UltraDac 規格與特點
*Top-grade Digital/Analog Converter with Current Injection current-to-voltage (I/V) conversion
*High-resolution asynchronous USB interface up to 32bit/384kHz
*USB PCM: 16…32bit; 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384kHz.
*DXD support without FIR filtering.
*USB DSD: DSD64, DSD128.
*ASIO driver for Windows; Linux and Mac compatible
*AES/EBU, coaxial and Toslink digital inputs up to 24bit / 192kHz
*Balanced, reference-class headphone amplifier with digital/analog power conversion (DAPC), load-effect free (LEF) technology, 15A bipolar Voltage output devices combined with MOSFET current sources, a super-low impedance LEF output stage, and lossless Digital Intelligent Gain Management (DIGM) volume control.
*Balanced LEF, CI-compatible preamp that optionally operates in B.M.C. Mode, with DIGM and bipolar voltage source combined with a DMOS current source and LEF-balanced output stage.
*Separate volume controls for the line and headphone sections (the line volume position 59 represents a DAC standard output level)
*Second-generation DIGM with optimized gain distribution between power amps and internal and DIGM volume levels
*Optical B.M.C. Link for connecting with B.M.C. amps like the PureAmp
*Remote Control including PureAmp functions.
*Top grade parts like MPP (conductive film polypropylene, non inductive) and balanced current capacitors, precision metal film resistors…
Massive and stylish extruded aluminum chassis
*Dimensions: 14.37 x 4.06 x 12.91 inches, W/H/D (365 x 103 x 328 mm)
*Weight: 7 kg

PureAmp 規格與特點
*2 channels of 100 Watts into 8 Ohms, and 2 channels of 150 Watts into 4 Ohms.
*A large 300W toroidal transformer, and 180.000uF energy storage, provide the muscle behind the music even as the amp itself runs cooler than traditional class A designs, while being more linear than traditional Class A.
*An adaptive cooling system reduces the temperature range in operation and is the key for providing high power from a small sized analog amplifier.
*Load Effect Free (LEF) Technology handles a speaker’s current demand separately from the voltage demand. This helps the amplifier achieve high output and high-quality reproduction. It provides a top-level signal without loading the signal transistors, thus avoids distortion and increases efficiency. The result is a level of musical complexity that brings to life delicate details, rock-shaking power, high dynamics, sonic vitality, and accurate imaging.
*Current Injection (CI) Technology processes the input current from a signal source through a special XLR-CI input and the amplifier’s circuitry until it attains the desired output voltage for the loudspeakers, increasing the purity of the amplified signal and the immediacy of its musical reproduction, by skipping any gain stage and using an original source signal.
*Digital Intelligent Gain Management (DIGM) is a volume and amplification control system that recalibrates gain without dividing and downgrading the input signal. It lets users adjust left/right output balances in 66 1.5-decibel increments. It also avoids unnecessary attenuation of the input signal and excessive amplification, eliminates the need for a preamp circuit, and allows a DAC or other sound sources to directly connect to the amplifier. Less amplification means less distortion and noise, which leads to a more natural musical quality.

B.M.C. Audio: http://bmc-audio.de/

About Ted Chen

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MY-HIEND 資深編輯,主要負責採訪與器材測試的工作。