DBXDI1 vs DBXDI4 — Compare

dbx Di1 Active Direct Box vs dbx DI4 Active 4 Channel Direct Box with Line Mixer

The Di1 is a single-channel direct box designed for transparent tone shaping on one instrument, while the Di4 is a four-channel active DI with integrated line mixer and stage monitoring capabilities. Choose the Di1 if you're running one instrument into a console; choose the Di4 if you need to convert and mix multiple unbalanced sources or want independent stage and FOH outputs.

No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.

dbx Di1 Active Direct Box

$195.00
View dbx Di1 Active Direct Box

dbx DI4 Active 4 Channel Direct Box with Line Mixer

$180.00
View dbx DI4 Active 4 Channel Direct Box with Line Mixer

Specs side by side

dbx Di1 Active Direct Boxdbx DI4 Active 4 Channel Direct Box with Line Mixer
Price$195.00$180.00
BrandDBXDBX
YearUnknownUnknown
ConditionNewNew

Why choose dbx Di1 Active Direct Box

  • ✓ Single-channel focus with intuitive tone-shaping controls
  • ✓ Compact footprint ideal for minimal setups
  • ✓ Dual output options for flexible routing
  • ✓ Studio-grade signal conditioning in a simple package

Why choose dbx DI4 Active 4 Channel Direct Box with Line Mixer

  • ✓ Four independent channels handle multiple instruments or sources simultaneously
  • ✓ Built-in stereo line mixer with independent pan and volume per channel
  • ✓ Headphone output for personal stage monitoring
  • ✓ 20dB pad and ground-lift switches on each channel for problem-solving
Bottom line: Buy the Di1 if you're a solo artist, bassist, or keyboardist working one source at a time in any setting. Buy the Di4 if you're gigging with multiple keyboards, samplers, or instruments, or need to send different mixes to front-of-house and stage monitors simultaneously.

Frequently asked questions

Can I use the Di4 like the Di1 for just one instrument?

Yes, the Di4 works as a standard single-channel DI box when you use just one of its four inputs. However, you're paying for three extra channels you won't use, making the Di1 more cost-effective for single-source applications.

What's the main advantage of the Di4's line mixer function?

It lets you connect multiple keyboards, samplers, or modules to a single unit, create an independent monitor mix on stage via its RCA master outputs, and route a separate balanced XLR feed to the front-of-house engineer—all without needing a separate mixer.

Do both units work for live performance and studio use?

Yes, both are rated for live performance, studio sessions, and home recording. The Di1 excels at transparent tone shaping on a single source, while the Di4's strength is managing multiple sources and creating independent monitoring mixes.

Which is better for a band with multiple keyboard players?

The Di4 is ideal for a band because each keyboard player can plug into a separate channel, adjust their own level, and the engineer can mix or route those signals independently to monitors and FOH without needing an external mixer.

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