BEL CANTO E1X DC1 Specifications
Maximum Data Input Rates
24bit Data to 192ks/s:
AES, SPDIF, TOSLINK
24bit Data to 384ks/s, MQA, and DSD64/128:
10/100 Ethernet
24bits to 192ks/s and DSD64 (DoP):
USB2 Audio
Low Level Outputs
Line Level Analog:
4.5Vrms with Bass Management
Headphone:
4.5Vrms maximum, 32ohm minimum load
MM/MC Input
Input Sensitivity:
MM: 2.5mV to 5mV; MC: 0.25mV to 0.5mV
Input Load:
MM: 47K ohms; MC: 50, 100, 500, 1000
RIAA Accuracy:
+/- 0.25dB, 50Hz-15kHz
THD+N:
<0.01% 1kHz A-Weighted
SNR:
>70dB A-Weighted
Line Inputs
Maximum Input:
2.2 Vrms RCA
Input Impedance:
10k ohms RCA
THD+N:
0.003%, 1kHz
Dynamic Range:
110dB, A-weighted 20Hz-20kHz
Main Outputs
Balanced XLR Output and Impedance:
5.5Vrms, 100 ohms
Minimum Load:
600 ohms
RCA Output and Impedance:
2.75Vrms, 100 ohms
Performance
Dynamic Range:
126dB A-weighted
THD+N:
<0.001% 1W, 1kHz, 4 ohms
IMD (CCIF):
<0.001%, 1W, 18.5:19.5kHz 1:1, 4 ohms
General
Power Usage On:
20W
Power Usage Off:
0W
Internally Set Operating Voltages:
100-120VAC, 220-240VAC 50/60 Hz
Dimensions:
17.75 W x 15.75 D x 3.25 H inches, 451 x 400 x 83 mm
Weight:
14 lbs (6.4 kg)
The HDR-II Core digital design starts with our Ultra-Low Phase Noise Master Clocks. These superior clocks are free running and fed from dedicated ultra-low noise analog power supply regulators. There are 2 stages of asynchronous interfacing to ensure that the final DAC output is jitter free and independent from any noise on the incoming digital signals. Our custom MQA based digital filters define an optimized impulse response from all sources, MQA, PCM, Analog and DSD. Figure 3 shows this impulse response with a 44.1kHz CD test signal. Our custom digital filters are designed to largely mimic the time domain response of an audio signal traveling through 10 meters of air. This superior time domain response insures the best sonic performance for all signals reproduced by our HDR-II Core DAC technology. MQA, High Bit Rate PCM, Analog and DSD all approach the impulse response resulting from travel through 10 meters of air, retaining the critical time relationships in the original music.
Pure Class A Differential Analog Output
A critical advantage of our HDR-II Core architecture is how the Class A Differential Current Mode output from our DAC operates in concert with our custom balanced analog section to best preserve the original dynamics of the recording. The large constant-bias differential currents impose pure Class A operation to every part of the analog output stages, every precision resistor, film capacitor and amplification device is biased with constant current and voltage. This constant bias keeps all components in thermal stasis and insures that all the original signal dynamics are retained. Through careful parts choices, architectural considerations and design details, refined over numerous generations, Bel Canto’s HDR-II Core has been optimized to render pure, dynamic analog signal quality from all music sources.
Phono
Our analog dual stage phono architecture consists of an ultra-low noise input RIAA amplifier with precision filter components and fixed 40dB gain. This is followed by a digitally controlled analog variable gain stage to adapt the RIAA gain for a broad range of MM and MC cartridges. Input loading is controlled from the menu so that you can load your MC cartridge with the optimum impedance. This new phono architecture is optimized for accurate, low noise RIAA filter operation and compatibility with many cartridges.
Headphone Output
The Headphone output is driven from a dedicated 112dB dynamic range DAC through a high current output buffer stage. It can drive 32-ohm phones to high level and provide excellent headphone sonic detail and performance.
Sub Output
Bass Management functions include independent selection of a 2nd order Butterworth low pass and high pass filter set. The main speakers can be run full range or rolled off below frequencies from 40 to 120 Hz. The subwoofer low pass can be set for full range or frequencies from 40 to 120 Hz. This approach drives maximum flexibility to optimize the integration of a subwoofer. There is also +/-6dB of gain trim range on the subwoofer output.
Line Level Inputs
There are 2-line level analog inputs that provide 110dB of dynamic range and can be used for legacy analog sources such as tape, tuner or a home theater bypass where the volume level would be set to a high setting (84.0) on the ACI 600 and volume is controlled through the home theater processor. These inputs enhance the ability to integrate the E1X DAC into many different systems with many different signal sources.
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