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Kahayan 8x4 MIDI Amp/Speaker Selector

8x4 MIDI Amp/Speaker Selector with Instrument Input, Tuner Output, and MIDI In/Thru
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Item ID: 8x4AmpMIDI
Kahayan 8x4 MIDI Amp/Speaker Selector
Price:$1,299 and 00 cents
Special Financing - Ends Jun 30, 2026. $28/month with 48 month financing*

Backordered - More On The Way!

This item requires extra delivery time from Kahayan. Order today to reserve yours now, risk-free, or contact us for more information. Estimated June 2026.

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Kahayan 8x4 MIDI Amp/Speaker Selector
Backordered - More On The Way! Notify me
Price:$1,299 and 00 cents
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This article was Written By

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Eight Amps. Four Speakers. Endless Creativity.

With the Kahayan 8x4 MIDI Amp/Speaker Selector, switching between amps and speakers on the fly is as easy as pushing a button. With the 8x4 Selector, you get eight separate amp inputs with matching outputs for patching in up to eight different units from a single piece of gear. Even better, you also have a quartet of jack outputs for running your signal to four separate speakers. Once everything is wired in, the 8x4 Selector’s straightforward front panel makes it a breeze to switch pathways on the fly, with clearly labeled buttons to ensure you always know where your sound is coming from. Kahayan sweetened the pot even more by including MIDI In/Thru options, perfect for musicians with MIDI pedalboards and controllers who don’t want to sacrifice the convenience of their setups. Rounding out this unit is an amp bus insert for adding in attenuators or speaker simulators, as well as a tuner output with a silent operation option for connecting your favorite tuners. Whether in the studio or onstage, finding that ideal gear combination is critical — add the Kahayan 8x4 MIDI Amp/Speaker Selector to your arsenal and never settle for less than the perfect amp and speaker combos!

The convenience of onboard MIDI control

Kahayan has made their renowned 8x4 Selector even better with the addition of MIDI In/Thru options. This system interfaces perfectly with MIDI controllers and pedalboards, allowing for easy switching between all of the 8x4 Selector's amps and speakers with the tap of a foot or finger on any Bluetooth-equipped device or MIDI interface. Many of Sweetwater’s modern gear enthusiasts love this feature when adding the 8x4 Selector to their rigs — it integrates seamlessly with setups while adding incredible convenience and complete control.

Kahayan 8x4 MIDI Amp/Speaker Selector Features:

  • 8x4 MIDI amp and speaker selector for combining up to 8 amps and 4 speakers
  • Instrument input, tuner output with muting feature, 8 amp inputs and outputs, and 4 outputs to speakers give you more than enough options for patching in your gear
  • MIDI In/Thru for interfacing with your favorite MIDI controllers and pedalboards
  • Amp bus insert for inserting attenuators and speaker sims
  • Max amplifier power: 170W
  • Phantom load: 8ohms

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Tech Specs

  • Type: MIDI Amp/Speaker Selector
  • Inputs: 1 x 1/4" (instrument), 8 x 1/4" (amp)
  • Outputs: 1 x 1/4" (tuner), 8 x 1/4" (amp), 4 x 1/4" (speaker)
  • Other I/O: 2 x 1/4" (send, return)
  • MIDI I/O: In/Thru
  • Power Source: Standard IEC power cable
  • Power Usage: 6W
  • Height: 1.65"
  • Width: 17.12"
  • Depth: 11.22"
  • Weight: 5.51 lbs.
  • Manufacturer Part Number: MIDI 8x4 Selector

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Reviews

2022 Review Kahayan 8x4 MIDI Amp/Speaker Selector
Built solid.
Works great.
This helped tie all my amps and speakers together.
if your a amp/speaker collector, this unit is for you.
Big Thanks to Dan Robinson for recommending this!
Studio magic
This seemed to good to be true, the ability to seamlessly switch between 8 amps and 4 cabs (or attenuators) in an instant, while safely muting the unused amps. It really delivers and I couldn't be happier. I run my JCM800, Mesa mkIII, Super reverb, Ceriatone OTS50, Sunn Model T through this thing with no ground hum or noise. I'm able to track guitars in my studio without wasting time reamping, like I used to. Such a time-saver and just plain fun jamming and switching out amps in real time. Price of admission is a bit high, but this is a high quality piece that I have no worries about damaging my vintage and newer amps. I've opened up the device and checked out the build. Its made of top quality parts and has load resistors as well as quality relays. Do yourself a favor and snag one for your studio.
Music background: Musician, Amp builder, Engineer
A must if you have multiple Amp's.
This thing is great.
I now find myself using all my amp's and cab's again. At times I wouldn't because it was too much of a pain to unplug and re-plug in the different amp's and cab's. Now that is not a problem. I just push a button and I'm using a different amp or cab.
Be careful to hook them up correctly and power items on correctly.
revisited 2023 Kahayan 8x4 MIDI Amp/Speaker Selector review
Its fantastic idea of what it should be able to do, but it seems to have issues
The first unit I got, the screws were not flush or counter sunk into the unit, I suspect bad machining of the screws female seat.
I am now going on my 3rd unit, as I was setting it all up the Amplifier channel 3 did not work at all.
I am going to chat with my bud Dan at sweetwater, and see what options we have. Fix, Replace, or go with another brand.
Bad
I had high hopes for this but in the end I think it's just a bad design. The initial impression wasn't great. The enclosure is flimsy and countersunk screws were sticking up all over the top and bottom, scratching anything it was set on. The real problem with it was, whenever I turned the gain or volume up on an amp, it would go into squealing oscillations. This happened even with only a single amp and cab hooked up. The reason I gave it 1 star is because I don't think I got a defective one. If you do a web search you'll find other people with the same problem.
Music background: Pedal manufacturer