Low/Midrange without low-pass

[davidhozic]

Hello,
I'm building a speaker with 2 Visaton's FR 10 Hm's 8ohm (fullrange drivers) and one WS 20e 4ohm (low/midrange).

I've been simplifying the crossover I originally designed and realized it seems to sound better with the ws 20 e running freely and the fr 10 hm's using 2 capacitors in series (I know that doesn't increase capacitance but it makes the graph smoother)

Visaton ws 20 e: WS 20 E - 4 Ohm | Visaton

FR 10 Hm: FR 10 HM - 8 Ohm | Visaton

The amplifier I'm using is a dual chip tpa3116d2 amplifier. The first chip is configured to have 2x 50W outputs (L,R) and and the second has the outputs bridged to form a 100W output.

Boxsim simulation file: Novo.BPJ - Google Drive

 

[Draki]

You can replace the two 10 uF caps with a single one, closest standard value 4.7 or 5.1 uF.

see: Series and Parallel Capacitor Calculator

 

[davidhozic]

You can replace the two 10 uF caps with a single one, closest standard value 4.7 or 5.1 uF.

see: Series and Parallel Capacitor Calculator

Ok, that seems to be good thanks.
But should i be worried about the ws 20 e overheating at higher frequencies?
I mean it's still getting 23 watts at the 20 000 Hz frequency (24volts).

 

[Draki]

Ok, that seems to be good thanks.
But should i be worried about the ws 20 e overheating at higher frequencies?
I mean it's still getting 23 watts at the 20 000 Hz frequency (24volts).

Under normal use, no. And under normal use, it will get nowhere near 23 W.

 

[Zvu]

I'd add a series notch filter at fr10 to remove the resonance bump at around 160Hz.

 

[Draki]

^
That too

 

[Dr John]

I've been simplifying the crossover I originally designed and realized it seems to sound better with the ws 20 e running freely and the fr 10 hm's using 2 capacitors in series

That is ridiculous..

 

[Top Shelf]

Yes,definitely ridiculous. I can't possibly see how davids perception of his music due to his actions would make any sense, and is surely in need of corrective language.🙄

 

[TBTL]

Build it, listen to it and find the strengths and weaknesses of this simple crossover. 🙂 You can always change the crossover later. Take small steps in the learning process to preserve the fun aspect.

 

[davidhozic]

Build it, listen to it and find the strengths and weaknesses of this simple crossover. 🙂 You can always change the crossover later. Take small steps in the learning process to preserve the fun aspect.

Ok thanks, I'll do that.

 

[Dave Bullet]

Are you planning to brace the cabinets?

 

[davidhozic]

Are you planning to brace the cabinets?

The cabinet will be braced with a compartment for electronics(connecting front and back panels) and with the smaller enclosures for the smaller speakers (connecting front with left and right panels).

I'll add extra bracing if it's not going to be enough