robc
17 posts
May 15, 2012
4:58 AM
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Based partly on the great feedback that I had from an earlier post I have decided to buy a Roland Micro Cube amplifier and a Shure SM57 microphone.
Does anyone have any experience of using these two products together? The reason that I ask is that I hear a lot about impedance matching and the use of transformers so I want to check that I can just plug the microphone into the amp without the need for any additional gadgets or gizmos.
Thanks in advance for your help.
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FreeWilly
223 posts
May 15, 2012
5:19 AM
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Sm57 is a low-impedance vocal mic, with a XLR-connector (the three pin-holes). An amp wants a high-impedance plug (like a guitar provides).
An impedance matcher turns the low-Z(impedance) to high-Z. At the same time, it works as an adapter: it takes an XLR cable and has a plug to go in your amp at the other end. You need one. Isn't expensive though!
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MrVerylongusername
2371 posts
May 15, 2012
6:02 AM
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The street cube has an xlr input switchable for mic and line - as well as a hi-z, 1/4" jack input.
The microcube only has the hi-z 1/4" jack input so you'd need a transformer to get the best out of it - it would work without, but it'd be weak and thin sounding.
As Freewilly says they are inexpensive. Good to have in your kit bag anyway.
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AW
122 posts
May 15, 2012
8:24 AM
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As above, you need one, they aren't expensive.
There are at least two versions and I'd recommend you think about spending a little more to get the one that has a bit of flexible wire (2-4 inches) between the ends.
I have the solid stick version and it's just waiting to get hit and snap off the 1/4 plug inside my amp.
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LittleBubba
222 posts
May 15, 2012
8:51 AM
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I'm glad that you used the word "feedback" in your post. :) If you haven't used a micro-cube before, be aware that the "voice selector" knob acts like a gain switch as you move clockwise on the knob, so you have to use your ear to tell when you've gone past the point where the tone is any good & the feedback issues may start. I can't remember the relative positions of "brit" or "blackface", etc., but jus' listen.
Also, you don't have to move the delay knob very far to get a good delay.. like 7:00 or sumpin' (I haven't used my micro-cube in years, so my memory is foggy). But, of course, season to taste; it's your thing.
Last Edited by on May 15, 2012 8:54 AM
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laurent2015
194 posts
May 15, 2012
9:19 AM
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I assume that "Micro cube" isn't the same as "Roland cube 20X" I use this one with a Shure sm57 that's a good mic but supposed to be fitted to sing.
I also use other mics "adapted" for harp playing, but the sound I'm seeking isn't provided by none pattern.
I think that you should try it before buying it, if you look for a "sound".
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robc
18 posts
May 15, 2012
11:16 AM
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This is just what I was looking for. Thanks guys. Gonna take a look on ebay for an impedance matcher...
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Sony Boy III
2 posts
May 23, 2013
1:02 PM
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Buy a Shure 545 dual impendance (it is the old sm57 and is still in production), you will need no adapter, you will get more gain and a better botton end. It was the mic used by Paul Butterfield!
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tookatooka
3315 posts
May 23, 2013
2:29 PM
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I use a 600 ohm dynamic mic with My MicroCube and it's just fine. Loads of volume. I'd consider that to be low impedance.
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lumpy wafflesquirt
717 posts
May 23, 2013
2:45 PM
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@tookatooka likewise with the cube street, in either channel
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"Come on Brackett let's get changed"
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Greg Heumann
2150 posts
May 23, 2013
8:19 PM
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re: "There are at least two versions and I'd recommend you think about spending a little more to get the one that has a bit of flexible wire (2-4 inches) between the ends. I have the solid stick version and it's just waiting to get hit and snap off the 1/4 plug inside my amp."
@AW: The impedance matching transformer with the pigtail is the Audix T-50. Unfortunately in my experience it is a tone sucker - I carried it for a brief time but once I discovered this I discontinued it. I strongly suggest the Shure or Whirlwind (which I carry, cheap and works great) stick type. Then just get a short 1/4" extension cable (1/4" female to 1/4" male) to bring it up to your amp from the floor. Solves the vulnerability problem without compromising tone.
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/Greg
BlowsMeAway Productions
See my Customer Mics album on Facebook
BlueState - my band
Bluestate on iTunes
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