Signal Processors

The HH Electronics SP48 is a fully featured 4-IN/8-OUT digital speaker management system. Featuring 4 analog inputs and 8 analog outputs, each managed by a powerful DSP Engine. Each input channel provides 30 PEQ, gain control, noise gate, RMS compressor and configurable delay. Each output offers up to 7 PEQ and crossover filters. Each output path also features peak limiter, HP/LP Filters, and driver alignment delay. Easy setup is assured with intuitive front panel controls and an interactive LCD display for local setup, or a dedicated PC control interface for remote monitoring and configuration via USB or RS485 and dedicated control software. The SP48 supports a full matrix mixing mode where inputs may be routed/mixed in any ratio to any output. The SP48 loudspeaker processor is the perfect counterpart to any HH speaker system, suitable in an array of applications, such as live sound, indoor/outdoor events, public address, theatrical performance, and touring. It also comes with expertly created audio pre-sets for use with the TNA line array system, for easy setup straight out of the box.


  • Inputs
    Four Electronically Balanced XLR Inputs. RS485 RJ45 In
  • Outputs
    Eight Electronically Balanced XLR Outputs. RS485 RJ45 Out
  • Frequency Response
    20Hz-20kHz; -0.5dBy at 20Hz and 20kHz
  • S/N
  • THD+N
    0.001% at 1kHz 0dBu
  • DSP
    420ms Delay per input channel. 129ms per output channel.
  • Dimensions
    44 x 483 x 229mm, 1.7″ x 19″ x 9″
  • Weight
    3.5Kg, 7.7 lbs
  • Carton Dimensions (Hwd)
    9 x 53 x 30CM, 3.5″ x 20.9″ x 11.8″ , 0.014 M3
  • Packed Weight
    4.5Kg, 9.9 lbs
  • System Type
    Loudspeaker Management System
  • Power Consumption
  • Power Supply
    Universal voltage 100V-240V~ 50/60Hz
  • Other Controls
    Comprehensive front panel controls with quick mute functionality. Ground lift switches for signal and RS485/USB. USB interface.
  • AD-DA Converters
    24bit, 48KHz
  • Presets
    24 user presets
  • Filter Type
    Bell, Hi/Lo Shelving, HP/LP Bandpass, Notch, All Pass
  • Power Connector
    Removable IEC Power Cord C14
  • Filter Type
    Crossover. Butterworth 6/12/18/24/36/48 dB per octave. Bessel 12/24 dB per octave. Linkwitz-Riley 12/24/36/48 dB per octave

Since it’s conception in 1968, HH have delivered unparalleled engineering techniques with every product developed. The Tensor range establishes itself ahead of market leaders with it’s goal being to deliver unrivaled performance tailored towards live sound reinforcement.
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