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🎶 Elevate your sound game—ditch the hum, keep the vibe!
The Pyle Passive DI Audio Box is a compact, steel-built direct injection unit designed to eliminate hum and buzz by converting unbalanced instrument signals into balanced XLR outputs. Featuring a 6.35mm input and built-in input attenuator, it seamlessly integrates with home studios, DACs, and professional audio gear, delivering clean, reliable sound for musicians and producers at an unbeatable value.







| ASIN | B0027V760M |
| Best Sellers Rank | 401 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 1 in DI Units |
| Colour | Black |
| Compatible Devices | Adapter, Keyboard |
| Compatible Phone Models | Audio |
| Connector | XLR |
| Country Produced In | USA |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,132) |
| Date First Available | 1 Jan. 2024 |
| Item Weight | 332 g |
| Item model number | PDC21 |
| Material Type | steel |
| Power Source | Battery Powered |
| Product Dimensions | 4.57 x 8.38 x 12.7 cm; 332 g |
| Size | One Size |
| Speaker Amplification Type | passive |
S**S
Great value and excellent facilities.
Excellent versatile DI box, really good value. The transformers are not the usual mini type at this price.
H**G
Good quality.
Easy to use. Both sound and built quality are good. No noise.
A**.
Just the job
Works well and feels robust in use
F**R
Solid performer.
Simple to use passive DI box. I use two of these units in my home studio and they work great. Yes, they do slightly colour the tone but that is far outweighed by the reduction of noise and interference a balanced output gives you. Works great for keyboards, drum machines, guitar processors, etc.
C**Y
Good
Excellent value for money
M**7
Pretty impressive
Haven’t tried them on stage with a couple of keyboards yet so can’t comment on signal quality yet but the build quality seems really good. Arrived overnight by Prime. Pretty impressive build quality even when compared to other more far expensive ones that I’ve bought in the past. Time will tell I guess but at £13 quid each you can’t go wrong.
T**K
It works well
Does exactly what it supposed to. It’s built well enough for most applications and the sound coming out is just as good (or bad) as what you put in. It’s a steal at this price. If you need to impress your friends with brand names then spend a lot more money. Otherwise this does the job perfectly well.
J**N
Not great
Bought it to convert a stereo unbalanced line level signal to a stereo balanced line level signal and found that it attenuates the signal too much even with attenuation set to 0dB. Gave it three stars as it was cheap and it does work, just not very well.
S**A
Well constructed and works well
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.
G**S
Pyle PDC21 DI box
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.
F**S
prix attractif
pas encore tester , mais le prix est très attractif
M**K
ok
Ok
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.
Trustpilot
2 months ago
3 weeks ago