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The Silver Series 386 dual channel tube mic preamp puts the best of both worlds into one affordable package by combining the warmth of the irreplaceable vacuum tube with the proprietary dbx® Type IV™ conversion system. The 386 boasts many of the same features as other products in the Silver Series, such as +48V phantom power, a phase invert switch, and low cut filtering; but also includes digital outputs in both AES/EBU, and S/PDIF formats.
The high impedance, 1/4" instrument input located on the front panel, as well as the mic/line switch, and 20 dB pad show our dedication to providing convenience in the studio. The 12 segment LED meters provide a visual indication of analog or digital levels at a glance. The rear panel includes both mic and line inputs and outputs, word clock sync input and output, and digital outputs. Add selectable sampling rates of 44.1 kHz, 48 kHz, 88.2 kHz, or 96 kHz; selectable dithering and noise shaping; and separate analog and digital output controls to this already impressive list of features, and we think you’ll agree that the 386 lives up to the innovative dbx® standards.
Recommended for: Studio.
Features
- Two channel tube microphone preamplifier
- Selectable 96kHz, 88.2kHz, 48kHz, or 44.1kHz sampling rate
- 24, 20, and 16-bit wordlengths
- Selectable dither and noise shaping
- AES/EBU and S/PDIF digital outputs
- Word clock sync input and output
- Separate analog and digital output control
- Type IV™ conversion system
- 60dB of gain and +/- 15dB of output gain
- Selectable mic/line switch
- 48 volt phantom power
- 20dB pad
- 75Hz low cut filter
- Phase reverse
- Segment LED analog/digital
Specifications
| Mic Preamp Connector | Female XLR Pin 2 Hot; Electronically balanced/unbalanced |
| Mic Preamp Input Impedance | 330Ω |
| Mic Preamp max input level | -9 dBu or +11 dBu with 20 dB pad engaged |
| CMRR | >40dB, Typically 55dB |
| Mic Preamp Equivalent Input Noise (EIN) | Typically -120 dBu with a 150Ω source load, 20Hz to 20kHz BW |
| Input Connectors | (instrument/line) 1/4" Jack |
| Input Type | (line) Electronically balanced/unbalanced; (instrument) Unbalanced |
| Max Input | (instrument/line) +21dBu balanced or unbalanced |
| Gain Adjustment Range | (drive control) Line/Instrument: -15dB to +15dB; Mic: +30dB to +60dB |
| Output Connectors | Male XLR Pin 2 Hot and TRS 1/4" |
| Output Type | Servo-balanced/unbalanced |
| Output Impedance | Balanced 120Ω, unbalanced 60Ω |
| Max Output | >+21 dBu, >+20 dBm (into a 600Ω load) |
| Digital Output Connector | XLR for AES/EBU, RCA for S/PDIF |
| Digital Output Impedance | 110Ω for AES/EBU, 75Ω for S/PDIF |
| Word Sync I/O Connectors | BNC |
| Word Sync Input Impedance | 75Ω terminated by internal jumper |
| Word Sync Input | 96, 88.2, 48, or 44.1kHz word clock |
| Word Sync Output | 96, 88.2, 48, or 44.1kHz word clock |
| Output Level | -15dB to +15dB |
| Line Switch | Selects between microphone and line inputs |
| Mic Preamp Phantom Power | +48V |
| Pad Switch | 20dB pad |
| Phase Invert Switch | Reverses pins 2 and 3 of the microphone input XLR |
| Low cut Switch | 75Hz, 12dB/octave high pass filter |
| Frequency Response | (analog) <10Hz to 75kHz |
| THD+Noise | 0.35% typical at +4dBu out, 1kHz, 40 dB gain |
| Interchannel Crosstalk | Typically –80dB, 20Hz to 20kHz |
| A/D Converter | dbx® Type IV® A/D Conversion System |
| Sample Rate | 96, 88.2, 48, or 44.1kHz selectable |
| Wordlength | 24, 20, or 16 bit selectable |
| Dither Type | TPDF, SNR2, or none |
| Noise Shape | Shape 1, Shape 2, or none |
| Digital Output | S/PDIF or AES/EBU |
| Digital Output Dynamic Range | 107dB typical, A-weighted, 22kHz bandwidth |
| Operating Voltage | DO: 120VAC 60Hz, 100VAC 50/60Hz; EU: 230VAC 50/60Hz |
| Power Consumption | 35W |
| Dimensions | 1.75'' x 7.75'' x 19'' (4.5cm x 19.7cm x 48.5cm) |
| 设备重量 | 6.89 lbs (3.17kg) |
| Reference | 0dBu = -16dFS, 0dBu-0.775Vms |
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