Don't buy anything without hearing the Audio Note AN/E Spe and the Tonian models.
DeVore are very nice speakers but not really HE, and they don't sound like it. Yes a 300B will drive them but they do not give the dynamics and nuance of an HE speaker.
PHY, Supravox, and Ferting WB drivers on a simple OB can be incredible.
Beauhorns are very nice but not available new - very rare.
Fostex back horns (Cardersound, Cain) are certainly worth considering. Many prefer them to the far more expensive drivers. They are not as detailed but frequently win in the fatigue department.
DeVore are very nice speakers but not really HE, and they don't sound like it. Yes a 300B will drive them but they do not give the dynamics and nuance of an HE speaker.
PHY, Supravox, and Ferting WB drivers on a simple OB can be incredible.
Beauhorns are very nice but not available new - very rare.
Fostex back horns (Cardersound, Cain) are certainly worth considering. Many prefer them to the far more expensive drivers. They are not as detailed but frequently win in the fatigue department.