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TOPIC: Using Mic with BK-7m

Using Mic with BK-7m 06 Oct 2015 21:24 #2920

  • toktiny
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Hi there

I have tried to read all the manual but sometimes I need a little extra advice. I am wanting to put a microphone through my BK7M . Which mic is most suitable as I have tried a dynamoc mono mic with no phantom power through the audio input socket and I could not produce sufficient volume.Does the mic have to have phantom power? I do not require top range mic as it is only for personal use.

Many thanks inanticipation

TokTiny
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Using Mic with BK-7m 06 Oct 2015 22:06 #2921

  • dilletant
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No, dynamic mic doesn't need phantom power. Audio input on BK7 has instrumental sensitivity level which is not enough for microphone weak signal. In order to get strong enough signal from the mic you need some kind of mic preamplifier.
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Using Mic with BK-7m 07 Oct 2015 10:58 #2922

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Many thanks for your reply.

I would like to use a mic that does not require any pre-amplification and could be plugged directly into the audio input socket,.if this can be done ? If so what type of mic can do this ?
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Using Mic with BK-7m 07 Oct 2015 16:58 #2923

  • Vladimir B
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(Sorry I accidentally logged in from my old account for the previous post)

There are two types of audio inputs: LINE and MIC. Line input designed for a strong signal from an instrument such as keyboard or some other source such as CD player etc. Mic input designed for use with a microphone or guitar, both of them have weak audio signal. BK7 has only Line Input, so I'm afraid any microphone will be too quiet being connected into BK's audio in.
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Last Edit: 09 Oct 2015 00:17 by Vladimir B.
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Using Mic with BK-7m 07 Oct 2015 20:37 #2924

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Again my thanks for your help on this topic.

From what I can understand in your explanation there is no input on the BK-7m which is capable of accepting any mic directly and providing a workable volume
level. ?

Am I right in assuming that even these mics that have batteries built in to provide phantom power will not work in the audio input socket of the BK-7M ?

If so I guess I can forget about having a bit of fun with my grandchildren in letting them hear a recording of themselves singing along with there grandad providing the music.
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Using Mic with BK-7m 07 Oct 2015 21:27 #2925

  • Kurzweil
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For the grandchildren, any type of mic will do. May I suggest an inexpensive karaoke machine? They come with mics and probably can be had for $20 on CraigsList, as they rank up there with the Home Organ and treadmills for things bought and used once. You can probably use its headphone output to feed a line-level signal into the BK-7m, if you want it to go through your sound system. It will probably have two microphones with it, a CD or DVD player, and a lyrics display. Of course, you will be substituting your own playing for some of that. The kind I have in mind (i.e. really inexpensive) will be used and possibly have a cassette player. You don't care, as long as the mics play through the built-in speaker and it has a headphone or auxiliary output for use with the BK.
ARRANGERS: Roland E-80, G-70, BK-5
ORGANS: Roland Atelier AT-90s, AT-80s, AT-80, AT-70, AT-60r, AT-30, and AT-15. Roland VR-760 combo
WEIGHTED 88s: Yamaha S-90, Kurzweil PC-3x, Casio Privia PX-330
Atlanta, Georgia
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Using Mic with BK-7m 08 Oct 2015 22:17 #2929

  • Diki
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But no, the simple answer is...

No... all microphones have a MUCH lower output than line levels. By an order of several hundred times. So you WILL need either a preamp, or a mixer.

What are you currently playing the BK-7m through? How are you hearing it now?

BTW, don't get confused about phantom power... it is NOT an amplification system, it is a way to power a capacitance charged diaphragm in the mike.

I would suggest a cheap audio mixer. They can be quite decent for less than $40 www.guitarcenter.com/Behringer/Xenyx-502-Mixer.gc etc.

However, you might want to go a hair higher if you want to add reverb to the singing. www.guitarcenter.com/Alesis/MultiMix-4-U...B-Audio-Interface.gc seems a bargain, particularly as it has a USB output, so you could record their efforts to a computer or laptop.
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Using Mic with BK-7m 08 Oct 2015 23:33 #2931

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Sorry I was confusing. I DID say any mic would do but I was only referring to the quality of the mic (grandchildren will be using it). I intended to deal with the level issue by connecting THE ENTIRE KARAOKE unit to the input of the BK-7m, not just the mic(s). The Karaoke unit IS the amplifier and typically includes a reverb or echo knob. Sorry for not being more clear on that.

There are indeed much better ways to go for quality but that did not appear to be a significant constraint in the OP's request. I was thinking in terms of meeting the need at minimal cost. At Christmas new ones can be even more reasonable but today there is one at Walmart with one mic for $60; a second mic for another $9. Amazon has one for $50 and another for $34, all with at least one microphone and an echo effect. Children will find this more than acceptable. In Atlanta today, there are about a half dozen available (used on CraigsList) for $50, $40, even $30 and some have two mics with. They all have RCA outputs and most come with the RCA cable. This can work. That said, a pro setup would be superior, but at a higher cost. Determine the need and then buy accordingly.
ARRANGERS: Roland E-80, G-70, BK-5
ORGANS: Roland Atelier AT-90s, AT-80s, AT-80, AT-70, AT-60r, AT-30, and AT-15. Roland VR-760 combo
WEIGHTED 88s: Yamaha S-90, Kurzweil PC-3x, Casio Privia PX-330
Atlanta, Georgia
Last Edit: 09 Oct 2015 13:13 by Kurzweil.
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Using Mic with BK-7m 09 Oct 2015 10:53 #2932

  • toktiny
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My sincere thanks for the replies I have received to my query regarding using a mic with my BK-7M .

From your replies I have learned that Roland never intended to provide a direct mic facility with the machine. I can now understand that if I wish to achieve what I outlined , that it will have to be done in the manner that you described.

I most appreciate the information that you have provided.me with.

TokTiny
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