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RATOC Audio Lab TECHNICAL BRAIN RATOC Systems(PC parts) Old products(other pages)

Multi bit D/A Converter
  • 24bit/192kHz HD-Audio ready USB Multibit DAC. Accepts 24bit/192kHz, 176.4kHz, 96kHz, 88.2kHz, 48kHz, 44.1kHz L-PCM format USB Audio stream.
  • Compatible with USB Audio Class 1. No need to install the dedicated driver both Windows PC and MacOSX 10.6. x.
  • Includes reputed Multibit DAC(PCM1704) and TPA6120A Headphone Amp.
  • Two Digital Audio input. USB(High-Speed) port and S/PDIF(COAX, 75 Ohm).
  • Three Stereo Analog Output. Balanced/XLR (L,R), Un-balanced(RCA L,R), HPJ(6.35 mm)
USB Digital Audio Transport
RAL-24192UT1
  • 24bit/192kHz HD-Audio ready USB DAC with HPA. Accepts 24bit/192kHz, 176.4kHz, 96kHz, 88.2kHz, 48kHz, 44.1kHz L-PCM format USB Audio Stream.
  • Compatible with USB Audio Class 2. The dedicated driver must be installed on Windows PC. No need to install the driver for MacOS X 10.6.5 or later.
  • Works with USB Bus Power or External DC+5V Power Adapter.
  • One Digital Audio input. USB (High-Speed) Type-B port.
  • One Digital Audio Output. S/PDIF (COAX, 75ohm, Isolated by transformer, 0.5Vp-p)
  • Two Stereo Analog Output. Un-balanced(RCA L,R), HPJ(6.35mm)
DSD and HD-PCM(24/192k) ready USB DAC
  • Ready for DSD64 and High Density 24bit / 192kHz PCM.
  • Compatible with your favorite Music Player. Don't need to change Music Player.
  • Just Plug & Play with Windows PC and Mac.
  • Excellent Digital circuit design and firmware.
  • High quality and high performance Analog circuit.
  • Powerful Power Circuit supports powerful sound.
Audio phile-grade DAC and balanced Headphone amplifier
  • Ready for DSD64 and High Density 24bit / 192kHz PCM.
  • Compatible with your favorite Music Player. Don't need to change Music Player.
  • Just Plug & Play with Windows PC and Mac.
  • Excellent Digital circuit design and firmware.
  • High quality and high performance Analog circuit.
  • Powerful Power Circuit supports powerful sound.
DSD and HD-PCM(24/192k) ready USB DAC with Balanced Headphone amp
  • Ready for High-Rsolution Music to DSD128, 32bit / 384kHz PCM.
  • Includes Audiophile-grade 32bit DAC, ESS SABRE32-2M ES9018K2M.
  • In USB DAC mode, RAL-KEB02iP works fully compatible with USB Audio Class 2 and supports Isochronous-Asynchronos transfer.
  • Headphone amp output level selector and DAC analog filter curve selector.
Blanced Portable Headphone amplifier
  • The high-quality and high output with balanced BTL connection.
  • Includes TPA6111 Headphone Amplifiers for separate the left and right.
  • One Analog Audio Input. 3.5¤ćaudio phone jack.
  • Two monaural Analog Audio Output. balanced(L,R) 2.5¤ćaudio phone jack.
  • Works with three AAA batteries.
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Technical Brain Amplifier >> Technical Brain Web site

Monaural Power Amplifier
  • Monaural Power Amplifier 350W(8ohm).
  • High Band width, DC to 100kHz.
  • Patented Emitter resister less circuit.
Stereo Pre Amplifier
  • Stereo Pre Amplifier.
  • Complete Full balanced Non-Feedback circuit.
  • Complete DC amplifier circuit.
Stereo Phono EQ Amplifier
  • Stereo Phono Equalizer Amplifier.
  • Full balanced complete DC circuit.
  • CR type equalizer, non-feedback circuit.
  • Emitter resister less output stage circuit.
  • Dc-servo circuit.
  • Brand new high-powered Power unit.
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RATOC Systems

SxS Card Adapter for Desktop PC/Mac
  • The PE51U is a SxS memory card adapter that supports 'Hot-Swap' on Windows and Macintosh. The proprietary driver makes it possible to swap memory cards without restarting the system.
SPI/I2C Protocol Emulator
SPI/I2C Bus Analyzer
USB to Serial converter (Micro USB B type)
UltraSCSI CardBus PC Card
  • Supports Ultra SCSI rate up to 20MB/sec.
  • 32bit DataBus and 33MHz operation .
  • Supports Bus-Mastering data transfer.
  • Ready for ACPI.
  • Low power consumption.
  • Supports scatter/gather and tagged queue .
  • Linux Ready. Available for high-speed data backup.
  • Supports Plug & Play, allows adding and removing SCSI devices without system re-start.
USB2.0 Removable Case kit for 3.5" IDE HDD
  • Still need IDE.
    Replace your PC to new one, but new PC has no IDE interface.
    Can access to IDE hard drives on new PC ?
    U2-MDK1 provides access to the IDE hard drive via USB on new PC.
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