Optimo

A high-end two-way transmission line floor standing loudspeaker. The cabinet design resulted from extensive measurements and listening tests with various internal partitions and cross-sections of the line desgined and built by Tony Gee from Humblehomemadehifi.com

The tweeter

The Scanspeak R2904-7000 is a 1" ring radiator, featuring, SD-2 neodymium motor, non-resonant aluminium chamber, multiple chamber low compression design, machined aluminium faceplate and phase plug. It is a 4-ohm driver with a high sensitivity and an upper frequency limit above 40 kHz.

The Mid-Woofer

The Scanspeak 18W4531G00 features a non-resonant cone and dust cap structure, dynamic linear suspension, SD-1 patented magnet system, and “Grasshopper" chassis for maximized airflow, and anti-resonance mounting system. Also being a 4-ohm driver it should match the tweeter well.

Kit Comes complete with:

2x Scanspeak R2904-7000 (For black version, please see options tab below)
2x Scanspeak 18W4531G00 Midwoofers.
2x Crossover components consisting of all components listed below(Default version is the standard version, utilizing the audyncap KPSN Capacitors. See options tab Below to request mundorf version m-cap of standard version)
L1 = 0,33 mH air-core inductor 2,0 mm wire, R = 0,09 ohms
L2 = 1,00 mH air-core inductor 2,0 mm wire, R = 0,17 ohms
C1a = 10uF MKP polypropylene foil capacitor – with 0,01uF MKP1837 bypass cap
C1b = 5,6uF Intertechnik Audyn Cap KPSN or Mundorf M-Cap Zn tin foil capacitor – 2,2uF + 3,3uF is close enough(Please see options tab to request this version)
C2a = 10uF MKP polypropylene foil capacitor
C2b = 2,7uF Intertechnik Audyn Cap KPSN or Mundorf M-Cap Zn tin foil capacitor(Please see options tab to request this version)<
R1 = 2,2 ohms, 10 watts metal film resistor
R2 = 3,9 ohms, 10 watts metal film resistor
R3 = 10 ohms, 10 watts metal film resistor

Crossover components (high-end version. Please see options tab below for Audyncap Plus version or Mundorf Supreme Version.):

L1 = 0,33 mH Intertechnik CFI foil inductor, R = 0,13 Ohms
L2 = 1,00 mH Intertechnik Tritec inductor 3,5 mm wire, R = 0,14 Ohms
C1a = 10uF Intertechnik Audyn Cap Plus or Mundorf M-Cap Supreme polypropylene foil capacitor(Please see options tab to request this version)< – with 0,01uF MKP1837 bypass cap
C1b = 5,6uF Intertechnik Audyn Cap KPSN or Mundorf M-Cap Zn tin foil capacitor – 2,2uF + 3,3uF is close enough.
C2a = 10uF Intertechnik Audyn Cap Plus or Mundorf M-Cap Supreme polypropylene foil capacitor – with 0,01uF MKP1837 bypass cap
C2b = 2,7uF Intertechnik Audyn Cap KPSN or Mundorf M-Cap Zn tin foil capacitor
R1 = 2,2 ohms, 10 watts metal film resistor
R2 = 3,9 ohms, 10 watts metal film resistor
R3 = 10 ohms, 10 watts metal film resistor

Optional Accessories