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Hifiman EF600 Amplifier and DAC
Product SKU: EF600
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Designed for use as a DAC, or independent headphone amplifier, the EF600 features an industrial design that is not only aesthetically appealing, it also serves as a headphone stand, reducing desktop clutter. Included are fully balanced input/output connections, high-resolution Bluetooth connectivity, an independent power supply and a thermal optimized tower case.
The EF600 includes two Hymalaya Pro modules for unsurpassed sonic output, especially when compared to the more commonplace PCM1704k module. The Hymalaya Pro, with the added support of a new algorithm and 0.01% precision resistors, reaches a THD (total harmonic distortion) rate of -60dB 2%. In plain English, distortion is reduced to a previously unheard of low with no audible distractions.
Bluetooth connectivity is achieved with an upgraded design that supports multiple codecs, including LDAC, delivering lossless sound reproduction for audiophile-level sonics.
An array of RCA and XLR inputs allows the EF600 to be used as a high-performance headphone amplifier that is fully compatible with most CD and SACD players, thanks to its balanced output.
The EF600 requires the bare minimum of desktop or rack space. The physical dimensions are: 104mm/4” x 135mm/5 1/4” (top); 104mm/4” x 165mm/6 1/2” (bottom) ; 283mm/11”(height). A new industrial design that serves as a headphone stand when the DAC/amp is not in use.
The front panel includes four balanced outputs – 6.35mm single-ended, 3.5mm single-ended, 4.4mm balanced, XLR four-pin balanced – in addition to a four-level function switch and volume control. The rear input panel includes jacks for RCA, USB-B, and USB-C source connectors, in addition to dual (L/R) XLR three-pin full balanced line outputs.
Signal-to-noise ratio is measured at 118dB (weighted), channel separation is 131+/-3dB, and THD+N (line out) is 0.0014% (-8dB).
Maximum power output is robust at 5.12 wpc @32R balanced/1.8 wpc @32R unbalanced, giving the EF600 the power to drive the majority of low-efficiency planar headphones, including HIFIMAN Electronics’ flagship model, Susvara.