Istanbul Istanbul DAC is a non over-sampling, no digital filter, no op-amp, no feedback structured DAC. This tends to produce most realistic and natural sound. Istanbul DAC is capable of up to 24bits/192kHz digital signal inputs yet remains driving legendary PCM61P-K R-2R digital to analog output. The USB input section is in asynchronous operation. Total four independent digital inputs; BNC, USB, RCA and Toslink. The 4 digital inputs are independent to each other, only one among them will be active and is controlled by the tact switches located in front panel. Tube buffered output, tube in stalled is 5670 tube. Tubes can be used: 5670, 2C51, 396A, 6385, 6CC42, 6854, 6N3, 6854, CV2575, CV4013, CV5894, CV8247, CV2381 115/230V power supply selectable from internal PCB jump pins setting Available in black cabinet onlyNo powercord is included when ship out ? Specifications: Digital Receiver CS8416 D/A converter PCM61P-K I/V stage: discrete ideal transistors (OPA861 used as transistor) , no feedback Frequency response: 20 Hz to 20 kHz (± 2dB) Output impedance: 32 ohms Output level: 2.6 Vrms All inputs support 16/24 bits/ 32 kHz up to 192 kHz Dimensions clear (W x D X H) 276 x 150 x 60 mm Dimensions w/ socket (W x D X H) 295 x 170 x 60 mm Weight 2 kg All our DACs installed C-Media CM6631A chip as USB receiver.For Windows users: (Mac and Linux not influenced)Microsoft hasnt recognized usb 2.0 audio as standard Windows topology until very late version of W10.So,Before mid-2020, our DACs USB section configured as PID=0319 (use customized driver, 1.03 is recommended)In mid-2020, we start to configure our DACs to be PID=0004 (use W10 in box standard driver)?In PID=0004 condition, to use W10 in box standard driver you need to plug in our DAC and let W10 to search driver from the Web and then the W10 in box standard driver (digital signed by Microsoft) will be installed by Microsoft. If not automatic execute, you have to go control panel to install this in box driver. Why we start to configure our DAC to be PID=0004 is because that this in box driver can be automatically updated if necessary in every W10 update. PID=0319 and PID=0004 can be changeable by the firmware tool FWUdate.exe (2.0.1.11):to erase the current firmware and exit.unplug DAC and re-plug in and execute FWUpdate.exe and choose one of the digital unsigned hex to install.What PID now can be checked by FWUpdate.exe too If you purchase and we supply tracking no. but you cant get trace result from eBay, please use the provided tracking no. and use www.17track.net to trace the shipment.

Istanbul Istanbul DAC is a non over-sampling, no digital filter, no op-amp, no feedback structured DAC. This tends to produce most realistic and natural sound. Istanbul DAC is capable of up to 24bits/192kHz digital signal inputs yet remains driving legendary PCM61P-K R-2R digital to analog output. The USB input section is in asynchronous operation. Total four independent digital inputs; BNC, USB, RCA and Toslink. The 4 digital inputs are independent to each other, only one among them will be active and is controlled by the tact switches located in front panel. Tube buffered output, tube in stalled is 5670 tube. Tubes can be used: 5670, 2C51, 396A, 6385, 6CC42, 6854, 6N3, 6854, CV2575, CV4013, CV5894, CV8247, CV2381 115/230V power supply selectable from internal PCB jump pins setting Available in black cabinet onlyNo powercord is included when ship out ? Specifications: Digital Receiver CS8416 D/A converter PCM61P-K I/V stage: discrete ideal transistors (OPA861 used as transistor) , no feedback Frequency response: 20 Hz to 20 kHz (± 2dB) Output impedance: 32 ohms Output level: 2.6 Vrms All inputs support 16/24 bits/ 32 kHz up to 192 kHz Dimensions clear (W x D X H) 276 x 150 x 60 mm Dimensions w/ socket (W x D X H) 295 x 170 x 60 mm Weight 2 kg All our DACs installed C-Media CM6631A chip as USB receiver.For Windows users: (Mac and Linux not influenced)Microsoft hasnt recognized usb 2.0 audio as standard Windows topology until very late version of W10.So,Before mid-2020, our DACs USB section configured as PID=0319 (use customized driver, 1.03 is recommended)In mid-2020, we start to configure our DACs to be PID=0004 (use W10 in box standard driver)?In PID=0004 condition, to use W10 in box standard driver you need to plug in our DAC and let W10 to search driver from the Web and then the W10 in box standard driver (digital signed by Microsoft) will be installed by Microsoft. If not automatic execute, you have to go control panel to install this in box driver. Why we start to configure our DAC to be PID=0004 is because that this in box driver can be automatically updated if necessary in every W10 update. PID=0319 and PID=0004 can be changeable by the firmware tool FWUdate.exe (2.0.1.11):to erase the current firmware and exit.unplug DAC and re-plug in and execute FWUpdate.exe and choose one of the digital unsigned hex to install.What PID now can be checked by FWUpdate.exe too If you purchase and we supply tracking no. but you cant get trace result from eBay, please use the provided tracking no. and use www.17track.net to trace the shipment.