今天要拆的主角
拆开外壳有一个铁盒子
拆开铁盒子后的主板
主板背面
主要芯片特写
Specifications
Digital Inputs and Outputs
Connector (S/PDIF) RCA Phono, 75 Ohm
Formats (S/PDIF and TOSLINK) S/PDIF (24 bit), IEC 958, Pro-status bits
Connector (ADAT® or TOSLINK) Optical Pipe
Format (ADAT®) 8-ch. @ 48 kHz, 4-ch. SMUX @ 96 kHz
Digital IO Engine TCAT DICE II, handling all IO formats
Clock and Jitter
Internal Sample Rates 44.1, 48, 88.2, 96, 176.4 and 192 kHz
External Sample Rates 43 to 193 kHz, jitter rejection at all rates
Jitter Rejection Engine JET™ technology in TCAT DICE II
Jitter Rejection Filter (4th order) > 3 dB @ 10 Hz, > 100 dB @ 600 Hz
DIO Interface Jitter < 1 ns peak, BW: 700 Hz to 100 kHz
AD/DA Conversion Jitter < 42 ps RMS, BW: 100 Hz to 40 kHz
Digital Output Phase (stand-alone and across network) < 0.5 % of Sample Period
Input Slip Sample Tolerance(all DIs) +50 % to -50 % of sample period
Processing Delay DIO @ 96/48 kHz 0.15/0.3 ms
Frequency Response DIO DC to 23.9 kHz ± 0.01 dB @ 48 kHz
Line Inputs Ch. 1, 2, 3, 4
Connectors 1/4" Phone Jack (balanced)
Impedance, Bal./Unbal. 20 kOhm/25 kOhm
Full Scale Input Level @ 0 dBFS +13 dBu
THD+N < -100 dB (0.001 %) @ 1 kHz, -1 dBFS
SNR >111 dB(A), >108 dB, 20 Hz to 20 kHz
Freq. Response +0/-0.5 dB, 20 Hz to 20 kHz
Crosstalk < -100 dB, 20 Hz to 20 kHz
ADC
A to D Conversion 24 bit, 128 x oversampling bitstream
A to D Delay 0.68 ms / 0.63 ms @ 44.1 kHz / 48 kHz
Mic. Inputs Ch. 1, 2
Connectors Neutrik Combo (XLR)
Sensitivity Full Range Pad on/off -10/+10 dBu <> -52/ -32 dBu
Total Preamp gain 62 dB
Impedance, Pad on/off 2000/1300 ohm
NF @ Rg = 150 ohm, Max. Gain < 4 dB
EIN @ Rg = 150 ohm, Max. Gain < -127 dBu
THD+N, Min. Gain < -100 dB (0.001%) @ 1 kHz, -1 dBFS
SNR, Min. Gain >109 dB(A), >106 dB, 20 Hz to 20 kHz
48 bit Precision EQ
Hi Gain +/- 12 dB
Hi Frequency 200 Hz to 40 kHz
Hi Bell On: 6 dB/oct. shelve / Off: Parametric
Hi Mid Gain +/- 12 dB
Hi Mid Frequency 200 Hz to 20 kHz
Hi Mid Bandwith 0.10 to 4.0
Lo Mid Gain +/- 12 dB
Lo Mid Frequency 20 Hz to 2 kHz
Lo Mid Bandwidth 0.10 to 4.0
Lo Gain +/- 12 dB (only available when Lo cut is off)
Lo Frequency 20 Hz - 400 Hz
Lo CUT On: Cut / Off: 6 dB/oct. shelve
Compression/De-Essing
Compression/De-Essing styles Female Voice, "SoftFemale Voice", "HardMale Voice", "SoftMale "Voice", "Hard", "Guitar", "Bass", "Speak", "Sax", "Trumpet", "Snare", "Percussion", "All purpose"
Instr. Inputs Ch. 1, 2
Connectors Neutrik Combo (1/4" Phone Jack)
Sensitivity Range -25 dBu <> +17 dBu
Total Preamp gain 42 dB
Impedance 1 MOhm
THD+N, Min. Gain < -100 dB (0.001%) @ 1 kHz, -1 dBFS
SNR, Min. Gain >107 dB(A), >104 dB, 20 Hz to 20 kHz
Crosstalk < -100 dB, 20 Hz to 20 kHz
Monitor/Line Outputs Ch. 1, 2, 3, 4
Connectors 1/4" Phone Jack. Ground sensing design.
Impedance < 100 Ohm
Level Range (Ch. 1, 2) -40 dBu <> +12 dBu (analog gain scale)
Fixed Full Scale Range (Ch. 3, 4) +12 dBu
THD+N < -94 dB (0.002%) @ 1 kHz, -1 dBFS
SNR >111 dB(A), >108 dB, 20 Hz to 20 kHz
Freq. Response +0/-0.1 dB, 20 Hz to 20 kHz
Crosstalk < -100 dB, 20 Hz to 20 kHz
DAC
D to A Conversion 24 bit, 128 x Oversampling Bitstream
D to A Delay 0.70 ms / 0.65 ms @ 44.1 kHz / 48 kHz
Headphone Outputs
Connectors 2 x 1/4" Phone Jack (Stereo)
Impedance 80 Ohm
Gain Level Range -80 dBu <> +16 dBu @ 300 ohm (analog gain scale)
THD+N < -94 dB (0.002%) @ 1 kHz, -1 dBFS
SNR >103 dB(A), > 100 dB, 20 Hz to 20 kHz
Freq. Response +0/-0.1 dB, 20 Hz to 20 kHz
Crosstalk < -100 dB, 20 Hz to 20 kHz
Power @ 40 Ohm Load 200 mW
Power @ 600 Ohm Load 93 mW
EMC
Complies With EN 55103-1 and EN 55103-2, FCC part 15 Class B, CISPR 22 Class B
Certified To IEC 60065, EN 60065, UL60065 and CSA E60065 CSA FILE #LR108093
Environment
Operating Temperature 32° F to 122° F (0° C to 50° C)
Storage Temperature -22° F to 167° F (-30° C to 70° C)
Humidity Max. 90 % non-condensing
Control Interface
MIDI In/Out: 5 Pin DIN
FireWire (DAW) IEEE 1394a, IEC 61883
General
Dimensions (W x H x D) 9.28" x 2.48" x 9.5" (235.8 x 63 x 241.2 mm)
Weight 3.3 lb. (1.5 kg)
Finish Acrylic front panel. Plated and coated steel back plate. Rubber coated soft touch cover surrounding metal chassis.
PPM Meter (Ch. 1, 2) 3 LEDs per channel
Mains Power Supply (included) 12V DC, Adapter for 90 to 240 VAC, 50 to 60 Hz (auto select)
FireWire bus-powered 8 to 30 VDC
Power Consumption <14 W
