Free 2 Year Warranty from AudisonPrima.co.uk

The SPM4 Stereo passive mixer (unpowered) featuring 4 input channels and 2 output channels, designed for active OEM multi-way systems where each speaker is powered by one specific amplified channel.

SPM4 mixes audio through 4 audio transformers specifically developed to achieve very low distortion and highly linear acoustic response.

SPM4 provides the ability to mix the midrange/woofer and tweeter channels coming from the amplifier and supply one single mid-high channel.

The Ch1(L/R) channels feature two inputs, one features an inverting input compared to Ch2 (L/R) channels; the mixing process often gives better results when one of the two channels undergoes a 180° dephasing.

SPM4 is especially recommended to extend the number of inputs of the Audison digital processors or amplifiers with built-in DSP because they feature a De-equalizer (De-Eq). In that case, any possible non-linear acoustic emissions due to the mixing of the pre-existing filtered channels are duly compensated.

  • Maximum Input Power: 25W (rms) / 50W (peak)
  • Output Gain: -3 dB
  • T.H.D(max input power): %(100Hz) 0.5 / %(1kHz) 0.05 / %(10kHz) 0.05
  • Bandwidth: 15 - 75k Hz (-3dB)
  • Crosstalk: >55dB (10kHz)
  • Input Impedance: 32 Ohms
  • Out Impedance: 10 kOhms
  • Phase inverter: Ch1 (L&R)
  • W x H x D: 103.5 x 36.5 x 86.5 mm
  • Weight: 0.24Kg

SPM4 Tech Sheet

Audison Prima - 4 Channel Stereo Passive Mixer - SPM4

  • Brand: Audison
  • Product Code: SPM4
  • Availability: In Stock
  • £109.99


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Tags: audison, prima, channel, stereo, passive, mixer, spm4, accessories