睿志音响

	Wisdom in mind, enthusiasm at heart.

NFB-15.1

Discrete DAC+ Headphone amplifier / Preamplifier
Supports full speed Asynchronous Transfer Mode
Built in the Tenor TE8802 chip
Built in 2 Pieces Hi-end grade WM8741 Chips
Price : (Exclude shipping cost)
NFB-15.1 USD235

NFB-15.1

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NFB-15
　

NFB-15.1

Digital Filters Description

Frequency response diagram from headphone / RCA output
( Click to zoom)

OS : 8 Filter : 1	8X oversampling , Linear phase apodising filter. Up to 48KHz support.	Input sampling 44.1KHz,24Bit, -0.2DB at 20KHz , -3DB at 25KHz	Input sampling 48KHz,24Bit, -0.2DB at 20KHz , -3DB at 25KHz


OS : 8 Filter : 2	8X oversampling , Minimum phase apodising filter. Up to 48KHz support.	Input sampling 44.1KHz,24Bit, -2.5DB at 20KHz	Input sampling 48KHz,24Bit, -0.2DB at 20KHz , -3DB at 23KHz


OS : 8 Filter : 3	8X oversampling , Linear phase half-band filter for backward compatibility. Up to 48KHz support.	Input sampling 44.1KHz,24Bit, -2.5DB at 20KHz	Input sampling 48KHz,24Bit, -0.2DB at 20KHz , -3DB at 23KHz


OS : 4 Filter : 1	4X oversampling , Linear phase 'soft-knee' filter. Up to 96KHz support.	Input sampling 44.1KHz,24Bit, -3DB at 15KHz	Input sampling 48KHz,24Bit, -3DB at 17KHz	Input sampling 96KHz,24Bit, -0.2DB at 20KHz , -3DB at 31KHz


OS : 4 Filter : 2	4X oversampling , Minimum phase 'soft-knee' filter. Up to 96KHz support.	Input sampling 44.1KHz,24Bit, -3DB at 15KHz	Input sampling 48KHz,24Bit, -3DB at 17KHz	Input sampling 96KHz,24Bit, -0.2DB at 20KHz , -3DB at 31KHz


OS : 4 Filter : 3	4X oversampling , Linear phase 'brickwall' filter. Up to 96KHz support.	Input sampling 44.1KHz,24Bit, -2.8DB at 20KHz	Input sampling 48KHz,24Bit, -0.3DB at 20KHz , -3DB at 24KHz	Input sampling 96KHz,24Bit, -1DB at 20KHz , -3DB at 42KHz


OS : 2 Filter : 1	2X oversampling , Linear phase 'soft-knee' filter. Up to 192KHz support.	Input sampling 44.1KHz,24Bit, -3.5DB at 20KHz	Input sampling 48KHz,24Bit, -2.7DB at 20KHz	Input sampling 96KHz,24Bit, -0.8DB at 20KHz , -3DB at 25KHz


OS : 2 Filter : 2	2X oversampling , Minimum phase 'soft-knee' filter. Up to 192KHz support.	Input sampling 44.1KHz,24Bit, -3.2DB at 20KHz	Input sampling 48KHz,24Bit, -2.5DB at 20KHz , -3DB at 22KHz	Input sampling 96KHz,24Bit, -0.5DB at 20KHz , -3DB at 25KHz


OS : 2 Filter : 3	2X oversampling , Linear phase 'brickwall' filter. Up to 192KHz support.	Input sampling 44.1KHz,24Bit, -2.5DB at 20KHz , -3DB at 22KHz	Input sampling 48KHz,24Bit, -2DB at 20KHz , -3DB at 23KHz	Input sampling 96KHz,24Bit, -0.2DB at 20KHz , , -3DB at 40KHz

Improvement may result in changes in specifications and design without notice.
S/N Ratio	119db
Output Level	Headphone output : 10V RMS Variable output : 5V Max Fixed output: 2.25V RMS
Output power Only for headphone.	3500mW/25 ohm 1800mW/50 ohm 900mW/100 ohm 300mW/300 ohm 150mW/600 ohm
Output impedance	2 ohm / Headphone output 2 ohm / DAC output
Input Sensitivity	0.5 Vp-p(75 Ohms, Coaxial) 19 dBm (Optical) USB1.1 / 2.0 (Full Speed)
Support Sampling	USB model: 44.1kHz, 48kHz, 96kHz, 176.4kHz , 192kHz Coaxial model: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz Optical model: 44.1kHz, 48kHz, 88.2kHz, 96kHz
Frequency Breadth	20Hz - 20KHz （-0.2DB）
Power Requirement	1 Version 100-120V AC 50/60 Hz 2 Version 220-240V AC 50/60 Hz
Power Consumption	12W
Package Weight	2KG
Dimensions	W163 X L210 X H42(MM, Fully aluminium )
Accessories	AC power cord X1 USB cable X1 Optical cable X1