Teach music composition - Sibelius Ultimate is ideal for teaching music notation

Made of black powder-coated cast aluminum

RS124 was an Abbey Road modification of the Altec 436B compressor: only 25 units were ever made

Specially designed active stereo x-over provides a sublime frequency response

SoundID Reference for Multichannel sampler Teach music composition - SibeliusSoundID Reference for Multichannel delivers accurate and reliable reference sound for speaker setups from simple stereo up to 9. 1. 6 atmos systems. It also works for headphones, so you can also calibrate any of the 500+ headphone models from our growing headphone profile database to achieve consistent reference sound between your headphones and speakers. Features Reliable, consistent, easy to use calibration software for all of your audio system: 1.