SKU: 25627275850

Audison SPM4 - 4 CHANNEL STEREO PASSIVE MIXER

Sale price$152.10 Regular price$169.00
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Audison SPM4 - 4 CHANNEL STEREO PASSIVE MIXERSPM4 provides the ability to mix the midrange and tweeter channels coming from an 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 phase shift. SPM4 is especially recommended for extending the number of inputs of Audison digital processors or amplifiers

SPM4 provides the ability to mix the midrange and tweeter channels coming from an 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° phase shift. SPM4 is especially recommended for extending the number of inputs of Audison digital processors or amplifiers with built-in DSP because they feature a De-equalizer (De-Eq). In this case, any possible non-linear acoustic emissions due to the mixing of the pre-existing filtered channels are duly compensated for.

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 25627275850

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Pam Crosby
Houston, US
★★★★★ 5
Just what I needed!
Color: Black, Size: with Dishcloth Holder
Holds all my sink brushes and scrubbies. I have black accents in my kitchen and goes nicely. I especially love the dish rag bar.
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Reviewed in the United States on April 19, 2026
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Ashley H.
Alexandria, US
★★★★★ 5
Sturdy and sharp
Color: White, Size: 32"W x 6.7"D, 3 Pack
Sturdy, nice finished look. Easy to install and light weight.
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Reviewed in the United States on May 7, 2026
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Ali*GOAT*
Lexington, US
★★★★★ 5
Love love love shelves !
Color: Oak, Size: 32"W x 6.7"D, 3 Pack, Color: Oak, Size: 32"W x 6.7"D, 3 Pack
Packages well, came will all the tools you need for installation highly recommended I would buy again.
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Reviewed in the United States on May 24, 2026
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Lynnette
Lowell, US
★★★★★ 5
Not too thick and durable and sturdy.
Color: Rustic Brown, Size: 24"W x 6.7"D, 3 Pack
Just before I purchased these 3 I bought 2 sets of 2 larger ones. The color is exactly what I was needing. They are packaged together so no scratches or damage. My husband (the installer) says they are easy enough to install. They are perfect for a diy update, durable and hold plenty of weight for their size. Happy happy customer
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Reviewed in the United States on May 8, 2026
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Jose
Alexandria, US
★★★★★ 5
Good quality for the price
Color: Black, Size: 30"W x 6.7"D, 3 Pack, Color: Black, Size: 30"W x 6.7"D, 3 Pack
Seamless floating shelves that look and feel great. I opted to use different drywall anchors since I didn't trust the ones that came with the product. I have bad drywall and no studs where I was mounting so that doesn't fall back onto the product. The shelves are true to size and have held up great. The shelves themselves aren't too heavy so it leaves some room to add weight onto them. I used the 30in long shelf on the left and 24in long shelf on the right to create a nice corner shelf. There are additional screws on the bottom the keep the shelves from moving off the bracket.
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Reviewed in the United States on February 18, 2026

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