iFi Audio iDAC: Single-box digital-to-analog converter. Digital input: USB Type B. Formats supported: all PCM-output audio codecs (AIFF, WAV, MP3, etc.). Maximum word length: 24 bits. Maximum sampling rate: 192kHz. Analog output: 1 pair (RCA). Signal/noise: >111dB. THD: <0.005%. Frequency response: 3Hz–33kHz, +0.1dB/–0.3dB. Maximum headphone output power: >150mW at 15 ohms. Maximum headphone output voltage: 3.3V into >100 ohms. Output impedance: <1 ohm. Power consumption: <2.5 W.
Price: $299.
iFi Audio iUSBPower: Single-box DC power supply. Digital input: USB Type B. Digital/DC output: USB Type A (DC plus digital signal), USB Type A (DC only). Input voltage: 9V wall wart (supplied). Output voltage: 5.0V, ±0.5%. Output current: 1A. Power consumption: <9W.
Price: $199.
Both
Dimensions: (each) 2.7" (68mm) W by 1.1" (28mm) H by 6.2" (158mm) D. Weight: 0.43 lb (0.2kg).
Serial numbers of units reviewed: None found.
Approximate number of dealers: 25.
Manufacturer: iFi Audio, Abbingdon Music Research, 22 Notting Hill Gate, London W11 3JE, England, UK. Tel: (44) (0)870-420-5505. Fax: (44) (0)700-596-1065. Web: www.ifi-audio.com. US distributor: Avatar Acoustics, 545 Wentworth Ct., Fayetteville, GA 30215. Tel: (888) 991-9196. Web: www.avataracoustics.com.
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COMMENTS
Hi John
Good to see some new graphs in your plots showing the measurement of the behavior of the digital reconstruction filter with a technique, we discussed in January at the CES. With that, you and your readers can see more clearly, what is going on in the digital filter, at least in the frequency domain.
Juergen
I ordered and received an iDac and have loved the sound, but I experienced a problem with the mini-jack. It doesn't hold the plug securely and that results in crackling sounds. I use it to feed sound to an audio system (not headphones) and with the volume control so close the jack, when I make volume adjustments the jack makes and loses connection - heard audibly in the sound system
I returned the first unit and after waiting months to get a replacment found that the replacement does the same thing. Seems to be a design flaw..
Anyone else experience this or have a solution?
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