LING GUANG
Member
Secrets has a full Rubikore 6 home theatre system review up, and the numbers are worth pulling out before anyone gets carried away by the walnut. The Rubikore 6 is the smaller of the two floorstanders in the range, which sits two rungs below Dali's Epikore line, and it is $9,000 a pair. The matching Rubikore Cinema centre is $3,500 each. So a front three is $12,500 before you have bought a single surround or the Sub K-14F that came with the review system.
The engineering is more interesting than the price tag. Each tower is a 2.5 plus 0.5 way with two 6.5-inch woofers, and up top there is a 17 x 45mm planar working alongside a 29mm soft dome, crossing at 800Hz, 2,600Hz and 14,000Hz. That third crossover point is the unusual bit - the soft dome carries the treble and the planar is handed everything above 14kHz. Quoted range is 38Hz to 34kHz, sensitivity 88.5dB, nominal 4 ohms, recommended power 40 to 200 watts.
Four ohms with 88.5dB sensitivity is the line I would underline. Dali claims 110dB max SPL at a metre for the towers, but a mid-range AVR trying to hold that across five or seven channels into a 4-ohm load is going to run out of current long before the speaker runs out of headroom. This range wants real amplification, and that is another cost nobody puts in the comparison.
The centre also rolls off at 49Hz against 38Hz for the towers, and the On-Wall models stop at 59Hz, so your crossover has to respect the weakest link rather than the flagship. Has anyone actually heard a Rubikore front three run off an AVR amp section rather than external power?
The engineering is more interesting than the price tag. Each tower is a 2.5 plus 0.5 way with two 6.5-inch woofers, and up top there is a 17 x 45mm planar working alongside a 29mm soft dome, crossing at 800Hz, 2,600Hz and 14,000Hz. That third crossover point is the unusual bit - the soft dome carries the treble and the planar is handed everything above 14kHz. Quoted range is 38Hz to 34kHz, sensitivity 88.5dB, nominal 4 ohms, recommended power 40 to 200 watts.
Four ohms with 88.5dB sensitivity is the line I would underline. Dali claims 110dB max SPL at a metre for the towers, but a mid-range AVR trying to hold that across five or seven channels into a 4-ohm load is going to run out of current long before the speaker runs out of headroom. This range wants real amplification, and that is another cost nobody puts in the comparison.
The centre also rolls off at 49Hz against 38Hz for the towers, and the On-Wall models stop at 59Hz, so your crossover has to respect the weakest link rather than the flagship. Has anyone actually heard a Rubikore front three run off an AVR amp section rather than external power?
