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BEHRINGER 676 Microphone Preamplifier
- ชนิด: DSP โปรเซสเซอร์
- Classic microphone/line tube preamplifier based on the classic 6176 design
- Preamplifier and compressor can be operated independently or simultaneously
- Premium selection 12AX7/ ECC83S and 12AT7/6072 tubes
- Custom-built Midas input and output transformers
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ราคาประเมินอุปกรณ์ ไม่รวมค่าติดตั้ง · ⚠️ กรุณารอยืนยันสต็อกสินค้าก่อนสั่งซื้อ
Preamp, EQ and compressor, joined by one switch.
The singer is in the booth and the take feels close. You want the microphone, the tone and the compression set once, then trusted. The 676 puts a valve preamplifier and a FET-style compressor in one unit, with Midas transformers.
A microphone, a line or a bass plugged straight in
INPUT SELECT chooses Mic at 500 Ω or 2 kΩ, Line, or Hi-Z at 47 kΩ or 2.2 MΩ. The front Hi-Z jack takes guitars or basses directly. The mic input offers up to +64 dB of gain, a -15 dB PAD and switchable 48 V phantom power. Switch phantom power on only after the microphone is connected.
Tone shaped before compression
Choose a high shelf at 4.5, 7 or 10 kHz and a low shelf at 70, 100 or 200 Hz. Each moves in fixed steps from -9 dB to +9 dB. With JOIN selected, the preamplifier feeds straight into the compressor.
From 4:1 to saturated overdrive
RATIO offers bypass, 1:1, 4:1, 8:1, 12:1 and 20:1. The All setting works at around 100:1 for a saturated overdrive. Raise INPUT for more compression and use OUTPUT to make up the gain. The VU meter shows preamp output, gain reduction or compressor output. Switch to SPLIT and the two sections work as separate devices.
Features
- Classic microphone/line tube preamplifier based on the classic 6176 design
- Preamplifier and compressor can be operated independently or simultaneously
- Premium selection 12AX7/ ECC83S and 12AT7/6072 tubes
- Custom-built Midas input and output transformers
- Rotary input selector switch gives a choice of input impedance for the Mic and Hi-Z inputs
- Input gain trim with ±10 dB range and output level controls input and output stage coloration
- 2-band shelving equalizer with switchable filters
- Switchable pad, polarity reverse, and 48 V phantom power
- Compressor with ultra-fast attack time: 20 to 800 microseconds
- Compressor with adjustable release time: 50 to 1100 milliseconds
- Vintage-style meter features both gain reduction and output
- Transformer-balanced inputs and outputs on XLR connectors
- Rugged 2U rackmount chassis for durability in portable applications
- Auto-ranging universal switch-mode power supply
| Mic max. input level | +14 dBu pad in, -1 dB pad out |
|---|---|
| Mic CMRR | Typically -90 dBu @ 1 kHz, maximum gain |
| Mic frequency response | 20 Hz to 20 kHz ±1 dB |
| Mic EIN noise at maximum gain | -122 dBu, 22Hz to 22 kHz unweighted |
| Mic distortion (THD+N) | <0.25% 50 Hz to 20 kHz, +4 dBu output |
| Mic maximum gain | +64 dB |
| Mic pad | Toggle switch, 0 dB/-15 dB |
| +48 V phantom power | Toggle switch, applies +48 V phantom power to the mic input XLR |
| Line input type | XLR, transformer balanced |
| Line input impedance | 15 kΩ |
| Line max. input level | +30 dBu |
| Line CMRR | Typically -80 dBu @ 1 kHz, unity gain |
| Line frequency response | 20 Hz to 20 kHz ±1 dB |
| Line noise at unity gain | -79 dBu, 22Hz to 22 kHz unweighted |
| Line distortion (THD+N) | <0.25% 50 Hz to 20 kHz, +4 dBu output |
| Line maximum gain | +20 dB |
| Hi-Z input type | 6.35 mm (¼") TRS jack, unbalanced |
| Hi-Z input impedance | 47 kΩ/2.2 MΩ |
| Hi-Z max. input level | +12 dBu |
| Hi-Z frequency response | 20 Hz to 20 kHz ±1 dB |
| Hi-Z EIN noise at maximum gain | -105 dBu, 22Hz to 22 kHz unweighted |
| Hi-Z distortion (THD+N) | <0.25% 50 Hz to 20 kHz, +4 dBu output |
| Hi-Z maximum gain | +44 dB |
| Compressor input type | XLR, transformer balanced |
| Compressor input impedance | 15 kΩ/600 Ω |
| Compressor max. input level | +30 dBu |
| Compressor input CMRR | Typically -80 dBu @ 1 kHz, unity gain |
| Compressor input frequency response | 20 Hz to 20 kHz ±1 dB |
| Compressor input noise at unity gain | -85 dBu, 22Hz to 22 kHz unweighted |
| Compressor input distortion (THD+N) | <0.25% 50 Hz to 20 kHz @ unity gain, +4 dBu output |
| Compressor input maximum gain | +40 dB |
| Mic input type | XLR, transformer balanced |
| Mic input impedance | 500 Ω/2 kΩ |
| Preamplifier output type | XLR, transformer balanced |
| Preamplifier output impedance | 90 Ω balanced |
| Preamplifier max. output level | +21 dBu |
| Phase reverse | Toggle switch, reverses the polarity of the output signal |
| Split/Join | Toggle switch, join connects the preamp output directly to the compressor input |
| Compressor output type | XLR, transformer balanced |
| Compressor output impedance | 110 Ω balanced |
| Compressor max. output level | +26 dBu |
| EQ low frequency select | Toggle switch, 70 Hz/100Hz/200 Hz, shelving |
| EQ high frequency select | Toggle switch, 4.5 kHz/7 kHz/10 kHz, shelving |
| Compressor attack, slow - fast control | Range 800 μs to 20 μs |
| Compressor release, slow - fast control | Range 1.1 s to 50 ms |
| Compressor input level control | Off to unity gain |
| Compressor output level control | Off to +40 dB gain |
| Compressor ratio | Rotary switch, BP = true bypass, 1:1, 4:1, 8:1, 12:1, 20:1, All > 100:1 |
| EQ low frequency cut/boost | Rotary switch, -9 dB, -6 dB, -4.5 dB, -3 dB, -1.5 dB, 0 dB, +1.5 dB, +3 dB, +4.5 dB, +6 dB, +9 dB |
| EQ high frequency cut/boost | Rotary switch, -9 dB, -6 dB, -4.5 dB, -3 dB, -1.5 dB, 0 dB, +1.5 dB, +3 dB, +4.5 dB, +6 dB, +9 dB |
| Meter source select | Rotary switch, preamp output/gain reduction/compressor output |
| VU meter | -20 dB to +3 dB (0 VU = +4 dBu) |
| Meter calibration trimmer | Set zero on the VU meter when in GR mode |
| Mains voltage | 100 to 240 V~, 50/60 Hz |
| Power consumption | 28 W max |
| Mains connector | Standard IEC receptacle |
| Fuse | T 1.6 A H 250 V |
| Power switch | Toggle switch off/on with LED power indicator |
| Standard operating temperature range | 5° C to 45° C (41° F to 113° F) |
| Ref. Code | TCR-UPXUGS |
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