Modérateur : Les Modérateurs
The Epic CF3 and CF4 are probably the best Klipsch ever designed. Only the large Heritage better them in efficiency. The best was lost. Later the company came out with much taller HT format two ways but the horns had been shrunk and the crossover points increased by three. Gone too was the D'Apolito driver configuration with a return to the KG format or WWT towers.
EPIC Series Production versions – Rev.1, Rev.2, Rev.3
Rev.1 – Start of Production in Spring of 1994
These models had 5" long port tubes
Networks used OFC (monster cable looking) clear jacket wiring.
Horns in these models were gray in color.
Rev.2 – Fall of 1994
These models had shorter 2.5" long port tubes (to raise the box tuning)
Networks had a component / value change to correct for the new ports. (The network wire was still the OFC used in Rev.1.)
Rev.3 – Summer of 1995 to end of production in 1996
These models had new lighter cone woofers (new vendor) (these cones aren’t nearly as stiff as the originals and can be deformed much easier by pressing on them)
Networks were changed to compensate for the new woofers
Change in network wiring to colored 16ga. like what is used in Legend KLF networks
New horn material that was 20% glass and was painted black.
X20 chip uses two main ESS Technology ES9018 Sabre Reference 32bit chip, with XMOS 32bit / 500MIPS performance digital signal processing unit.
Product Features:
• DAC-X20 core chip uses two ES9018, left and right channels for each one.
• the first use of adaptive technology and asynchronous master clock master clock technology, two clock mode can be freely selected.
• Full interface supports DSD decoding. USB support DSD hardware solution, Coaxial Optical AES / EBU support DOP decoding, which can be accessed several broadcast SACD listening to music. Full interface supports 24Bit 192khz (USB 32B 384K).
• using CPLD programmable logic device. MESNAC ES9018.
• 3-speed gain, volume can be adjusted, a total of 100 stalls adjustable volume attenuation from 0 to -99DB.
• six kinds of input methods: IIS fiber `BNC coaxial port` AES / EBU`USB, through the key switch.
• Adopt TFT LCD display, adjustable contrast
• power supply with two O-type transformers, digital and analog independent power supply, and the use of discrete components regulation.
• COAX input format support: PCM 16-24bit / 44.1-192kHz; DSD DOP64
• BNC input format support: PCM 16-24bit / 44.1-192kHz; DSD DOP64
• AES input format support: PCM 16-24bit / 44.1-192kHz; DSD DOP64
• OPT input format support: PCM 16-24bit / 44.1-192kHz; DSD DOP64
• USB input format support: PCM 16-32bit / 44.1-384kHz; DSD DOP64 / DOP128 DSD512 (native)
• IIS input formats supported: PCM 16-32bit / 44.1-384kHz; DSD DOP64 / DOP128 DSD64-DSD512
it looks like a $3000 product and according to the guy in the below link beats the Schiit Yggdrasil (Yggy) and the Auralic Vega.....these two heavy hitter DACs ($2300 and $3500) are seriously respected DACs in their price range.
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