As light or lighter than a normal double horn,

the Bb side fully comparable to that of a double horn,

and the switch to high Eb without a change in sound, (when you change from Bb 0 to high Eb 2/3, the Instrument is only shortened a half step).

A surprisingly good combined low F-horn.

Because of the correct placement of the recommended 4 water keys,

 they cause no acoustical disadvantage.

2.300 g