SPL AUDIO Channel One Channel strip with all the trimmings
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Product Overview
The Luxury All-In-One Front End for Surgical Sonic Standards
The SPL Channel One is an elite analog tracking matrix built to bypass the need for complex, messy multi-unit outboard patching. By integrating a discrete-class preamp with specialized dynamic processing and equalization modules into a single 2U chassis, it guarantees first-class, record-ready results from the very first take. This special configuration incorporates premium Lundahl input/output transformers and the AD Converter Module 1090, giving engineers a seamless bridge from warm, classic analog flavor to ultra-precise digital capture up to 192 kHz PCM.
Product Description
Boutique Hybrid Tube Preamp Stage:
The front-end pre-amplification architecture utilizes a premium hybrid tube circuit designed to handle three discrete source types with minimal noise and extreme headroom:
Microphone Input: Outfitted with +48V phantom power, a polarity reversal switch, and a low-frequency (LF) cut filter.
Line Input: Utilizes a highly precise balancing stage to patch external studio outboard gear into the line cleanly.
Instrument Input: A low-noise, high-impedance ($1\text{ M}\Omega$) front-panel DI jack optimized for electric guitars, active basses, and synthesizers.
Revolutionary Phase-Inversion De-Esser:
Unlike conventional compressor-style de-essers that crush the entire upper frequency range and leave vocals sounding dark or muffled, SPL’s celebrated De-Esser module works unobtrusively. It monitors sibilance in a highly narrow band, instantly injecting inverted-phase sibilant frequencies ($S, Z, T$ sounds) back into the signal path. This deletes harsh sibilance dynamically via phase cancellation without coloring the surrounding vocal air. Operating on an Auto-Threshold mode, it tracks consistently even if the artist moves away from the microphone, requiring just a single knob to dial in the perfect amount of S-reduction.
Double-VCA Compressor & Smart Auto-Release Gate:
The dynamics engine is built around SPL's proprietary Double-VCA-Drive circuit, which yields exceptional low-noise and ultra-low-distortion data. This layout delivers deeply musical leveling even under extreme compression settings, easily controlled via a streamlined, fast one-knob interface. It is paired with an automated Noise Gate driven by an Auto-Release Circuit. This smart layout tracks and adjusts to the incoming signal in real time, keeping tail releases completely crackle- and flutter-free so natural vocal decay or lush reverb tails are never chopped off artificially.
Specialized Vocal EQ and FET Character Distortion:
The custom-designed equalizer section is voiced specifically to sculpt vocals, acoustic elements, and electronic instruments. It features a layout consisting of low, mid-high, and dedicated Air-Band filters to inject expensive boutique sheen. Unique to this strip is an integrated Field-Effect Transistor (FET) distortion stage. When pushed, this hardware circuit adds a rich, harmonic-heavy grit and saturation to distortion-prone or flat signals, allowing you to track tracks bursting with vintage analog character.
Latency-Free Onboard Headphone Monitoring:
Setting a new benchmark for boutique channel strips, the Channel One features an onboard Headphone Monitoring section on the front panel. This layout lets singers or voiceover artists blend their live microphone signal directly with the DAW backing track on the hardware chassis. This completely eliminates computer round-trip buffer latency and removes the need to route complicated cue mixes through an external mixing console during recording.
Elite Optional Upgrades Installed ("All the Trimmings"):
Lundahl Input & Output Transformers: Replaces standard electronic balancing circuits with premium iron-core transformers. The 2161 input transformer passively adds up to +14 dB of completely noise-free gain to relieve the microphone preamp. Sonically, these classic transformers round out the bass fundamentals, add punch, and make the upper overtone spectrum sound silky and incredibly present.
AD Converter Module 1090 (24-Bit/192kHz DAC): Adds a high-performance analog-to-digital converter core to the chassis. It delivers a pristine digital stream simultaneously via coaxial and optical S/PDIF outputs. The internal clock switches fluidly between 44.1, 48, 88.2, and 96 kHz, while handling ultra-high-definition rates like 176.4 and 192 kHz seamlessly via an external master synchronization clock.
Flexible Insert I/O: Dedicated Insert Send and Return jacks on the rear panel let you loop external processors (like hardware reverbs or analog delays) cleanly into the chain right after the preamplifier block.
Key Features
Complete "All the Trimmings" Signal Chain: Combines a hybrid tube preamp, dynamic de-esser, double-VCA compressor, auto-gate, 3-band EQ, and FET overdrive in a 2U bay.
Premium Lundahl Transformers Fitted: Passive iron-core transformers on inputs and outputs smooth out transients, thicken low-end punch, and add silky top-end air.
Integrated 24-Bit AD Converter Module: High-resolution digital module yields jitter-free coaxial and optical S/PDIF outputs up to 192 kHz.
Flutter-Free Auto-Release Gate: Advanced noise gate senses decay characteristics dynamically, protecting trailing room ambiance and reverb tails from clipping.
Character-Rich FET Distortion Stage: Built-in field-effect transistor circuit adds harmonic saturation and analog tape grit to instruments and vocals.
Zero-Latency Headphone Cue Mixer: Dedicated front-panel headphone amp allows performers to monitor themselves perfectly against DAW tracks with zero lag.
