Universal Audio SD-7

From UA Sphere technology to SD dynamic microphones: accessible "studio" DNA

Universal Audio made its name in studios for its sonic rigor and "full chain" approach: capture, processing, and integration into the recording environment. With the arrival of UA Sphere modeling systems, the brand set an important milestone by offering a modern way to choose a microphone character while maintaining a reliable and consistent capture. The SD-7 continues this tradition within the brand's dynamic microphone family: a robust and immediately usable capture, enhanced by Hemisphere modeling to reproduce classic sonic signatures without multiplying microphones at your cabinet's foot.

A mic made for "powerful" sources: toms, cabs, percussion, brass

The SD-7 targets situations where you want a microphone that won't flinch: toms played with force, guitar or bass cabinets with lots of attack, percussion and brass that require both firmness and definition. Its hypercardioid pattern helps focus the capture on the source, making mixing easier by reducing bleed from nearby elements (cymbals, stage monitors, other amps). Another practical advantage: you can pull the mic back slightly to let in more air and depth while maintaining effective isolation-handy when you're seeking a more "open" sound without losing control.
In the studio, this translates to cleaner tracks that are easier to process (EQ, compression, gating). On stage, it's a natural ally for maintaining clarity and gaining stability, especially when levels rise and the environment becomes complex.

Hemisphere: choose a microphone character even after recording

The SD-7 truly shines with Hemisphere, a microphone modeling plug-in provided free and based on the same technology as UA Sphere modeling microphones. The idea is simple: you record with a solid capture, then select the microphone "profile" that best serves your source and mix. You get models of renowned dynamic and ribbon microphones (notably from Sennheiser and Beyerdynamic signatures), with an approach designed for modern production.

In real time with Apollo or natively in your DAW

Depending on your setup, you can enjoy Hemisphere modeling in real time with an Apollo interface, or natively processed in your digital audio workstation. Practically, this lets you either "play" with the sound during tracking (useful for guiding performance and artistic direction) or keep maximum flexibility at mix time.

Control filter, proximity effect, and axis... without re-recording

Hemisphere goes beyond simple model selection: you can refine the sound with a filter, adjust the impact of the proximity effect, and work on the axis (as if repositioning the microphone), even after recording. This is especially effective on toms (balancing body and attack), guitar cabinets (managing bite without harshness), or brass (retaining energy while taming overly bright areas).

A design built for the field

With its metal construction, vintage style, and selected capsules, the SD-7 is designed to handle back-to-back sessions and gigs without compromising reliability. The integrated adjustable tilt mount speeds up setup and facilitates precise placement-a key point when every centimeter changes the balance between impact, sustain, and ambiance.

Technical specifications

Category	instrument microphone	Capsule	dynamic
Directivity	hypercardioid	Color	White

Microphone	Dynamic	Output Impedance	600 Ohms
Polar Pattern	Hypercardioid	Connector	3-pin male XLR
Frequency Range	30 Hz - 17 kHz	Dimensions	113 x 97 x 50 mm
Sensitivity	-54 dB	Weight	727 g