User manual ELAC FS 249

[. . . ] FS 249: When striving for perfection, you must break new ground Experience music, be right in the middle of it, soak up the atmosphere, "see", feel and sense each instrument, each voice ­ this is how speakers should reproduce music. In order to reproduce music authentically, vividly and naturally, the ELAC R&D engineers have paid special attention to three-dimensional sound radiation patterns. [. . . ] In addition, by using a press formed structure, the membrane is more rigid and has lower distortion which not only prevents partial vibrations in the crossover zone but also reduces harmonic distortion. Due to the high rigidity of the aluminium membrane, it is now possible to attach the solenoid not only to the cone neck but also directly to the aluminium membrane. This significantly extends the cone's bandwidth right across the frequency range giving a noticeably more even & continuous frequency response. · The FS 249 also stands out with a newly developed mid-range speaker that is equipped with a dual-wave (full-roll) absorbent fabric suuround. The specially designed surround absorbs & dampens lateral cone oscillations ensuring exceptionally pure output in the very sensitive mid-range area. This endows vocals in particular with a smoothness & articulation which is truly riveting. · In the treble, ELAC uses its class leading JET tweeter, recognised worldwide as one of the very finest available. Its internal design has been reworked, which has resulted in an even more linear frequency response and improved harmonic distortion. A key new feature is an acoustic tuning element made from porous foam called the "JET DC" (JET Dispersion Control) This allows the treble to be adapted to particular room settings ­ especially for hall-like spaces with a lot of glass, wood floors, etc. The JET DC incorporates both a directional characteristic as well as a frequency response correction, so that instruments and voices can be pinpointed precisely - even in difficult room settings with many reverberant surfaces. This arrangement allows for deeper bass tuning and can also be used as an acoustic low-pass filter. The rear projection bass reflex tube comes closed off with a bass control plug . [. . . ] For acoustic reasons, since one of the bass reflex openings radiates sound downwards, the base plate must be securely fitted before use. · · · · · Finishes: Mocha, Cherry Veneer, Black High Gloss Specifications ELAC FS 249 Dimensions Height (with/without base plate/spikes) Width (with/without base plate) Depth (with/without frame/base plate) Weight Type Woofer Midrange Tweeter Rec. Amplifier Power at nominal impedance 1060/1118/1147 200/260 308/323/368 mm 31 kg 3-way, bass reflex 2 x 180 mm AS-XR cone 140 mm AS-XR cone JET III (?) 30 ­ 400 W / Channel Crossover Frequency Nominal Power handling Peak Power Handling Frequency Range Sensitivity Nominal impedance Minimum impedance 500/3200 Hz 200 W 250 W 28 - 50000 Hz 89 dB/2. 8V/m 4 ohms 3. 0 ohms at 120 Hz [. . . ]