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Les S. finally got a narrow panel cabinet [message #10931] Sat, 25 April 2009 23:27 Go to next message
LesS is currently offline  LesS
Messages: 477
Registered: December 2002
Senior Member
Here is a Motion Sound Leslie rotary horn assembly in a red Kustom 100 cabinet. The speaker cabinet is a red Kustom 1967 narrow panel 2x15 - I changed the speaker baffle to a 4x10. The drivers are from a 1990 Kustom 4x10 Jensen bass cabinet. The Jensen tens are bass drivers but to me it seems that the tonal balance is more like lead guitar speakers. Since I play keyboards this is OK with me. The full range efficiency is somewhere around 108 dB ! - easily outdoing my other cabinets. On deep bass the efficiency is around 102 dB. This is my first narrow panel cabinet and the oldest Kustom cabinet I have ever owned. When I removed the back, these became my "Favorite Kustom Cabinet Ever" since they do not have the black sticky tar sealant for the back. (The baffle does have the tar.) This is the cabinet that was attacked by a cat - I am about 90% done with it.
http://www.flickr.com/photos/34116766@N07/3475233302/

http://www.flickr.com/photos/34116766@N07/3481930182/

Here is a charcoal K100-1 with a 2x12 with two 10 inch Eminence Basslite speakers. This is a bass cab with an SPL of 99 dB. It has better deep bass than my 4x10. The Basslites are a modern bass speaker with low FS and excellent xmas (how far the cone moves)for better bass.
http://www.flickr.com/photos/34116766@N07/3475235588/in/phot ostream/

Here is a blue K100-1 with a 2x12 with two 10 inch Bugera aluminum cone speakers. Another website always says how bad they are so I wanted to try them out. So far so good! Maybe you can guess my next move.
http://www.flickr.com/photos/34116766@N07/3474427627/

http://www.flickr.com/photos/34116766@N07/3481119023/

[Updated on: Sun, 17 May 2009 17:22]

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Re: Les S. finally got a narrow panel cabinet [message #10933 is a reply to message #10931] Sun, 26 April 2009 10:22 Go to previous messageGo to next message
rodak
Messages: 511
Registered: October 2001
Location: Georgia
Senior Member
Wow, a motion-sound leslie built into a Kustom head cabinet, what a great idea!(Just the thing for pairing with a Kombo organ). Was it difficult fitting it in there? I'm not terribly familiar with the motion-sound stuff - what are all those knobs on the front for?



www.combo-organ.com
Re: Les S. finally got a narrow panel cabinet [message #10944 is a reply to message #10933] Mon, 27 April 2009 16:37 Go to previous messageGo to next message
LesS is currently offline  LesS
Messages: 477
Registered: December 2002
Senior Member
It was pretty easy. The motion Sound KBR-M is sort of deep so it sticks out about 8 inches from the back of the K100 cabinet - that part is covered with plexiglass so you can watch the horn spin.

Basically, six knobs are for the rotary section, and six knobs (vol, bass, treble) are the two non-rotary channels.
Rotary Channel
1)Pre-Gain sets the amount of drive to the 12AX7 tube for overdrive/distortion.
2) Post-gain volume
3) Contour controls high frequency cut, adjustable from 4 kHz to 7 kHz. (3 dB Oct.)
The Rotary Channel Crossover is 800 Hz. The low rotor simulator is mixed into the Hi-Fidelity power amplifier. The Rotary horn has a built in microphone with level adjustment to the XLR line output.
4) Low rotor volume adjusts the balance between the horn and low rotor simulator.
5) The bass control EQ is at 100 Hz.
6) Low Rotor effect adjusts the level of the simulator.
Speed control is via footswitch -Fast, slow, and stop.
Non- rotary (HI Fidelity) Channels
The Monitor channel (1) has one input, volume bass and treble controls. The rear panel has a switch to disconnect the XRL line out signal for Vocal monitor.
The Normal channel (2) has one input with volume, bass, and treble controls.
The rear XLR line output contains the rotary channel's horn microphone and low rotor simulator along with the Monitor channel (if the line out switch is on) and the normal channel.
The rotary horn amplifier = 45 watts RMS
Hi-Fidelity/low rotor simulator amplifier = 130 watts RMS.
This model is from 1999 and I have to give Motion Sound a lot of credit for how well this unit works and its complexity – it contains a real horn and motor, motor controller, two amplifiers, a tube preamp, 3 channel preamp/mixer, active crossover, low rotor simulator, microphone, and XLR-out.
Re: Les S. finally got a narrow panel cabinet [message #10954 is a reply to message #10944] Tue, 28 April 2009 10:34 Go to previous message
LesS is currently offline  LesS
Messages: 477
Registered: December 2002
Senior Member
I added two more pictures:

(Motion Sound Leslie rotary horn assembly in a red Kustom 100 cabinet; speaker cabinet is a red Kustom 1967 narrow panel 2x15 - I changed the speaker baffle to a 4x10)
http://www.flickr.com/photos/34116766@N07/3481930182/

(blue K100-1 with a 2x12 with two 10 inch Bugera aluminum cone speakers)
http://www.flickr.com/photos/34116766@N07/3481119023/

[Updated on: Tue, 28 April 2009 10:35]

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