We are proud to introduce our new D1x. 70” tall loudspeakers monsters Hand-built with custom crossovers by Danny Richie! They are an new updated Mastering version of popular. One of the most detailed and accurate speakers for mastering and audiophiles over 50 mastering studios around the world trusted as a reference speakers for mastering studio! They have more bass and a little more detail and space than the previous version. D1x SE is extreme finesse and delicacy and the absolute nth degree of articulation and uncolored ultra detailed sound delivery. The D1 is a multi driver speaker configured in a Appolito array. The driver compliment employs four bass drivers, two at the top and two at the bottom. In between the bass drivers there are two midrange drivers and the singular 1″ dome tweeter. Tyler Acoustic D10 represents a outstanding bargain in a speaker considering size, range, articulation and sound staging abilities. Frequency response: 24-20k Impedance: 8 ohms Sensitivity: 90db Size: 13 x 20 x 68 (Inch) Weight: 195 lbs each.