SPL Channel One Channel Strip With 24/96 Analog to Digital Converter Module 2376

SPL Channel One Channel Strip With 24/96 Analog to Digital Converter Module 2376

SPL Channel One Channel Strip With 24/96 Analog to Digital Converter Module 2376

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Product Highlights

  • Transistor Tube Preamplifier
  • SPL's De-Esser
  • Compressor/Limiter with Noise Gate
  • Three Band EQ Section
  • Headphone Monitor Section
  • XLR, Line, and Instrument Inputs
  • Insert Send and Returns
  • +48V Phantom Power
  • Phase Reverse Switch and Subsonic Filter
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This item is noncancelable and nonreturnable.

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  • 1Description

The Model 2950 Channel One With 24/96 Analog to Digital Converter Module 2376 from SPL is a single channel strip which includes a number of powerful onboard tools for corrective and creative sound design when recording voices, instruments, and other or analog or digital sources (with optional A/D module). The unit e is built in the tradition of earlier SPL channel strips: the Frontliner, the original Channel One, and the Track One with an updated faceplate design. The device accepts three separate inputs: a balanced XLR-3F microphone input with selectable +48V phantom power, 180&Deg; phase reverse, and 50 Hz subsonic filtering; a 1/4" TRS low impedance line input with a precise balancing stage for connecting to studio grade equipment; and a low-noise high-impedance instrument input that can be easily accessed from the front panel.

The preamplifier stage of the processor features a transistor/12AX7-LPS tube design with a range from +8 dB to +68 dB of mic gain. The line signal gain range reaches from -12 dB to +22 dB, and instrument signals can be amplified between +48 dB and +39 dB.

The first processing module in the signal chain is a De-Esser which allows you to use a single knob for subtle and effective reduction of sibilants in the outgoing signal. The processor uses phase cancellation with the original signal which employ filters that only reduce s-frequencies without interfering with the remainder of the audio spectrum. An integrated auto threshold function allows the processing to occur independently of the input level, even at varying distances from the microphone.

A switchable insert send and return loop button allows for the use of external equipment for effects such as delay or reverb. The presence of the insert loop expands the flexibility of the device to an even wider range of recording applications.

The next processor in the signal chain is a compressor/limiter/noise gate module with a dedicated limit switch, a soft knee compression control knob with a maximum ratio of 1:2.5, a make up gain knob from 0 to +22 dB, and a noise gate that can operate over the signal's complete dynamic range.

The compressor module is followed by a three band EQ and FET distortion module that can be switched to operate before or after the compressor. A low mid frequency control covers a range form 30 to 700 H, a LMF-/+ knob determines the amount of boost or cut at the selected frequency between ±14 dB. Similarly, a mid/high frequency filter can be set between 680 and 15,000 Hz with a controllable gain or boost at this Q frequency within ±12 dB. An AIR Band module uses a coil-capacitor-filter with a center frequency of 17,500 Hz and a maximum possible accentuation of +10 dB or a maximum dampening of -10 dB. The FET distortion allows you to add distortion from 0% up to distinctly perceptible harmonics.

The next module provides an output gain control from -20 dB to +5.5 dB. A mute switch allows you to mute the output signal.

The final two controls include a playback control that regulates the volume of the playback signal that is passed to a musician who is monitoring with the included front panel 1/4" TRS stereo phono jack as well as a volume control for setting the volume of the microphone, instrument, or line signal.

For visual feedback the unit includes LED metering for s-detect, clip, signal presence, tube warm up, gain reduction, and PPM output. The unit can be modified with the installation of Lundahl I/O transformers.

The Pre-Amp Stage
Provides three inputs:
The microphone input features 48V phantom power, phase reverse function and a subsonic filter
The low-impedance Line input has a balancing stage for connecting studio equipment
The low-noise, high-impedance instrument input is accessible on the front panel
Subtly removes offending sibilants by eliminating only the "S" sounding frequencies with phase-cancelling processing technology. The unit's auto-threshold assists in constant processing even with varying microphone distances
Insert (Send / Return)
Allows for insertion of external processors or can be used to record the pure preamplifier signal
Compressor / Limiter
Use's SPL's Double-VCA-Drive circuitry for improved noise and distortion characteristics with control via a single knob and signal-dependent automation and musical results in just about any situation
Noise Gate
Operates in a way such that even reverberation are recognized and not cut off
Three Band EQ
Provides an EQ design 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
Applies distortion to signals
Headphone Monitor Stage
Provides an individual mix for the singer or speaker without the latency problems often associated with digital systems
24 Hz/192 kHz A/D 1090 Module
The Analog/Digital Converter Module 1090 is the digital output section of the Channel 1 with a plug-and-play design for easy installation. It offers an S/P-DIF output with both coaxial and optical connectors in parallel. The heart of the module is a 24-bit converter with a variable sample rate of up to 192 kHz. Quartz oscillators help ensure a clean, low-jitter master clock signal. The internal sample rate can be switched between 44.1, 48, 88.2 and 96 kHz. Other sample rates (32, 176,4 and 192 kHz) can be set by external synchronization. The converter can be synced to other digital devices via a S/PDIF input.

The internal oscillators are automatically disabled when an external clock signal is present to prevent interference. An extremely effective voltage stabilizing circuit ensures that the converter continuously receives sufficient and stable voltage - an important prerequisite for clean, transparent audio. The compact design minimizes the signal path to the converter. Grounding surfaces on both sides of the circuit board effectively reduce interference and ensure optimal separation between analog and digital components.
I/O Customization
Allows for the I/O section to be modified with the installation of Lundahl I/O transformers
In the Box
SPL Channel One Channel Strip With 24/96 Analog to Digital Converter Module 2376
  • Power Cord
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description


    Channels One
    I/O 1x XLR-3F Microphone input
    1x 1/4" TRS Line input
    1x 1/4" TRS instrument input
    1x 1/4" insert return
    2x 1/4" playback inputs (left and right)

    1x 1/4" insert send
    1x 1/4" TRS output
    1x XLR-3M output

    1x RCA SPDIF Input
    1x RCA SPDIF Output
    1x OPtical Output
    Phantom Power +48 V
    Frequency Response Microphone Input: 10 to 100,000 Hz (100,000 Hz = -3 dB)
    Line/Instrument Input: 10 to 180,000 Hz (100,000 Hz = -3 dB)
    Common Mode Rejection Microphone (at -20 dBu) 1 kHz: -80 dB/ 10 kHz: -78 dB
    Line/Instrument (at 0 dBu) 1 kHz: -80 dB/ 10 kHz: -78 dB/line input only
    Total Harmonic Distortion Microphone (A-weighted)
    20 dB: -97.1 dBu
    40 dB: -91.1 dBu
    65 dB: -69.4 dBu

    Line/Instrument (A-weighted)
    5 dB:-99.4 dBu
    20 dB: -97.2 dBu
    42 dB: -79 dBu
    Dynamic Range Microphone: 118 dB
    Line/Instrument: 119 dB
    Input Impedance 20 kilohm
    Instrument: 1 Mohm
    Maximum Input Level +22 dBu
    Instrument +14 dBu
    Output Data Max. Output Level XLR/Jack: +20 dBu
    Output Impedance: 50 Ohm
    Headphone Amplifier Gain, Mic Input and 0 dBu Output Level
    -20 dBu bei 25%
    -10 dBu bei 40%
    -5 dBu bei 55%
    0 dBu bei 70%
    +5 dBu bei 75%
    +10 dBu bei 90%
    +14 dBu bei 100%
    Metering LED ladder, switches with function chosen
    A/D Converter Internal sample rates: 44.1, 48, 88.2, 96 kHz
    External sample rates: 32 kHz, 176,4 kHz and 192 kHz
    Dynamic range: 112 dB (A-weighted)
    THD+N (@-1 dBFS/1 kHz): 0.0007%
    Frequency response (48 kHz): 10 Hz-22kHz, ±0.2 dB
    Jitter (average; 700 Hz-100 kHz): ‹ 300 ps
    Stop band attenuation: -105 dB @48 kHz; -102 dB @96 kHz
    0 dBFS: = +15 dBu
    Power consumption +15 V: max. 115 mA
    Power consumption -15 V: max. 17 mA
    Dimensions (W x H x D): 3.94 x 1.06 x 3" (100 x 27 x 76 mm)
    Weight: 2.39 oz. (68 g)
    Power Supply Toroidal Transformer: 20 VA
    Fuses: 315 mA (230 V/50 Hz)
    630 mA (115 V / 60 Hz)
    Dimensions (WxDxH) Standard EIA 19"
    19.0 x 3.5 x 8.3" (IHE 482 x 88 x 210 mm)
    Weight 9.15 lb (4.15 kg)
    Packaging Info
    Package Weight 14.45 lb
    Box Dimensions (LxWxH) 21.1 x 14.8 x 7.3"


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