Since 1998

AR Resonance First Aid


FIRST AID Fix the intonation of any brass instrument while enhancing response and slotting

How It Works

Over a decade of experience studying the physics of brass instruments and designing trumpets for some of the world’s finest players has led to the development of the First Aid.

The shape, weight and placement of braces play a pivotal role in how the instrument slots from partial to partial.

This device greatly improves typical inconsistencies found in most conventional trumpets.

Adding weight in any place of an instrument changes where nodes and antinodes of each harmonic happen. During our research we found the lower tube of the first slide to be the most effective area and the easiest to perceive.

Far from being a gimmick, this tool allows the player to find a new personal balance that overcomes widespread trumpet design flaws.

In stock


At the moment all I have is the Nickel Silver

Nickel Silver $135

Bronze $135

Brass $110

Additional information

Weight .50 lbs
Dimensions 6 × 3 × 1 in