Superlux D112C Omnidirectional Dynamic Microphone - Hi-Z Blues Mic

In this review the Superlux D112C is presented as a purpose-built mic for harmonica players and blues vocalists who want a raw, plug-and-play tone. The single biggest reason to consider it is its Hi-Z, amp-ready design that removes the need for adapters or preamps, letting players plug directly into guitar amps for immediate stage-ready sound. The D112C's omnidirectional capsule and warm 100-6,000Hz response aim to capture harmonica nuance, while the long 6m cable and 6.3mm TS plug make it convenient for live use.

Key Features

• Hi-Z amp direct input: Allows harmonica players to plug straight into guitar amps or high-impedance gear with no adapter or preamp needed, simplifying setup for live gigs.
• Omnidirectional capture: The mic picks up harmonica nuances and ambient tone across its 100-6,000Hz response to preserve the character of blues playing.
• Built-in volume control: The integrated knob with a center detent makes on-the-fly level adjustments possible without reaching for your amp.
• Stage-ready cable: A permanent 6m dual-core shielded cable with a 6.3mm TS plug reduces cable fuss and keeps the mic ready for live performance.
• Ergonomic, ambidextrous grip: Smooth curves fit comfortably in either hand, making long cupping sessions and energetic playing less fatiguing.
• High SPL handling: Rated to 140dB SPL, the D112C tolerates loud stages and aggressive playing without obvious distortion.

Who It's For

The D112C is aimed at harmonica players and blues vocalists who want a vintage bullet mic feel and the convenience of plugging straight into a guitar amp. It is especially useful for players who perform live frequently and need a robust, ready-to-go mic with a long, fixed cable and tactile volume control.

Players who need studio-oriented pro features such as XLR outputs, balanced connections, or built-in preamps should look elsewhere, since the D112C is a Hi-Z dynamic with a 6.3mm TS output and a simple, amp-focused design rather than a studio condenser replacement.

Pros & Cons

Pros

• Clear, warm tones well suited to blues and harmonica playing when plugged into guitar amps.
• Very convenient amp-ready design with a long, shielded 6m cable and 6.3mm TS plug.
• Comfortable ambidextrous grip that makes cupping and stage work easy for extended periods.
• Built-in volume knob provides tactile level control and a center detent for repeatable settings.

Cons

• Some users report mixed reliability of the volume control, so the knob can be a point of failure on a few units.
• Fixed cable and TS output limit integration with balanced PA rigs or studio setups without additional DI or adapters.

Specifications

Type	Omnidirectional dynamic microphone
Frequency response	100 - 6,000Hz
Maximum SPL	140dB SPL
Cable	Permanent 6m dual-core shielded cable
Output connector	6.3mm TS plug
Controls	Built-in volume knob with center detent
Design	Titanium blue vintage bullet style, ambidextrous grip

Our Verdict

The Superlux D112C is a focused, affordable tool for harmonica players and blues vocalists who want an amp-ready, vintage bullet mic sound without extra gear. Its warm response, long fixed cable, and comfortable grip make it a great value for live players; just be aware that the fixed TS output and occasional volume-knob issues mean it is best suited to stage amp use rather than balanced studio work.

Frequently Asked Questions

Can I plug the D112C directly into a guitar amp?
Yes. The mic is Hi-Z and ships with a 6.3mm TS plug so it can be connected straight to guitar amps and high-impedance inputs.

Does the mic handle loud volumes on stage?
Yes. With a 140dB SPL rating the D112C tolerates loud playing and aggressive harmonica work without obvious distortion.

Is the volume knob reliable?
Most users find the built-in volume control handy, but there are reports of mixed reliability on some units, so test the control before heavy touring.