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#471303 - 06/18/19 08:10 AM
Roland E-X30 Arranger Keyboard
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Senior Member
Registered: 09/21/00
Posts: 43703
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Edited by Dnj (06/18/19 08:19 AM)
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#471337 - 06/18/19 12:38 PM
Re: Roland E-X30 Arranger Keyboard
[Re: Dnj]
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Member
Registered: 11/11/04
Posts: 708
Loc: Russia
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#471339 - 06/18/19 12:59 PM
Re: Roland E-X30 Arranger Keyboard
[Re: Dnj]
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Senior Member
Registered: 12/08/02
Posts: 15576
Loc: Forest Hill, MD USA
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Paul, many, many years ago I discovered that instead of purchasing a battery powered arranger keyboard, the best and least expensive option was to purchase in inexpensive DC/AC inverter. Than you just connect it to your car battery and you can still use your best 110AC powered gear. Thus one is available at Home Depot for $85. Gary
Edited by travlin'easy (06/18/19 01:01 PM)
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)
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#471358 - 06/18/19 02:35 PM
Re: Roland E-X30 Arranger Keyboard
[Re: Dnj]
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Member
Registered: 04/28/06
Posts: 838
Loc: North Texas, USA
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Great tip Gary! I would say this inverter could be used with any 12V DC source. If a car battery is too heavy for your cart, a motorcycle battery should also work--but for a shorter period of time. I once played my BK-7m and Tyros 5 combo off of a computer backup power supply ("UPS") during a power outage. Supposedly my UPS was rated at 450 watts, but that's a peak rating and it only lasted 40 minutes. I would guess that my total current draw was 2 1/2 amps. I feel like they might have lasted longer powered directly from a battery, instead of going through the DC -> AC -> DC process of the UPS and in-line transformers. Obviously you would need the correct voltage and polarity. Also, NEVER try to save, edit, or do firmware updates when using this type of power. If you get a low voltage condition you could scramble the board!
Paul, Roland is my favorite brand. But the Casio CT-X3000 has a much better spec than the little E-X30 discussed here. It has Casio's newest acclaimed AiX sound engine. Rated to run 10 hours on D batteries, and probably more if you play sounds through a JBL Charge 3 or another battery-powered amplifier (and turn off the on-board speakers.)
Kabinopus, I don't know anything about Medeli. But I agree that this board wasn't developed by the Roland I'm familiar with. Even its chord recognition system is Yamaha's, not Roland's excellent Chord Intelligence. As you said, most likely "badge engineering."
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#471364 - 06/18/19 03:45 PM
Re: Roland E-X30 Arranger Keyboard
[Re: Dnj]
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Senior Member
Registered: 12/08/02
Posts: 15576
Loc: Forest Hill, MD USA
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Tony, the average car battery is about 48 ampere hours, which means at maximum load, the inverter draws about 9 amps, which translates to about 5 hours before the car battery would go dead with that amount of drain. Keep in mind, however, that most of us use far less than 1000-watts of power with our full setup. For example, my Bose L1 Compact draws less than 150-watts when cranked up full. A typical mixer draws less than 20-watts. My PSR-S950 only draws 19-watts. So, for me, playing to a crowd of 150 or less ppl, with my full setup, I would draw 169-watts. Therefore, my total drain on the battery would be about 2 amps, which is less than the overhead light in the interior of the car. Yes, most small motorcycle or tractor batteries would do a great job, though I have never tried using them for outdoors. In locations where I was not able to get the car/van close to the venue, I made a 100-foot long DC cable with heavy-duty battery clamps. I connected the inverter to the opposite end and it worked fine for hours on end, no car start problems - ever. I only used that long cable a couple times, though. Most of the outdoor jobs I performed, which amounted to about a dozen a year, the venue supplied me with 110-volt power. For me, the biggest stumbling block of performing outdoors were seeing the keyboard's screen and buttons, which is a problem with every manufacturers keyboard I've ever owned. During the last 10 years of my musical career I insisted on some sort of dark colored canopy or gazebo to set up in. All of the restaurants and catered outdoor jobs complied with my request. Now, when it comes to battery powered gear, most of which is powered with "C" or "D" cell batteries, the life of the batteries has always been quite limited. One of my first Yamaha arranger keyboards had space for 4 D-cell batteries. Usually, the maximum amount of playing time I could count on was about 1-1/2 hours at best before the batteries took a dump. Shortly after that, I purchased an inverter. I also have an inverter on my boat, which runs the TV, Microwave oven and a couple fans. The microwave sucks down a battery pretty quick because it draws 1,100-watts. The TV, however, only draws about 45-watts and it is a 21-inch LED TV. Hope this answers some of your questions, Gary
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)
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#471398 - 06/19/19 07:57 AM
Re: Roland E-X30 Arranger Keyboard
[Re: Uncle Dave]
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Senior Member
Registered: 09/21/00
Posts: 43703
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