{"product_id":"audison-spm4","title":"Audison SPM4 Accessories","description":"\u003ch3\u003eAccessories\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eStereo 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. \u003ca href=\"https:\/\/audison.com\/product\/spm4\/\"\u003eAudison SPM4\u003c\/a\u003e 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. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 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 recomm ended 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.\u003c\/span\u003e\u003c\/p\u003e","brand":"Audison","offers":[{"title":"Default Title","offer_id":42536923201621,"sku":"SPM4","price":249.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/3588\/1045\/files\/SPM4.jpg?v=1779935129","url":"https:\/\/bankstownsound.com.au\/products\/audison-spm4","provider":"Bankstown Sound","version":"1.0","type":"link"}