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Electro-Harmonix Synth 9 Synthesizer Machine Reviews

4.5 stars based on 12 customer reviews
Questions about the Electro-Harmonix Synth 9 Synthesizer Machine?

Questions about the Electro-Harmonix Synth 9 Synthesizer Machine?

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  • from Pottsown June 17, 2017Music Background:
    Songwriter/Producer and Music Teacher


    I ve had the Synth 9 for a while. It s fantastic!!! I own all of the EHX "9" pedals and this is my fav by far. I ve "nailed" the intro to "Mr. Crowley," all of Van Halen s "1984" and "Jump." The tracking, especially the "Solo Synth" setting, is excellent. I play Keyboards pretty well but how cool to have the Synth 9 for a gig that requires a Keyboard part

  • from Dallas, Texas June 13, 2017Music Background:
    Musician, composer, and recordist

    Excellent guitar synth pedal by EHX!

    Without needing a special pickup or MIDI guitar, and using only your 1/4-inch guitar cable, this synth rocks. It's always great to have a guitar synth handy for those special songs. Some of the settings work find with hammer ons, pull-offs, and slides (from my experience), but others require meticulous playing of single notes as with a monophonic synth. The "Vibe Synth" is great with it's delayed vibrato and adjustable intensity. A great pedal that will come in very handy in certain situations. The adjustable and mixable dry and synth signals is also great so you can blend the synth sound with your dry then processed guitar signal--like having a synth doubling with your guitar licks (a great sound especially when separately panned left and right in a stereo field)!

  • from Palatine, IL June 6, 2017

    Cool pedal

    Very impressive sounds - you are still using your guitar to play a synth so it is not perfect, but it beats buying a synth and learning to play it and you don't need a midi guitar either. I would recommend to add to almost any pedalboard as it is a very fair price for what you get.

  • from South Carolina April 29, 2017Music Background:
    Semi pro

    EXH Synth 9

    This is the best synth pedal for a bassist. It claims to track to a low A but using my stingray it tracks all the way down to low E. Perfect Oberheim sound. For us old school players the obx sound is just like Mothers Finest funk keyboard without a keyboard player!

  • from Chicago April 15, 2017

    Great sounds from the Synth 9

    I had always been skeptical regarding guitar synth effects, but after seeing the demo I couldn't wait for the release of it. Great sound! Very easy learning curve. Very intuitive functions. I use it to add fullness and subtle background effects over both rhythm as well as lead riffs. I am completely satisfied with it, as are all of my band mates! This opens up many possibilities to expand and explore your music.

  • from Lowell, MA April 9, 2017Music Background:
    35 years producing

    Out of the Park...

    Once again, EH has a home run. The whole "9" series is setting a new standard for guitar synths.
    Not only are the sounds perfect emulations of the synths they represent, but the interaction with the guitar is new and different from a typical GR-55 or similar guitar synth.
    These devices behave differently if you're playing chords from playing single notes. So there's a level of surprise that comes into play as you learn it's response.
    And the subtle variations that "control 1 & 2" offer give each of the 9 voices individuality.
    These things go beyond making sounds to being an inspiration to new compositions...
    All I can say is: "MORE, PLEASE!"

  • from Weeki Wachee, FL April 6, 2017Music Background:
    Former professional, now musical hobbyist

    Amazing, Versatile, Tracks VERY Well, Sounds Great!

    First: Kudos to my Sweetwater rep, Ben Porter!

    The Electro-Harmonix Synth 9 is absolutely amazing. I have been a fan and a customer of Electro-harmonix since the 1970's, and their products have always been fantastic, and great value for the money, too.

    The first thing I did, was plug the Synth 9 into an acoustic guitar with a bridge pickup. It worked, but I was a little disappointed - so, be advised, if you're using the Synth 9 with an acoustic guitar, you may need to add a preamp between it and the acoustic guitar.

    HOWEVER: The next thing I did was plug it into one of my electric guitars. HAPPY, HAPPY, JOY, JOY! This thing tracks perfectly with an electric guitar - especially when, as the instructions say, you turn up the volume on your guitar all the way, and use the bridge pickup. I noticed that the settings of the tone knob on the guitar affects the timbre, just SLIGHTLY, so experiment around with that for an extra fun dimension.

    All of the patches are polyphonic. Patch #4, "Mini Mood," has another oscillator that is monophonic (the level of which is set by CTRL 1) to which a portamento effect can be applied, using CTRL 2 - a GREAT patch for lead playing. All the patches sound great for chords and for soloing, depending on how you set it up.

    The knobs marked "CTRL 1" and "CTRL 2" have different functions, depending upon the patch number you're using. The instructions come with a sheet that has "suggested settings," which are good starting points - on patches where CTRL 1 is acting as a tone / filter cutoff control, I tend to prefer the it set to a less resonant setting - in other words, rotated a bit more counter-clockwise, for a mellower, woodier tone - I just think it sounds a bit more organic, vintage, and analog, but that's a matter of personal preference.

    On the back of the "Suggested Settings" sheet, you'll find a sheet of blank settings diagrams, so you can record your own settings - don't forget to make a ton of copies of the patch sheet, so you can keep your original for future copying.

    The sounds created by the oscillators are big, sophisticated, and convincing, and the filters sound rich, lush, and big. There have been many attempts in the past, by a host of companies, to create guitar synthesis in small pedals, as well as big rack-mounted units - mostly, unsuccessfully, and the few successful attempts have usually resulted in very expensive units. The Synth 9 hits the nail on the head.

    The bottom line is, if you want to add synth sound to your arsenal of sounds, this is a SUPER affordable way to do it.

    Get one of these, and add a Mel 9 (Mellotron emulator, available at Sweetwater), and you'll have most of the sounds of the 1960's, 1970's, and 1980's. (Incidentally, the Mel 9 DOES work well with acoustic guitars, according to some professional reviews.)

    My next purchases, because of how well the Synth 9 works, will be a Mel 9, and an Electro-Harmonix C9 keyboard emulator, both available at Sweetwater.

    Thanks again, Electro-Harmonix, for creating such great products at so affordable of a price point!

  • from Rocky River, OH March 30, 2017Music Background:

    Full of Synth!

    Just got my pedal today and am putting it down for the first time. Need to let the power supply cool off! This thing really is amazing, just need to play with the settings. Haven't hooked it up to my board yet to see how nice it plays with other effects, but that will happen in due time. Already picked up synth lines on Xanadu. Subdivisions is next on a very long list of tunes to try and tackle. Shout out to my rep, Stewart Hisey...He kept me updated every week. I was thinking I wasn't getting this until first week of April, but got my email from Stew that it shipped yesterday and it came today. I shall be immersed in synthful bliss all weekend long! Thanks so much Stewart!!!

  • from Tampa, FL June 15, 2017Music Background:
    Intermediate, with 50 years of experience.

    My personal wayback machine

    The Synth9 joins my B9 and C9 in the keyboard section here at Wino City Studio. This is by far the most fun of the three. Some reviews I read complained that it changes the tone of their guitar. Isn't that the whole point? These are convincing models of the great synths of the past. Pretty easy to dial in tones. It has even prompted me to break out my cheap keyboard as the controller. Lots of fun here, the folks at EHX hit this one out of the park!

  • from Texas April 28, 2017Music Background:
    Bass, Prog and Fusion

    Has potential

    I love the old synth sounds of the 70's and 80's. Being a bassist, there has not been a good alternative to actual keys until now. Overall, this delivers what it preaches, but with limitations. Some of the patches sound very close to one another and it's hard to control on the floor. The uniqueness that analog synths had was partially due do the manual wave controls you had while playing. This pedal is limited and really needs to be up so you can reach over and adjust what you can adjust on the fly. Other than that, it's a step in the right direction. Only reason this did not score higher is the switch. It not the smooth one like most of the pedals these days, it clicks and it went completely out on me 2 weeks after receiving it. Sweetwater customer service is 5 star, so it has been taken care of, but it should have been built better to begin with. Hopefully mine was just a fluke.

  • from California April 28, 2017

    Synth 9

    I love the strings settings
    The rest not so much.
    But it's worth it for the strings
    Best part is the sales team at sweetwater.
    Especially Kurt Cripe, the only person to respond question i had about the EHX Synth 9
    Electro-Harmonix makes good stuff, but louise customer support
    Thanks again Sweetwater

  • from June 3, 2017Music Background:
    Fulltime musician (guitar/bass/drums)

    Wow! Vintage is the key word.

    When the video said "vintage", I underestimated how "vintage" this pedal would sound! It's the "Night Rider" soundtrack!! I may keep it but. man, it will take time and patience to get any usable sounds for today's music. So far I've massaged two sounds out of this thing. $ is a lot for two sounds...oh and violins!

    I'm talking myself into returning it...

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