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Multi-Way Conventional loudspeakers with crossovers

Beginners help with OB speakers
Beginners help with OB speakers
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Old 19th August 2018, 12:37 PM   #1
emilkoz is offline emilkoz
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Default Beginners help with OB speakers

New here and new on speaker builds!

If anyone cares to help out I could need it. Looking to build a pair of OB speakers inspired by PureAudioProjects (I'm getting their woofers).

Looking to use Hypex FusionAmp plate ams with integrated DSP.
Is 250W too much for the woofers? Is 125W more than enough perhaps?

What do I need to get a great system? Prefer bluetooth aptx (and hd).
What's missing?
(How) Can I use the Uniti Atom as a source and connect to the amps?

Thanks for your patience and any help appreciated!

OB.jpg
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Old 20th August 2018, 02:47 AM   #2
mkane77g is offline mkane77g  United States
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Beginners help with OB speakers
^^^^^^I'm using a 175w D Class amp for the woofer. DSP is awesome and lets you experiment for almost nothing.
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Old 20th August 2018, 02:50 AM   #3
mkane77g is offline mkane77g  United States
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Beginners help with OB speakers
Source to DSP input, amps on the output side of DSP
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Old 20th August 2018, 11:57 AM   #4
emilkoz is offline emilkoz
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Thanks mkane77g!

OK but will 125W give me headroom with these woofers or do I have to go with 250W?

Could you please explain/develop? "Source to DSP input, amps on the output side of DSP
Today 02:47 AM"
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Old 20th August 2018, 01:46 PM   #5
mkane77g is offline mkane77g  United States
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Beginners help with OB speakers
Depends where the volume knob is positioned. The source such as tt, disc player, etc. I use a Mini DSP unit.miniDSP in a BOX : miniDSP 2x4 HD
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Old 20th August 2018, 02:21 PM   #6
emilkoz is offline emilkoz
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OK but here I have DSP integrated in the plateamps.

Info on plateamps: https://www.diyclassd.com/img/upload...sionManual.pdf

You have a miniDSP... as a source?

What could I use as a competent source for my setup? Say I mostly want to play via bluetooth aptX. What connections...?

Thanks for your patience!
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Old 20th August 2018, 06:07 PM   #7
mkane77g is offline mkane77g  United States
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Beginners help with OB speakers
My main source is a turntable. I stream once in a while. Can't help with connections as far as Bluetooth is concerned. I'm very simple here and use RCA connections.
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Old 24th September 2018, 04:20 PM   #8
emilkoz is offline emilkoz
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Will the drivers in any way affect the plate amp depending on the position? Please see attached intended placement.
OB amp placement.jpg
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Old 24th September 2018, 06:17 PM   #9
Juhazi is offline Juhazi  Finland
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Plate amps don't have tubes, which might suffer from bass waves - so don't worry!

125 vs. 250W is a small difference. 125W should be enough, but amplifiers are in any case the easiest part of the system and easy to change if necessary. I have ICEpower 125W and 50W amps in my system. An open baffle driver usually is Xmax limited, because it needs lots of eq and there is no backside pressure to conquer.
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Old 26th September 2018, 01:04 PM   #10
emilkoz is offline emilkoz
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Thanks for this Juhazi!

Noted on plate amps.

If 125w "should" be enough I want to be confident not to miss anything and go with 250w (twice the power??). Also prefer not to have to upgrade too soon.

What drivers do you have running on 125 and 50w (interested to hear if it's also OB).

Quote:
Originally Posted by Juhazi View Post
Plate amps don't have tubes, which might suffer from bass waves - so don't worry!

125 vs. 250W is a small difference. 125W should be enough, but amplifiers are in any case the easiest part of the system and easy to change if necessary. I have ICEpower 125W and 50W amps in my system. An open baffle driver usually is Xmax limited, because it needs lots of eq and there is no backside pressure to conquer.
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