Solid State Logic Alpha Channel Rackmount Analog Channel Strip with Built-In ADC

BH #SOALPHACHNL • MFR #729999X1
Solid State Logic Alpha Channel Rackmount Analog Channel Strip with Built-In ADC
Key Features
  • Mic, Instrument & Line Inputs
  • Up to 75 dB of Gain
  • Variable Harmonic Drive
  • High-Pass Filter at 40/80/120 Hz
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The Solid State Logic Alpha Channel is a rackmount analog channel strip offering a single channel of microphone preamplification, equalization, dynamics processing, and analog-to-digital conversion for singers, producers, and engineers in homes, studios, and live stage applications. With up to 75 dB of gain and Variable Harmonic Drive, the Alpha Channel can deliver anything from clean and smooth tones for soft vocals to ragged and gritty distortion for pounding drums. Its XLR-1/4" combo jack accommodates mic-, line-, and instrument-level input signals.
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Expected availability: 2-4 weeks
$1,099.00
$92/mo. suggested payments
with 12 Mos. Promo Financing* 

Important Notice

  • This item is noncancelable and nonreturnable.
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Solid State Logic XLogic Alpha Channel Overview

The Solid State Logic Alpha Channel is a rackmount analog channel strip offering a single channel of microphone preamplification, equalization, dynamics processing, and analog-to-digital conversion for singers, producers, and engineers in homes, studios, and live stage applications. With up to 75 dB of gain and Variable Harmonic Drive, the Alpha Channel can deliver anything from clean and smooth tones for soft vocals to ragged and gritty distortion for pounding drums. Its XLR-1/4" combo jack accommodates mic-, line-, and instrument-level input signals.

Eliminate problematic rumble and proximity effect via the 40/80/120 Hz high-pass filter. Tonal sculpting is easily achieved with the Alpha Channel's 3-band EQ—the LF band works in shelf or bell mode, the MF band has a variable Q control, and the HF band is a dedicated shelving curve. Connect your favorite outboard processor such as a compressor to the 1/4" insert jacks, position it before or after the EQ at the push of a button, and even mix the dry send signal with the return.

Activate the intelligent auto limiter to avoid clipping through the integrated 24-bit / 192 kHz ADC, which sends digital signal to the S/PDIF output jack. A separate analog output is presented on a balanced 1/4" TRS socket. The Alpha Channel also features adjustable output gain, a -20 dB pad, a polarity switch, and selectable 48V phantom power. The Alpha Channel occupies 1 RU of rack space and includes a detachable power cable.

Transparent SSL mic preamp with 75 dB of gain and Hi-Z impedance switch
Built-in VHD (Variable Harmonic Drive) circuit—first featured on SSL's flagship Duality console—adds level-dependent coloration from warm 2nd harmonics to aggressive 3rd harmonics
High-pass filter selectable at 40/80/120 Hz
3-band EQ with mid-frequency Q control and selectable shelf/bell low-frequency mode
Selectable intelligent auto limiting maximizes headroom and avoids ADC clipping
Front-panel XLR-1/4" combo jack for mic, line, or instrument input
Auto-sensing 1/4" Hi-Z input with passive DI-type impedance detection and level matching
Integrated 24-bit / 192 kHz ADC (analog-to-digital converter)
1/4" TRS analog output and S/PDIF digital output
Automatic sample rate synchronization to incoming digital signal
6-segment LED output meter
1/4" insert send and return can be positioned before or after the EQ
Sum switch mixes the insert send with the insert return
Dedicated switches for polarity, -20 dB pad, and phantom power
Connect multiple Alpha Channels via DC sidechain link RCA jacks to achieve the same degree of limiting on the connected units

Solid State Logic XLogic Alpha Channel Specs

Number of Channels1
Inputs1 x XLR-1/4" combo (balanced/unbalanced)
1 x Coaxial S/PDIF
Outputs1 x 1/4" TRS (balanced)
1 x Coaxial S/PDIF
Inserts1 x 1/4" TRS send (balanced)
1 x 1/4" TRS return (balanced)
Link Connectors1 x RCA coaxial link input
1 x RCA coaxial link output
Input ImpedanceXLR Lo-Z: 1 kOhm
XLR Hi-Z: 10 kOhms
1/4" Hi-Z: 1 MOhm
1/4" Insert Return: 10 kOhms
S/PDIF: 75 Ohms
Output Impedance1/4" Output: 40 Ohms
1/4" Insert Send: 40 Ohms
S/PDIF: 75 Ohms
Operating LevelLimiter Switch Out: 24 dBu, unity gain to output
Limiter Switch In: 12 dBu, +12 dB gain to output
Maximum Output+24.3 dBu
Frequency Response10 Hz to 70 kHz (± 0.2 dB)
6 Hz to 250 kHz (-3 dB)
Noise-130.5 dBu (10-Ohm mic input)
-127.5 dBu (150-Ohm mic input)
Dynamic Range105 dB unweighted (minimum mic gain)
76 dB unweighted (maximum mic gain)
Common ModeRejection: 70 dB from 50 Hz to 10 KHz with 1 Vp-p common mode
Maximum Input: 5 Vp-p
SpecialtiesVHD (Variable Harmonic Drive)
-20 dB pad
Polarity switch
6-segment LED output meter
Preamp
Gain RangeInput: +20 to +75 dB
Output: ±20 dB
Channel GainMic Gain to Output: 20 dB minimum, 76 dB maximum
Instrument Gain to Output: 26 dB minimum, 82 dB maximum
DistortionAt +5 dBu: 0.03% (VHD at 0), 0.1% (VHD at 11)
At +10 dBu: 0.05% (VHD at 0), 0.3% (VHD at 11)
At +15 dBu: 0.06% (VHD at 0), 0.5% (VHD at 11)
At +20 dBu: 0.09% (VHD at 0), 2% (VHD at 11)
At +24 dBu: 0.15% (VHD at 0), 5% (VHD at 11)
Phantom Power48 VDC, 47.5 VDC typical
Compressor
Threshold-3 dBFS
Ratio6:1, over-easy
Headroom12 dB minimum, 14 dB typical
Attack Time50 µs
Release Time200 ms
DistortionLimiting: 0.5% maximum
Non-Limiting: 0.001%
Equalizer
Filter TypeHigh-pass filter at 40/80/120 Hz (-3 dB)
Frequency BandsLF: 40 to 600 Hz (shelf), 35 to 500 Hz (bell)
MF: 300 Hz to 5.2 kHz
HF: 1.5 to 22 kHz
BandwidthLF Q: 1.4 (bell)
MF Q: 0.7 to 1.9
HF Q: N/A
Range (Boost/Cut)LF: ± 19 dB (shelf), ± 15 dB (bell)
MF: ± 17 dB
HF: ± 19 dB
Light IndicationEQ in/out status
LF shelf/bell status
Dynamic Range100 dBu
Converter
TypeCS5361 ADC
Resolution24-bit / 192 kHz
Sample RatesNo S/PDIF Input: 44.1 kHz
S/PDIF Input: 32 to 108 kHz
S/PDIFMinimum Input: 200 mVp-p
Maximum Input: 5 Vp-p
Output: 1 Vp-p at 60 Ohms
Dynamic RangeAt 32 kHz: 110.5 dBA (20 kHz measurement bandwidth)
At 48 kHz: 110 dBA (20 kHz measurement bandwidth)
At 96 kHz: 109 dBA (20 kHz measurement bandwidth)
DistortionAt -0.5 dBFS: 0.0006% (20 kHz measurement bandwidth)
At -10 dBFS: 0.0015% (20 kHz measurement bandwidth)
At -20 dBFS: 0.004% (20 kHz measurement bandwidth)
At -30 dBFS: 0.013% (20 kHz measurement bandwidth)
At -40 dBFS: 0.04% (20 kHz measurement bandwidth)
Frequency ResponseAt 48 kHz: 20 Hz to 20 kHz (± 0.1 dB)
At 96 kHz: 20 Hz to 40 kHz (± 0.1 dB)
Output Gain± 19.5 dB
Environmental
Operating Temperature41 to 86°F / 5 to 30°C
Non-Operating Temperature-4 to 122°F / -20 to 50°C
Temperature Gradient (max)59°F / 15°C per hour
Operating Humidity20 to 80%
Non-Operating Humidity5 to 90%
Max Wet Bulb84°F / 29°C non-condensing
Operating Vibration< 0.2 G (3 to 100 Hz)
Non-Operating Vibration< 0.4 G (3 to 100 Hz), power off
Operating Shock< 2 G (10 ms maximum)
Non-Operating Shock< 10 G (10 ms maximum)
Operating Altitude0 to 9842.5' / 0 to 3000 m
Non-Operating Altitude0 to 39,370.1' / 0 to 12,000 m
Physical
Power Consumption< 20 W
Power Requirement100 to 240 VAC, 50 to 60 Hz via IEC320 3-pin connector
Dimensions (W x D x H)19.0 x 9.1 x 1.8" / 48.2 x 23.0 x 4.5 cm (including rack ears, casing only)
17.2 x 9.1 x 1.8" / 43.8 x 23.0 x 4.5 cm (excluding rack ears, casing only)
Weight7 lb / 3 kg
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