SPL Frontliner Channel Strip and Processing Unit

This SPL Frontliner channel strip combines Preamp, De-Esser, Compressor, EQ and Tube Output for a fully featured recording channel. But often the particular stages would also be a great addition to an engineers mixing tools arsenal – and that is why SPL has spent dedicated I/Os to each section of this unit.

Each stage can be used separately and for example be routed via a patchbay to insert the whole toolbox into a studio environment. The Frontliner features a hybrid, Class A preamp design with discrete solid state stage and a tube section with switchable drive settings.

Specifications:

• Maximum input level:
• Microphone input @ 13dB gain: +9dBu
• Line input: +22dBu
• Instrument input: +11,5dBu
• De-Esser input: +21dBu
• Compressor input: +21dBu
• EQ-/Tube Saturation input: +21dBu
• Maximum output level: 21,5dBu
• Microphone input: +13dB to +68dB
• Line input: -20dB to +10dB
• Instrument input: +6dB to +43dB
• Frequency ranges (-3dB):
• Channel strip: 10Hz to 50kHz
• Microphone preamplifier: ‹10Hz to 50kHz
• Line preamplifier: ‹10Hz to 50kHz
• Instrument preamplifier: ‹10Hz to 50kHz
• De-Esser: ‹10Hz to 140kHz
• Compressor: ‹10Hz to 180kHz
• Equalizer/Tube Saturation: ‹10Hz to 60kHz
• Common mode rejection (@ 1kHz, 0dBu input level and unity gain):
• Microphone preamplifier: ›80dB
• Line preamplifier: ›75dB
• Instrument preamplifier: ›75dB
• De-Esser: ›75dB
• Compressor: ›75dB
• Equalizer/Tube Saturation line: ›75dB
• Total harmonic distortion (in %, @ 1kHz, 0dBu input level and unity gain):
• Channel strip: 0,03
• Microphone preamplifier: 0,03
• Line preamplifier: 0,03
• Instrument preamplifier: 0,03
• De-Esser: 0,002
• Compressor: 0,007
• Equalizer/Tube Saturation Line: 0,01
• Signal to noise ratio (A-weighted):
• Microphone preamplifier (VU=30dB): -91,5dB
• Line preamplifier: -94,7dB
• Instrument preamplifier: -95,5dB
• De-Esser: -97dB
• Compressor: -97dB
• Equalizer/Tube Saturation Line: -91dB
• Dynamic range (unweighted):
• Channel strip: 110dB (microphone input › main outputs, @ 30dB)
• Channel strip: 112dB (line input › main outputs)
• Channel strip: 112dB (instrument input › main outputs)
• Microphone preamplifier (@ 30dB): 110dB
• Line preamplifier: 114dB
• Instrument preamplifier: 105dB
• De-Esser: 115dB
• Compressor: 115dB
• Equalizer/Tube Saturation Line: 112dB
• E.I.N. microphone preamplifier: -127dBu (@ 68dB gain, Rs=150Ohms, 20-22kHz)
• Power supply: Two toroidal transformers; Audio transformer: 20VA; Transformer other currents: 15VA
• Fuses: 230V AC, 50Hz: 315mA/120V AC, 60Hz: 630mA
• Voltage selector: 115V/230V
• Power consumption: 29W
• Housing (W x H x D): 482 x 88 x 261mm (Depth with controls and sockets)
• Weight: 5,7kg/ca. 12,57 lbs (w/o converter & I/O transformers)
• Note: 0dBu = 0,775V.