The Return of an Analog Synth Classic Lexington KY

In contrast to most second comings of great analog synth names, the SEM is almost identical to the original. In fact, the external cosmetics are changed far more than the innards.

Willis Music Co.
(859) 273-4063
2013 Dellwood Dr
Lexington, KY
Types of Instruments Sold
Acoustic Piano, Digital Piano, Electronic Keyboard, Organs, Band & Orchestral, Drums & Percussion, Sound Reinforcement, Recording Equipment, Guitars & Fretted Instruments, Print Music, DJ Equipment

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Drum Center Of Lexington
(859) 276-1827
431 Southland Dr
Lexington, KY
 
Guitar Center #631
(859) 272-0877
3801 Mall Rd
Lexington, KY
 
Sound House Music
(606) 437-4155
4163 N Mayo Trl
Pikeville, KY
Types of Instruments Sold
Digital Piano, Electronic Keyboard, Drums & Percussion, Sound Reinforcement, Recording Equipment, Guitars & Fretted Instruments, Print Music, DJ Equipment
Store Information
Website Sales: Yes
Lesson Information
Lessons: Yes
Instrument Repair Information
Repairs : Yes

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Krystal Music
(270) 849-2337
4490 New Lebanon Rd
Campbellsville, KY
Types of Instruments Sold
Acoustic Piano, Digital Piano, Electronic Keyboard, Drums & Percussion, Sound Reinforcement, Recording Equipment, Guitars & Fretted Instruments, Print Music

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Doo Wop Shop
(859) 275-1224
443 Southland Dr
Lexington, KY
Types of Instruments Sold
Digital Piano, Electronic Keyboard, Band & Orchestral, Drums & Percussion, Sound Reinforcement, Recording Equipment, Guitars & Fretted Instruments, Print Music, DJ Equipment

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Willcutt Guitar Shoppe
(859) 276-2713
419 Rosemont Gdn
Lexington, KY
 
Abraham Musical Inst
(606) 573-1888
112 S Main St
Harlan, KY
Types of Instruments Sold
Acoustic Piano, Digital Piano, Electronic Keyboard, Organs, Band & Orchestral, Drums & Percussion, Sound Reinforcement, Recording Equipment, Guitars & Fretted Instruments, Print Music

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Melody Music
(606) 679-1088
511 Ogden St
Somerset, KY
Types of Instruments Sold
Acoustic Piano, Digital Piano, Electronic Keyboard, Band & Orchestral, Drums & Percussion, Sound Reinforcement, Guitars & Fretted Instruments, Print Music

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Owensboro Music Center
(270) 684-2156
1303 Breckenridge Street
Owensboro, KY
Types of Instruments Sold
Digital Piano, Electronic Keyboard, Drums & Percussion, Sound Reinforcement, Recording Equipment, Guitars & Fretted Instruments, Print Music, Karaoke Equipment, DJ Equipment
Store Information
Instrument Rental: Yes
Website Sales: Yes
Lesson Information
Lessons: Yes
Clinics: Yes
Instrument Repair Information
Owensboro Music Center services what we sell.Our full time repair staff is ready to help you with any problem that you encounter. We are factory authorized for many brands. Our guitar repair staff can offer you pickup and electronic repair as well as guitar repair and expert guitar set up.
Hours
Owensboro Music Center is open Monday -Friday 9:00am to 6:00pm CST. Saturday Hours are 9:00am - 5:00pm CST. All othere hours by appointment. We are open Sundays in December only 12:00- 5:00pm CST.

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The Return of an Analog Synth Classic

0310 Tom Oberheim SEM

In 1974, Tom Oberheim released the first Synthesizer Expander Module, or SEM. Players loved this easy-to-use, ballsysounding synth, and its unique multimode filter gave it a distinctive sound. The SEM went on to become the basis for some of the world’s first polyphonic synths, such as the Oberheim Two-, Four-, and Eight-Voice, which were essentially multiple SEMs in the same cabinet as a keyboard. Beginning in the late ’70s, these gave way to more compact analog polysynths (the Oberheim OB-Xa behind Paul Shaffer on page 28 among them) but analog tone nuts still hunt for original SEMs. Much to their delight, Tom has now reissued it.

HANDS-ON

  1. You get 33 patch points on 1/8" mini jacks. The SEM is compatible with all one-volt-per-octave analog synths, transforming the SEM into a powerful synth expander module, hence the name!
  2. Large coarse tuning knobs for each oscillator offer a five-octave range; small pots above fine-tune over a range of about a major third.
  3. Unique multimode filter operates in lowpass and highpass modes and is continuously variable between modes with a knob — at 12 o’clock it’s a notch filter. Slide switch activates bandpass mode.
  4. These knobs combine the oscillator waveform and mixer functions found in separate sections on other synths: Center is off, left makes the sawtooth louder, right does the same for the pulse wave.
  5. Slide switch bypasses the VCA. Translation: infinite sustain. This also lets users run external audio inputs through the filter without triggering the envelopes — handy.

THE SIMILARITY STARTS HERE

In contrast to most second comings of great analog synth names, the SEM is almost identical to the original. In fact, the external cosmetics are changed far more than the innards. Tom tells us that just one component was changed from the original design due to lack of availability, and it doesn’t affect the sound. He kept the wedge-shaped beige case, and even the knobs are the same parts as on the originals. Some details have changed: two separate tuning knobs work better than the original’s touchy concentric arrangement. The biggest difference is the 33-jack patch panel. Since “bringing out” patch points is a common mod on originals, Oberheim took it one more step — a large step — providing fantastic flexibility for interfacing with other analog gear. Modular and Moogerfooger maniacs rejoice!

0.0000midipanel MIDI AND THE SEM The SEM’s extensive control voltage I/O is a boon for serious fans of analog, but what if you want to just wail on it from your MIDI keyboard? Tom Oberheim will soon release the SEM MIDI edition. This replaces the SEM’s left-side patch panel with a nicely outfitted MIDI-to-CV converter, and adds rear-panel MIDI jacks. Along with standard note on/off reception, there’s an auxiliary CV that you can control with your choice of velocity, mod wheel, or other continuous controllers. The aux CV destinations include oscillator frequen...

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