Measuring speakers for numpties

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Latteman
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Re: Measuring speakers for numpties

Unread post by Latteman » Tue Oct 08, 2019 9:52 am

Vinyl-ant wrote:
Mon Oct 07, 2019 1:44 pm
For pretty rough measurements you can use a phone app called spectrum analyser,
Quite a few on App Store- any further recommendations- ru apple or android
I’m apple
RIP Doc
Analogue- Lenco GL59, 10” ARB Carbon arm Grado Reference Prestige 1 MI
Nva Phono 1 (external psu)
Digital Sources- Denon CEOL Piccolo & Fiio x1ii
Amplification-NVA P20, A20 (x2), A60
Speakers- Diy BBCubes on Nva Stands;
Ls6, Ls5; SSP
Mini BMU

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Lindsayt
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Re: Measuring speakers for numpties

Unread post by Lindsayt » Tue Oct 08, 2019 10:00 am

karatestu wrote:
Tue Oct 08, 2019 5:56 am
Hey Lindsay. All i was going to do was a simple frequency response. Turns out it's not that simple after all. Read a Tony L thread of 11 pages on pfm and it put me right off.
Could you invite someone round to your house that has done measurements before and get them to do it?

If not, and if you don't fancy measuring it yourself - which is entirely understandable - then you can always continue to "measure" your system with your ears.

Bencat57
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Re: Measuring speakers for numpties

Unread post by Bencat57 » Tue Oct 08, 2019 12:40 pm

All I can say is if you have as you say a Lap Top , REW Software (Free prvided you sign up tp the AV Forum) and the MiniDSP Mic 1 then you can take as good a measurement with those as you would ever need .

Simple mearsuremnet would be a full frequency sweep with the Mic on a stand one meter from one of your speakers with Mic located inline with your Mid Range unit if you have a three way or between your treble and bass driver if not .

You can then just push the button and it will make a reading . Being able to then read and understand that reading is another matter altogether and it would be best if you could vist someone who has done this type of thing before and go over it with them or if they could come to you .

Vinyl-ant
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Re: Measuring speakers for numpties

Unread post by Vinyl-ant » Tue Oct 08, 2019 1:52 pm

I'm using a huawei android phone, no other recommendations tbh, that app was the one I got on with best
BTE designs type 2 lenco, Audio Technica AT1100 dynavector dv20a2 (his), JVC QL-Y5F HANA sl (hers)
Benedict audio hothead mm phono stage with borrowed LDA ha1 mc stepup
BTE designs type 1 custom Khozmo shunt build passive pre
PASS F5 dual mono Power amp
modified Philips cd371
Squeezebox classic
fane 15" sb speakers
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karatestu
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Re: Measuring speakers for numpties

Unread post by karatestu » Tue Oct 08, 2019 4:19 pm

Bencat57 wrote:
Tue Oct 08, 2019 12:40 pm
All I can say is if you have as you say a Lap Top , REW Software (Free prvided you sign up tp the AV Forum) and the MiniDSP Mic 1 then you can take as good a measurement with those as you would ever need .

Simple mearsuremnet would be a full frequency sweep with the Mic on a stand one meter from one of your speakers with Mic located inline with your Mid Range unit if you have a three way or between your treble and bass driver if not .

You can then just push the button and it will make a reading . Being able to then read and understand that reading is another matter altogether and it would be best if you could vist someone who has done this type of thing before and go over it with them or if they could come to you .
Thanks for the advice Ben. My speakers are 3 way semi omni with only the tweeter firing forwards at the moment. Where to put the mic ? I haven't a clue apart from putting in in the listening position.
DIY inspired by Richard "The Doc" Dunn RIP

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Re: Measuring speakers for numpties

Unread post by Alfi » Tue Oct 08, 2019 4:41 pm

Jeez Stu. :naughty: This has prompted me out of my lurking cave. Look at your signature - trust your ears, that's all ya need man.

Alfi.
Heavily modified suspended sub-chassis turntable, Sole VIII sub-chassis, "In Sole" advanced polymer suspension, Ai bearing, PU7, DV20X2, Norton Airpower clone. Technics SL110A, AT 1005, Soundsmith Denon DL103. NVA BMU, NVA Phono 2 MC (2 power supplies), NVA P50 SA, NVA A40 Mk1 power amps, custom birch ply Allison 6/NVA Cube 1 clones, NVA TIS mk2 , SSC, LS6.

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karatestu
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Re: Measuring speakers for numpties

Unread post by karatestu » Tue Oct 08, 2019 5:08 pm

Alfi wrote:
Tue Oct 08, 2019 4:41 pm
Jeez Stu. :naughty: This has prompted me out of my lurking cave. Look at your signature - trust your ears, that's all ya need man.

Alfi.
:oops: :oops: :oops: :oops: I have already seen the error of my ways. If nothing else this thread has got you out of retirement :grin: Don't worry I won't be doing it. I realised I have got much better things to be doing like building another amp and doing more speaker prototypes.

Stu
DIY inspired by Richard "The Doc" Dunn RIP

Daniel Quinn
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Re: Measuring speakers for numpties

Unread post by Daniel Quinn » Tue Oct 08, 2019 5:41 pm

The frequency response is a must measurement for speaker builders, to augment your ears

Alfi
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Re: Measuring speakers for numpties

Unread post by Alfi » Tue Oct 08, 2019 5:59 pm

karatestu wrote:
Tue Oct 08, 2019 5:08 pm

:oops: :oops: :oops: :oops: I have already seen the error of my ways. If nothing else this thread has got you out of retirement :grin: Don't worry I won't be doing it. I realised I have got much better things to be doing like building another amp and doing more speaker prototypes.

Stu
That's good to hear Stu!
ATB
Alfi.
Daniel Quinn wrote:
Tue Oct 08, 2019 5:41 pm
The frequency response is a must measurement for speaker builders, to augment your ears
and what will that tell you that's actually meaningful to you?

Did you do it with your Doc modded AP2's and what did you learn from the exercise that you didn't know before by just listening?
Heavily modified suspended sub-chassis turntable, Sole VIII sub-chassis, "In Sole" advanced polymer suspension, Ai bearing, PU7, DV20X2, Norton Airpower clone. Technics SL110A, AT 1005, Soundsmith Denon DL103. NVA BMU, NVA Phono 2 MC (2 power supplies), NVA P50 SA, NVA A40 Mk1 power amps, custom birch ply Allison 6/NVA Cube 1 clones, NVA TIS mk2 , SSC, LS6.

Daniel Quinn
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Re: Measuring speakers for numpties

Unread post by Daniel Quinn » Tue Oct 08, 2019 6:31 pm

I done it with every pair I have, particularly those which I have done the doping

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