Akai U400 / U40 Riff-O-Matic Looper/Sampler

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ryba
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Location: Czech Republic

Akai U400 / U40 Riff-O-Matic Looper/Sampler

Post by ryba »

I just found this Thing (It looks like a real fun to have it between soundsource and my SP303) and bought it from Ebay UK (now waiting for shipping).

They are actually dirty cheap now ;)
Big plus for me: No need to delete recorded sample, just record another instead of old one. It has no memory for storing sample (after powering the unit off, it's gone).

Anyone is using one of these?
U400.jpg
U400.jpg (93.62 KiB) Viewed 9375 times
RIFF-O-MATIC U400
Model:Variable Tempo/Constant Pitch Phrase Recorder RIFF-O-MATIC
Sampling Frequency :29.4 kHz
Recording Time:35.7 seconds
Memory Capacity:2 MBytes
Controls:
PLAYBACK TEMPO
NORMAL, 2/3, 1/2
NOTE GRABBER
SOLO/FREEZE
SET LOOP
START/END
VARI PITCH
RECORD
PLAY/STOP
Power Supply:DC 10.5V 150mA
Manual:
https://medias.audiofanzine.com/files/a ... 480323.pdf
U40.jpg
U40.jpg (21.28 KiB) Viewed 9375 times
RIFF-O-MATIC U40
Model:Variable Tempo/Constant Pitch Phrase Recorder RIFF-O-MATIC
Sampling Frequency :20 kHz (Normal), 10 kHz (Record time x2)
Recording Time:13 seconds (Normal), 26 seconds (Record time x2)
Memory Capacity:512 KBytes
Controls:
Output Filter: Off: Full range response Mid: Isolates midrange instruments Low: Isolates bass instruments
Tuning: Transposition: +/-6 semitones Fine Tune: +/-50 cents
Note Grabber: Isolates individual notes Record Modes Normal Continuous Power Requirements: 10.5 V DC
Power Supply:DC 10.5V 150mA
Manual:
http://machines.hyperreal.org/manufactu ... Manual.pdf

I hope I can modify it to change pitch / samplerate continuously by some pot.

It seems they are from around 1999/2000

Here are two Vids:
https://www.youtube.com/watch?v=PaB-_89gMk0
https://www.youtube.com/watch?v=awd1Psma7ts
Last edited by ryba on Thu Feb 22, 2018 2:43 pm, edited 2 times in total.
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disDope Circus
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Joined: Wed Jan 09, 2013 3:19 pm

Re: Akai U400 / U40 Riff-O-Matic Looper/Sampler

Post by disDope Circus »

Looks cool, but now I want one.
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ellaguru
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Location: France-Italy

Re: Akai U400 / U40 Riff-O-Matic Looper/Sampler

Post by ellaguru »

i don't konw for the 400 but on the U40 you have filter and reverse too
U40
[url]https://www.youtube.c%20om/watch?v=YhgTTMq3K38[/url]
U400
https://www.youtube.com/watch?v=PaB-_89gMk0

they both do things...
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ryba
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Posts: 163
Joined: Fri Jan 20, 2017 6:23 pm
Location: Czech Republic

Re: Akai U400 / U40 Riff-O-Matic Looper/Sampler

Post by ryba »

Both can reverse.
U400 has Hi&Lo fiter together:
SOLO band-pass filter isolates the specific guitar sound that you want to transcribe

U40 is mode difficult in navigation (edit matrix), U400 is more straightforward

They Both do things...
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THEGREAT
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Re: Akai U400 / U40 Riff-O-Matic Looper/Sampler

Post by THEGREAT »

seems like a simple but useful never the less
/ Krisso The Great /
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