I TOO OWNED A FORTE 4A AND A THRESHOLD T400.BOTH ARE EXCELLENT AMPS WITH THE T400 HAVING MUCH MORE POWER.MY FAVORITE THRESHOLD AMPS WERE MY SA6E MONOBLOCKS WHICH I JUST SOLD TO A LOCAL FRIEND.THEY SOUNDED SIMILIAR TO THE T400 BUT ARE MUCH SMOOTHER.THEY DEFINE THE PHRASE OF NO LISTENING FATIQUE.I REPLACED THEM WITH CARY 805C MONOS.THE E SERIES WERE THE BEST OF THE THRESHOLDS.
