







🎶 Elevate your sound game—ditch the hum, keep the vibe!
The Pyle Premium Direct Injection Audio Box (PDC21) is a compact, passive DI unit designed to convert unbalanced instrument signals into balanced outputs with minimal noise. Featuring a 50KΩ input impedance, switchable ground lift, and selectable input attenuation (-40dB to 0dB), it ensures clean, hum-free audio for guitars, basses, keyboards, and more. Its rugged steel chassis and versatile connectivity make it an essential tool for professional live sound and recording setups.







| ASIN | B0027V760M |
| Best Sellers Rank | #198 in Musical Instruments ( See Top 100 in Musical Instruments ) #1 in Recording Signal Direct Boxes |
| Color Name | Black |
| Compatible Devices | Microphone, Musical Instrument |
| Compatible Phone Models | audio |
| Connector Type | XLR |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,369) |
| Date First Available | April 27, 2009 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 11.7 ounces |
| Item model number | PDC21 |
| Material Type | steel |
| Product Dimensions | 1.8 x 3.3 x 5 inches |
| Size | 1 Count (Pack of 1) |
| Speaker Amplification Type | passive |
S**.
Great box for a great price!
Great direct box for the best price I've seen. Works well... the sound guy at church said it not only gave a stronger signal than my setup had been providing, but it also fixed an annoying hum that he couldn't isolate before (using the church's direct boxes). The only recommendation: with the ground lift button (it's a button, not a switch), maybe either add the word "lift" or switch your on/off indications. Since it's a lift, technically (as printed in the instructions), when it's engaged ("On"), the GROUND is disengaged or off (lifted). Right now, when you look at it, it reads that the GROUND is ON or OFF. For those who work with tech all the time, they probably understand the difference, but others might not. Regardless, once you figure out the right position, it works great.
T**H
Amazing value
It works. Just get it. Use it for my guitar and bass to my mixer. Sounds great abd is simple. Amazong value.
A**M
Good product if used right
I bought this to eliminate low cycle hum in a recently purchased guitar. Best way to use it it to input I instrument in 1/4 jack and output through DI XLR output. Got the best results this way. Ultimately I decided to return the guitar and thus box as a result though I do recommend for DI use.
I**Y
Good value passive DI.
My other DI box is the Behringer DI400P. That cost slightly more with a better build and finish. However the Pyle has a 3 way attenuation switch.
T**N
Decent Gear.
Worked as described.
L**N
Works great
For it being $15 or around that price I'd say it's way worth the money. I was looking and saw that a ground plug was around 60 bucks and wasn't going to buy that right away and saw this and bought it instead. It's pretty easy to use especially with the diagram on it. I wasn't sure if it was going to play through the amp or not but it does and I haven't tested it on a saw yet so I can't say anything about that. For the ideas it wants talked about. Doesn't need a battery, the quality is good.
0**7
Enhance Your Sound with the Pyle Premium Direct Injection Audio Box
The Pyle Premium Direct Injection (DI) Audio Box is a versatile and essential tool for musicians and audio engineers. Designed to provide clean and balanced audio signals, this passive DI unit is perfect for connecting guitars, basses, keyboards, and other instruments to PA systems or recording mixers. With its ability to eliminate buzz and hum, it ensures high-quality sound for live performances and recording sessions. Key Features: 1. 1/4” Device Connector: - The DI box features a 1/4 inch device connector, making it easy to connect various instruments and outboard signal processors. It includes a detachable AC power cord for convenience during live sound recording applications. 2. Clean Audio Transmission: - This DI box is designed to connect unbalanced signals from sources like submixers, effects processors, and keyboards to a main PA or recording mixer. It provides buzz and hum cancellation, ensuring a clean and pure audio signal. 3. Instrument Connectivity: - Connecting musical instruments to a PA system is simplified with this direct box. You can easily connect electric basses, guitars, keyboards, and other processors to the ground lift adapter for clean and noise-free audio transmission. 4. Versatile Use: - Beyond musical instruments, this DI unit can connect to the line output of a boom box or consumer stereo system, allowing you to sample old records. It is also useful for connecting unbalanced devices, making it a versatile tool for various audio applications. 5. Impedance Transformer: - The unit includes a 1/4'' impedance transformer connector to balanced and unbalanced XLR, facilitating seamless integration into different audio setups. Pros: - High-Quality Audio: Provides clean and balanced audio by eliminating buzz and hum, ensuring optimal sound quality. - Versatile Connectivity: Suitable for various instruments and audio devices, making it a versatile addition to any setup. - Easy to Use: Simple connections and a detachable AC power cord make it user-friendly for both live and studio settings. - Durable Build: Sturdy construction ensures durability, making it reliable for frequent use. - Portable: Compact size (2.36" x 4.09") makes it easy to transport and integrate into different audio setups. Cons: - Passive Unit: Being a passive DI box, it might not provide the same level of signal boost as active DI units. However, its performance is excellent for most standard applications. - Limited Features: While it offers great audio quality and connectivity, it may lack some advanced features found in higher-end DI boxes. Conclusion: The Pyle Premium Direct Injection Audio Box is a must-have for musicians and audio professionals seeking clean and balanced audio transmission. Its ability to connect various instruments and audio devices, combined with its buzz and hum elimination, makes it a valuable tool for live performances and recording sessions. The versatile and user-friendly design ensures it meets the needs of both beginners and experienced audio engineers. Recommendation: I highly recommend the Pyle Premium Direct Injection Audio Box to anyone in need of a reliable and versatile DI unit. Its high-quality audio performance, ease of use, and durable construction make it a great choice for a wide range of audio applications. Whether you are a musician, sound engineer, or audio enthusiast, this DI box will enhance your sound setup and provide clean, noise-free audio for all your performances and recordings.
A**R
Works Well
Does the job effectively with no drama
S**A
Very well made with attenuation transformer and clear functional diagram on the case, seems to work well though I have not tested it extensively yet.
K**N
Perfect bright sound for my acoustic guitar
J**S
La diferencia es de noche a día. Yo la utilizo para conectar mis guitarras y bajos a mi interface de audio (scarlet) y el resultado es muy bueno, corta todo ese ruido que había antes y obtienes una señal limpia. La caja en sí está muy bien construida, se siente de buenos materiales. La verdad es la mejor opción por el precio, no duden en comprarla.
G**S
Great little gadget, I wanted to hook up my digital metronome to this little lamp. I knew there was a difference of opinion between the two as in an imbalance in the impedance and all that kinda good stuff, but I really didn’t know what to do about it, so yes, I got a hold of AI and he told me that I needed a DI box, my first thought was what in the hell is a DI box? So anyway, long story short I got this little DI box cheap enough for sure and problem solved works like a hot dam.
A**R
Super Produkt, so muss es sein!
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