Michael Kraske, CEO / Director of Credo, and I sat down to talk about line arrays and his Cinema LTM Speakers.
The Cinema LTM are in Barn for a complete system review along with a stack, and them some, of EMM Labs electronics. I sat down with Michael Kraske of Credo to talk about a number of topics. This part of our conversation focuses on line array technology and Michael’s reasons for choosing this approach for his Cinema LTM speakers. Enjoy!
Apologies for the sound quality—I stepped on my lav mic so I had to use the crappy mic in my camera.
Three way floor-standing speakers Line Array Enclosures: Sealed, mid-woofer & tweeter separated (optimized for low-compression) Subwoofer: Sealed (optimized for low-compression) Vibration-decoupled to the ground Tweeter: 32 x 22 mm coated textile dome, neodymium magnet Midwoofer: 14 x 4″ fiber-glass cone (coated), neodymium magnet, low-loss suspension & drive Subwoofer: 4 x 12″ aluminum cone, double ferrite magnet, 60 mm stroke Crossover: Passive proprietary 3-way filters, coils: Mundorf CFC air-core, capacitors: Mundorf MCap Supreme EVO Crossovers are mounted vibration-decoupled Handmade by Credo Audio Switzerland Tuning: Closed (optimized for low-compression) Frequency response: 16 Hz – 20 kHz, +/- 2.5dB Bassroll-off: [email protected]/[email protected]/[email protected] Efficiency: 85.5 dB @ 2.83V @ 1kHz @ 1m Linear impedance: nominal 8 ohms, minimum 3.8 ohms at 10 kHz, max 9.1 ohms @ 200 Hz Recommended amplifier power: For 95 dB at 1 m distance: 18 W Recommended amplifier power: For 95 dB at 4 m distance: 100 – 300 W RMS Weight: 155 kg (342 lb.) p.p. without packing Size:(HxDxW): 187 cm x 70 cm x 27 cm(73.6 x 27.5 x 10.6″) incl. isolation feet
Company Website: Credo Don Keele’s Website The Application of Broadband Constant Beamwidth Transducer (CBT) Theory to Loudspeaker Arrays, D. B. (Don) Keele, Jr. Metallica’s Secret Weapon: The Meyer Sound TM Array (video)
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