Стою перед выбором iBasso DX90 (5 160 грн.) или FiiO X5 (3 806 грн.)
Основное использование в составе стационарной аппаратуре, дополнительное - портативное, с помощью наушников.
Формат записей Flac. Плеер будет подключаться к усилителю Yamaha CA-1010 и ламповому ресиверу Pioneer SX800A. Акустика - Sansui SP-2500A.
В обоих плеерах есть аналоговый линейный выход что для моих требований является обязательным условием.
Характеристики:
iBasso DX90:
Line out:
Frequency Response: 17Hz~20KHz +/-0.1dB
S/N: -119dB +/-1dB
THD+N: 0.0015%
Crosstalk: 115dB (1KHz)
Output Level: 1.7Vrms (1kHz 0dB)
Headphne out:
Frequency Response: 17Hz~20KHz +/-0.1dB
THD+N: 0.0015% (32ohm load)
Output Level: 1.3Vrms(Low gain), 2.0Vrms(Mid gain), 2.8Vrms(High Gain)
S/N: -118dB +/-1dB(Low gain), -116dB +/-1dB(Mid gain), -115dB +/-1dB(High Gain) (32ohm Load)
Crosstalk: 75dB (1KHz,32ohm Load)
Output Impedance: <0.1ohm
Battery Life: 8.5hours
Battery Charge Time: 3hours with AC adapter, 5.5hours with PC USB port
On Board Flash: 8GB
Audio Formats Supported: APE, FLAC, WAV, WMA, AAC, ALAC, AIFF, OGG, MP3
Case dimension: 2.52W x 3.98L x 0.67H (inch)
64W x 100L x 17H (mm)
Weight: 140g or 4.94oz

FiiO X5:
Model/Number X5 Phone out（PO) 3.5mm headphone output jack
Color Available Black Headphone Impedance Range 16~300Ω
Dimensions 67.6X 114 X 15.6 （mm） Volume control type 120 levels digital volume control mode
Weight 195 g Bass Boost 10 bands graphic EQ
Display Screen IPS 400X360 Treble 10 bands graphic EQ
Analog audio output jack 3.5mm headphone output jack Left right channel adjustment 5 dB
Digital audio output jack 3.5mm headphone output jack Gain selection 0/6 dB
USB DAC Supports 192KHz/24Bit
Partial performance parameters for line output
THD+N < 0.0025%@1KHz SNR > 115dB (A-Weight ）
Frequency Response 20Hz~20KHz（+/-0.1) Dynamic range > 115dB
Crosstalk > 100 dB @10KΩ @1KHz Line output Level > 1.5 Vrms
Part of the Performance Parameter of Phone out
Output Power 1 > 460 mW@16Ω THD<1% Output Impedance <0.26Ω
Output Power 2 > 255 mW@32Ω Crosstalk >75 dB@1KHz
Output Power 3 > 28 mW@300Ω THD+N < 0.003%@1KHz
Frequency Response 20Hz~20KHz（+/-0.1) MAX output voltage > 8 Vp-p
SNR > 115 dB (A计权) MAX output current > 150 mA
Power and Battery
Power USB 5V/500mA
recommend USB 5V 2A Battery Capacity 3700 mAH
Charge display red light indicates , green light turns on after fully charged Battery Life >10 Hours （firmware un-upgrated ）
Battery display Yes Charging Time < 4 Hours
Audio format supported
Lossless：
APE (Fast):192K/24B; APE (Normal):96K/24B; APE (High):96K/24B; FLAC：192K/24B; WAV：192K/24B; WMA 9.1 LOSSLESS：96K/24B; Apple Lossless：192K/24B;
Lossy compression：
MP2、MP3、AAC、ALAC、WMA、OGG....