Audison SPM4 4-Channel Stereo Passive Mixer Complete your custom premium installation and maintain full electrical signal integrity with the professional car audio connection components of Audison. Manufactured from high-purity electrical materials with weatherized insulation jackets, these support elements guarantee seamless, low-resistance power and audio transfer for long-term system reliability. Product Overview & Core Highlights: SPM4 - STEREO PASSIVE MIXER 4CHStereo 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. 🚨 Critical Performance Specifications: Package Quantity Configuration: Sold Individually (Includes 1 Premium Component Unit) Manufacturer Part Number (MPN): SPM4 Product Category Component: Installation Accessories & Wiring Hardware Fitment Sizing Profile: 8-Inch Layout Fitment Total Package Boxed Shipping Weight: 0.8 lbs
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