SPL Channel One Model 2950
SPL Channel One Model 2950 Digital/Analog Transistor/Tube Channel Strip
The Channel One comes with all tools onboard for recording voices, instruments and digital or analog audio sources with the highest sound quality:
- Transistor/tube preamplifier
- SPL's De-Esser
- Compressor/limiter with noise gate
- EQ section
- Headphone monitor
- Options: 24/96 A/D converter, Lundahl I/O transformers
Each stage contributes to the concept as the ideal recording frontend for world-class sounds the easy way: intelligent automation ensures both intuitive and fast as well as musical operation for the finest recording results.
The preamp stage provides three optimized inputs:
- The microphone input features 48V phantom power, phase reverse function and a subsonic filter.
- The low-impedance Line input has a precise balancing stage for connecting studio equipment.
- The low-noise, high-impedance instrument input is easily accessible on the front panel.
The renowned SPL De-Esser subtly yet effectively removes offending sibilants by reliably eliminating only the "S" frequencies with its unique phase-canceling processing technology. Auto-Threshold ensures constant processing even with varying microphone distances. All you need do is to turn the knob until the sibilants are gone.
The Insert (Send/Return) allows for insertion of external processors or can be used to record the pure preamplifier signal.
This section is based on SPL's Double-VCA-Drive circuitry for outstanding noise and distortion characteristics. The compressor is extremely easy to use via a single knob. But the signal-dependent automation not only allows for set and forget operation, it also grants very musical results in any situation. Actually it is much more difficult to destroy a recording with wrong compression settings.
The noise gate operates flawlessly - reverbs are recognized and not cut off.
Three band EQ
The Channel One provides a new EQ design especially optimized to process vocals, acoustic and electronic instruments. Low, Mid Hi, and Air-Bands allow for both corrective adjustments and/or effective sound designing processing. Gadget: a distortion control might be useful sometimes to apply for decent distortions to signals that deserve it.
Headphone monitor stage
Provides an individual mix for the singer/speaker - latency problems from digital systems are avoided.
- Frequency response 10 Hz-100 kHz (100 kHz = -3 dB)
- Common mode rejection (@ -20 dBu) 1 kHz:
- -80 dB / 10 kHz: -78 dB
- THD & N Gain: A-weighted
- 20 dB -97.1 dBu
- 40 dB -91.1 dBu
- 65 dB -69.4 dBu
- Dynamic range 118 dB
- Frequency response 10 Hz-180 kHz (100 kHz = -3 dB)
- Common mode rejection (@ 0 dBu) 1 kHz:
- -80 dB / 10 kHz: -78 dB, Line input only
- Total harmonic distortion Gain (A-weighted):
- 5 dB -99.4 dBu
- 20 dB -97.2 dBu
- 42 dB -79 dBu
- Input impedance Line: 20 kOhm / Instr.: 1 MOhm
- Max. input level Line: +22 dBu / Instr.: +14 dBu
- Dynamic range 119 dB
- Max. output level XLR/jack +20 dBu
- Output impedance 50 Ohm
- Toroidal transformer 20 VA
- Fuses 315 mA (230 V/50 Hz)
- 630 mA (115 V / 60 Hz)
- Standard EIA 19"/IHE 482 x 88 x 210 mm
- Weight 4.15 kg
- 24bit/192kHz A/D Converter ($200)
- Mic in Lundahl transformer ($219)
- Line out Lundahl transformer ($179)
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