SPL Audio Big [Studio]

The SPL Audio BiG [Studio] is a professional analog stereo-image processor designed to expand perceived stereo width and introduce additional harmonic richness to audio signals. Building on SPL’s distinctive stereo-processing technology, it uses an analog filter network to manipulate the difference signal between the left and right channels before blending it back into the original signal. A dedicated tube circuit adds controllable harmonic content, helping mixes sound more vivid, detailed and spacious. Designed for recording, mixing and mastering environments, BiG [Studio] combines creative stereo enhancement with intuitive hands-on controls in a 19-inch rackmount format.

Key Features

• Analog Stereo-Image Enhancement: Expands the perceived width and spatial character of stereo mixes using SPL’s specialized analog processing architecture.
• Range Control: Selects the frequency range targeted by the stereo-image processing, allowing the effect to focus on different parts of the audio spectrum.
• Stage Control: Moves the selected frequency range forward or backward within the perceived stereo image for creative spatial shaping.
• Bigness Control: Adjusts the intensity of the stereo-image enhancement, from subtle widening to more pronounced spatial effects.
• Tube Harmonics Processing: Adds controllable harmonic content through an integrated tube circuit to enhance perceived detail, richness and presence.
• Harmonics Switch: Activates the tube-harmonics circuit in the signal path.
• Dedicated Bass Boost: Switchable bass enhancement adds a low-frequency lift after the main BiG processing stage.
• Mono-Compatible Processing: The manufacturer states that the processed signal can be summed to mono without the phase cancellations associated with conventional stereo-widening techniques.
• Balanced Analog Connectivity: Provides electronically balanced XLR and ¼-inch TRS inputs and outputs, with corresponding connectors wired in parallel.
• High-Headroom Analog Design: Operates with an internal ±18 V audio supply, with a dedicated high-voltage supply for the tube circuit.
• Ground-Lift Switch: Helps address ground-loop noise by disconnecting the internal signal ground from the chassis ground.
• Premium Rackmount Construction: Features a 4 mm black anodized aluminum front panel, solid aluminum control knobs and a powder-coated steel enclosure.
• Internal Linear Power Supply: Uses a shielded toroidal transformer with selectable 230 V AC / 50 Hz or 115 V AC / 60 Hz operation.

Technical Specifications

• Device Type: Stereo-image enhancer and tube-harmonics processor
• Analog Inputs: Balanced XLR and ¼-inch TRS
• Analog Outputs: Balanced XLR and ¼-inch TRS
• Maximum Input/Output Level: +22.5 dBu
• Input Impedance: 20 kΩ
• Output Impedance: 112 Ω
• Frequency Response (−3 dB): 10 Hz–200 kHz
• THD + N: 0.0035% at 0 dBu, 10 Hz–22 kHz
• Noise: −97.5 dBu, A-weighted
• Dynamic Range: 120 dB
• Bass Boost Frequency: 42 Hz
• Bass Boost: +2 dB
• Analog Operating Voltage: ±18 V
• Relay and LED Operating Voltage: +12 V
• Tube Anode Voltage: +250 V
• Tube Heater Voltage: +12.6 V
• Power Consumption: Maximum 9.9 VA
• Mains Voltage: Selectable 230 V AC / 50 Hz or 115 V AC / 60 Hz
• Dimensions (W × H × D): 482 × 44 × 210 mm
• Rack Format: 19-inch, 1U
• Unit Weight: 3.85 kg

Official Manufacturer Page

https://spl.audio/en/spl-produkt/big-studio/