Casio MT-400v + Hardcase + Speakers!

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via this auction

"Casio MT-400v: RARE Vintage 80's Stereo Analog Filter Synth!
Complete With Original Casio Carrying Case, 2 Speakers & AC Adapter!

LEGENDARY CASIOTONE MT-400v SYNTH in a VERY RARE package rarely found on eBay. This is the wacked-out Casio freak machine with a full analog ADSR resonance filter to alter the keyboard's voice, rhythms, chords, or create weird noise effects. Casio's MT-400v synths are rare enough - but you’ll never find all this in one package!

EFFECTS: Variable-speed Stereo Chorus & Wah, 2 Vibrato styles, lush Sustain & Reverb.

FEATURES: 20 Tones, 12 Rhythms with Fill-in & Synchro start, full Casio Chord accompaniment, 4 Bass & Chord variations per Rhythm – a very versatile synth. Separate volume sliders for main, rhythm, accompaniment & bass for live mixing.

OUTPUTS: RCA stereo jacks, 1/4” headphone jack, external LFO filter control jack, tuning knob. Compact & portable using 6 D batteries.

MT-400v PACKAGE INCLUDES:
• Original RARE Casio 4-section plastic hardshell case for MT-400v
• Casiotone MT-400v analog filter synth mini keyboard w/ effects
• 2 detachable Casio MT-400v “Mickey Mouse” speakers & cables
• Original Casio 7.5V AC power adapter

CONDITION: Case, speakers & adapter: used, super-clean, near-mint condition, no rust. 1 dimpled corner on case (see pix). Keyboard: used, fully functional, minor surface scratches & scuffs (see pix). All original parts intact, including battery cover. Powers up, plays & records fine. Sold AS IS, packed & shipped securely."

Video links and more at the listing.

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Casio Island! (Casio MT-400v Keyboard Demo)

YouTube via peahix

"When I was 14, back in the 80s, I got my first electronic keyboard- a Casio MT-100. I made lots of rudimentary dual cassette deck overdub recordings with it, little sketches of tunes that usually were never developed. I lent my MT-100 to Cindy Lee Berryhill years ago and never got it back, but recently I bought a Casio MT-400v at a garage sale. It has all the same sounds/functions as the MT-100, plus a much needed analog filter section!

This is a new recording of one of my original Casio tunes called "Casio Island" with my MT-400v. I didn't use the analog filter here, because I never had it on the MT-100 back in the day, and I wanted this version to be as close to the original as possible, just with better recording technology.

Recently I used this Casio in a live cover version of Yaz's "Nobody's Diary" with Marie Haddad singing. We're working on a fancy recording of this, which makes lots of use of the analog filter. I'll post a video of that when it's finished.

You can hear the original version of Casio Island in all its tape-hissy glory here."

Nobody's Diary - Yazoo Cover - feat. Marie Haddad & Casio MT-400V

YouTube via peahix

"This is a cover of the Yazoo song "Nobody's Diary." Marie Haddad did the singing, I did the music/production. This was largely an experiment to see what could be done with an old Casio MT-400V, which was used for all the sounds in the backing track. The video consists of a slow pan across the Casio's control panel. This MT-400V has a nice resonant analog filter, which was used heavily here. Some other effects were used on the Casio sounds, most notably a pitch shifter on the bass, to get it down an octave lower.

To hear this without the crappy YouTube mono/compressed audio, visit Marie at http://www.myspace.com/mariehaddad"

Casio MT-400V Filter Tweak

"The Casiotone MT-400V may not be a serious, professional synthesizer, but thanks to its true analog lowpass filter section, it is seriously fun to play with. Having realtime sliders on a "toy" synth is completely unheard of in recent products and rare in 80s-90s products as well.

That said, the MT-400V's filter falls a bit short on the resonance side; it just doesn't make it into the "squinky" realm of self-oscillation when the resonance control is pushed to the max. But, with a simple tweak, it can!"

[link] via best in the comments of this post

Casio MT-400V keyboard demo - "Electric Sunrise"

Alfonse

"Casio Casiotone MT-400V keyboard (1984)

One of Casio's most unique early experiments in the home keyboard arena, at its heart the MT400V has some fairly standard Casiotone rhythms and voices, but someone had the bright idea of giving the user control over the analogue filter envelope (attack, sustain and decay), cutoff and resonance. As well as applying this to the voices, you can also filter the rhythms and auto accompaniment. There's a stereo chorus with adjustable speed which can be switched to act like an LFO modulating the filter, an effect which Casio quite accurately describes as Waw. Add in bass and chord variations and analogue drums and you've got a great little lo-fi synth and groovebox.

All sounds you hear in the track were made using the MT-400V and recorded to a DAW, where compression, EQ, and reverb were added as required. Individual kick and snare drum hits were sampled from the rhythms in order to have more control over levels in the mix, and the Disco, 16 Beat and Bossa Nova patterns were then recreated in the DAW.

You can support the creating of these videos by buying the music at https://alfonse.bandcamp.com

Music: 'Electric Sunrise' (C) Copyright 2020 Alfonse"

Lets get lofi 5 - Casio Mt-68 slightly modified

YouTube via ChrisLody — April 11, 2010 —

"I love this little casio. It was one of the very first keyboards i picked up second hand after i started to learn piano. I've owned about 5 of them in total (one of them was actually an mt-65 but there are a lot round here it would seem)but have only kept the best 2. A lot of the melodic tracks i've written in that time have started from noodling around on this keyboard in tea breaks and on the sofa. I has just enough sound sculpting to be considered a mini home synth or something. It has a couple of enevlope switches, sustain, reverb, vibrato and delayed vibrato which all alter the 20 stock sounds. The drum sounds are pretty nice too.

This one i have modded slightly using mods meant for the mt-400v and ct-410v which shares the same voice chip, though the mt-68 has no active filter. I added a sustain pedal input by connecting a jack and protection diode across pins 44 and 57 which makes it more easily playable. I also chopped the connections to some static filter capacitors which dull some of the sounds. Once disconnected this makes it sound much brighter and much more pleasant to my ear.

I found all the info i needed here: http://weltenschule.de/TableHooters/C...
I remember seeing a full size white version of the mt-68 / mt-65 but didn't buy it and regret it now. I think that had a sustain pedal input as standard. If anyone happens to know the name of the fullsize version i'd like to know. Cheers."

Casio Mt-68 on Ebay

Casio MT-400V - The keyboard with an analog filter control

video upload by Keen On Keys

"The Casio MT-400V, released in 1984, is a small keyboard with 49 mid-sized keys, 8 note polyphony, 12 styles, 20 tones, vibrato, sustain/reverb and stereo chorus. It's main feature is a filter control with ADS and LFO modulation. It uses the NEC D930/931 ICs which were used for many Casio keyboards between 1983 and 1986. There's also a larger version existing, the CT-410V.

Support this channel and buy an album on Bandcamp:
https://keenonkeys.bandcamp.com

Listen to some tracks on Soundcloud:
https://soundcloud.com/user-229361059

0:00 Intro
0:05 Overview
3:36 A Look Inside
7:44 Comparison with MT-65
9:12 Filter Control
11:42 ADS Envelope
14:31 Tone Examples
17:56 Envelope Triggering
20:11 LFO Modulation
21:49 Chord Mode
22:46 Rhythm Examples
25:02 Bass/Chord Examples
28:33 Noise Examples
29:40 Conclusion
30:26 Multitrack Recording"

Casio Casiotone MT-400v Synthesizer

via this auction

"CASIO MT-400v Analog Synthesizer. Crazy little synth this one. And not that easy to come by. Essentially Casio took one of their MT keyboards and added an analog filter section to it. It sounds great. You can patch the tones, the rhythms or the accompaniment section through it or use it to generate a blast of filtered white noise (triggered on every kick drum beat). And you can find lots of information about the synth (along with its larger brother) here"

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Casio Casiotone MT-400V Keyboard w/ Original Speakers

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

Apparently the pictured case doesn't come with it. I don't believe it is the original though. You can see some pics of the MT-400V (and some video demos) with a hard plastic case in the archives.

"Powered right up and all buttons work along with keys. Case does not come with it. Cost to much to ship the original case with it."

It has cutoff and resonance sliders as well as ADS envelop.

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Casio VL-80 Vintage Calculator Synth W/ Vibrato VL-1 VL Tone

YouTube via electricinsect1. via Nusonica.

"After the Casio VL-1, this is by far the best Keyboard/Calculator, hands down. Such a unique little creature. It actually has a real time sequencer for recording and playback. A built in vibrato and 2 full octaves. Fairly loud for its size. Just like any VL, it also has built in melodies, tempo up / down and one key / auto play functions. Very impresive and very rare. A must have for any Calculator or Casio collector. Or if your like me and have a sicknes for unique vintage gear, toys, or what my parents always called......CRAP!"

Also:

CASIO MT-400v & GE TOTE A TUNE Analog Synthesizer - Orgatron


"The TOTE A TUNE is a real unique and warm sounding toy. I recommend this to anyone who likes that FARFISA / VOX / ACETONE sound. Of course, Its a joke to really compare these to compact organs. But made in 1971, I dont think you will be dissapointed with its tone. Also, the CASIO or CASIOTONE MT-400v filter is no way comparable to MOOG, ARP, KORG, ROLAND, ect. but it is nice to have around as a something different. The filter and white noise will please you if you keep this in mind. Was also realesed as the GTR Orgatron. Same thing, Different color."

Casio Casiotone CT-410v & MT-400v Sound-Demo

M. Schmied

"Some Sound's & Rhythm's from the great CASIO CT-410v & CASIO MT-400v Keyboards/Synthesizers."

Casio MT 400V with Analog Filters?

No title link, just a few shots and details pulled from this auction. I've never seen one of these before. Anyone know if it actually does have analog filters and how it sounds?

Gotta love the descriptions you find on the bay. : )

"What a freak machine! Casio sometimes pull gems out of the bag, and this is one of them (model MT 400V) - has all the usual suspects i.e. cheesy presets and bop-a-long drums - where it all goes "ping" is with the awsomely funky analogue filter section at the end - you can send either the drums or the key sounds through this thing which has a swept filter with cutoff e.t.c. plus a bunch of other cool spacewarp additions to texture and shape your sounds to taste (see pictures). Pretty Hot Damn Thrilling ! Adds the cool juice to any track - in excellent working order, missing the tops to 5 of the sliders - doesn`t impair its` workability at all."

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monogrex - casio mt-400v track

Via jon: "The song mongorex was made using nothing but a casio mt-400v to satiaite cravings for one-synth tracks."

On MySpace here.

Casio MT-400v filter Resonance Mod

YouTube via canecreek00 | February 07, 2011 |

"Casio MT-400v filter Resonance Modification"

Casio MT-100 - classic Casiotone with graphic equalizer

video upload by Alfonse

"The Casiotone MT-100 (1985) uses the classic early 80s vowel-consonant synthesis used in the MT-400V, but instead of a low-pass filter, it adds a 5-band graphic equalizer.

I used the graphic EQ on most of the sounds, including the drums. It’s good for getting some extra brightness and clarity in sounds that have a lot of mid-range frequencies by default. The EQ bands start with 350Hz, so unfortunately there’s no potential for manipulating bass frequencies.

Music: 'Armrest Afternoons' (C) Copyright 2024 Alfonse
Download the track here: https://alfonse.bandcamp.com/track/ar...

Store: http://alfonse.bandcamp.com
Website: https://www.alfonsemusic.com
Twitter: http://twitter.com/alfonsemusic
Instagram: http://www.instagram.com/alfonsemusic
Soundcloud: http://www.soundcloud.com/alfonsemusic"

Ill Wind

YouTube Published on Jun 15, 2012 by vcs3dreams

"LZX Monolith / 3 Diy Sequencers / Modified Monotron - modular tron / Casio MT 400V"

The Rat and the Casiotone

video upload by Wein Glas

"Another video in the 'Fuzz Pedals and Synthesizers' series. This time we have STEREO because of the Deucetone Rat with 4 different Rat circuits (Turbo, Vintage, Dirty, Clean) and 2 channels.

And as you can hear at the end of the video in real studio life, it would definitely benefit from a noise gate 🤣.

00:00 Intro
00:10 Clean Casio MT 400v
00:20 The fun starts (Turbo Rat vs. Vintage Rat)
01:45 Vintage Rat vs. Dirty Rat
02:09 Clean Rat vs. Dirty Rat
02:55 This is the end"

Casionova4 - Casio Casiotone MT-400v Audio Track

via Bill Compeau in the comments of this post.

"I just recorded a song with mine that I found in the garbage!!!"

Nice find!

Casio MT-400V w/analog filter, resonance

via this auction

"This was probably the best "Square Wave" Casiotone that they ever offered. It has a real analog filter with cutoff and resonance controls. The chorus is creamy. It also has a white noise generator.
The filter can also be controlled with a breath controller.

If you are handy with a soldering iron, there are some articles on the net where you can hot rod the resonance on this unit."

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Walrus Audio Melee and the Wall of Casio

video upload by Wein Glas

"'Walrus Audio Melee and the Wall of Casio MT 400v' might be a start of a new series of videos featuring Fuzz Pedals and Synths, if you like. But beware: There will be Noise!

The video shows the Walrus Audio Melee together with one of the best tablehooters of all time: The Casiotone MT400v. These two do make a great team. But the Melee doesn't like my gloves. See for yourself at 1:00

0:00 Intro
0:10 Bring the Casiotone
0:20 Enter the world of Fuzz and Reverb
0:57 Infinite Reverb
1:00 Melee doesn't like my gloves
1:58 The Noise Snare
2:29 A closer Look at the Melee
2:55 There will be glorious analog drums and joystick fiddling"