quality plus it is perfect for multiple uses, for example. It provides a very nice clean signal which works well with the amp sims.

This is a full featured stereo direct box ideal for running keyboards or electric drums into the house mixer. The New metal body makes it way more rugged compared to previous models and is a must have for any club or caf. It can be a lifesaver by creating a clear, and clean signal free of rf interference. If you're looking for a super tough super durable imp 2, you will be very happy with this.

• An absolutely gorgeous clean signal comes out
• Very clean sound and bone head simple to use
• Your natural tones will sound gorgeous
• Very well made & great sound