IMP 2 1-Channel Passive Instrument Direct Box - Reliable Stage DI

In this review the IMP 2 1-Channel Passive Instrument Direct Box is evaluated as a low-cost, road-ready DI that delivers straightforward performance for live and studio use. The bottom line: this direct box is for musicians, engineers, and techs who need a durable, no-nonsense way to convert instrument or line level unbalanced signals to a low-impedance mic-level balanced output, and its main selling point is consistent sound quality and build reliability at an economical price.

Key Features

• Passive transformer conversion: Converts a line- or instrument-level unbalanced signal to a low-impedance, mic-level balanced output for clean connection to mixers and interfaces without active power.
• TRHL transformer construction: Uses Whirlwind's riveted TRHL transformer for long-term mechanical and electrical stability on the road or in the studio.
• Ground Lift switch: A dedicated ground lift helps isolate hum and buzz when connecting to different stage or house systems.
• Parallel 1/4in I/O: Parallel wired in/out jacks allow easy insertion into an amp rig while sending a balanced feed to the board.
• Road-tough enclosure: Metal chassis and compact footprint make the unit durable and portable for frequent setup and teardown.

Who It's For

The IMP 2 is best suited to gigging musicians, FOH engineers, and home studio owners who want a simple, reliable DI without the complexity or maintenance of active electronics. It handles guitars, basses, acoustic instruments and even keyboards with dependable clarity and low noise, which makes it a good all-purpose tool for live rigs and tracking sessions.

Users who need features like onboard EQ, pad switches, or active buffering for very long cable runs should consider a different model; likewise, those who require direct box models with multiple channels or rackmount options will need a larger solution.

Pros & Cons

Pros

• Well-built transformer and metal chassis deliver excellent durability for live use.
• Passive design and TRHL transformer provide clear, quiet sound quality without batteries or power.
• Parallel in/out and ground lift make it flexible for stage routing and noise control.

Cons

• Passive topology means no active buffering or tone shaping, so users wanting EQ or gain control will need external gear.

Specifications

Our Verdict

The IMP 2 is a practical, value-minded DI that delivers the essentials: sturdy construction, reliable transformer conversion, and straightforward routing for live and studio work. It is an excellent buy for anyone who needs a durable passive DI with solid sound and minimal fuss, though players requiring active features or multiple channels should look elsewhere.

Frequently Asked Questions

Does the IMP 2 need power?
No; the IMP 2 is a passive direct box and requires no batteries or phantom power to operate.

Can I use it with keyboards and digital pianos?
Yes; customers report good results using the IMP 2 with digital pianos and other line-level sources when a balanced mic-level feed is needed.

Will it help with hum from stage grounding?
Yes; the included ground lift switch is effective at isolating common hum and buzz caused by ground loops.