QuantiForce Brass PRO SLIM

Quantify brass playing performance at high resolution in real time. The advanced tool to explore the future of music performance and learning.

This is the slim version of QuantiForce Brass Pro  with an integrated mounting bracket. It fits to even more instruments (especially some trombone models) where space behind the mouthpiece is limited.

More details

556 € excl. VAT


For an introduction please see QuantiForce Brass.

Lip Force at High Resolution

Measure the force that is applied to the mouthpiece with high resolution of approximately 0.1 N (~10 gram).

Comparable Loudness Measurements

Loudness measurements depend on the distance to the source. This sensor measures the loudness at a fixed position relative to the instrument in order to receive comparable values.

Toolless Installing

Easily mount the sensor onto instruments using the integrated clamps without the need of any tools.

Force & Loudness Display

See the current lip force and loudness in real-time on a clear display with circle and bar visual elements in the app.

Force vs. Loudness Display

See the relation of lip force and loudness in real-time on a 2D graph display in the app.

Time Series Display

See how lip force and loudness vary over time on time series graph displays in the app.

Camera Image Display

Optionally display the live camera image from the front or back camera of the device that runs the app.

Save to Video

Record the live display to a movie file which you can analyze later or share. Everything the app displays is recorded, including the live camera image if selected.

What’s in the box

  • QuantiForce Brass Pro Slim sensor unit with integrated mounting bracket
  • Mouthpiece adapter rings (3 pcs), clamp, and force plate
  • Micro-USB cable
  • Free access to the companion iOS app

Environment-friendly manufacturing

Where possible, plastic parts are manufactured in-house using biodegradable material (PLA) which is made from renewable resources. This is good for the environment but it also lets us respond quickly to different shapes of brass instruments that we have not seen yet. And it also gives each part a unique look. Please contact us in case the delivered adapters don't fit your instrument and we will find a solution.

Data sheet

Force Update Rate 25 Hz
Force Channels 1
Force Resolution ca 10 gr. (0.1 N)
Loudness Sensor Yes
Loudness Update Rate 10 Hz
Orientation Sensor Yes
Orientation Update Rate 25 Hz
Battery Life ca. 5 h
Charging micro-USB
Connectivity Bluetooth 4.0 LE (BLE)
Requirements iPhone, iPad, or iPod Touch with iOS 9 or newer
Dimensions 87.5 x 44.9 x 9.2 (15.9) mm
Weight 35 g