Project: monitor-XL reference values

Helmuth · 07:34 PM

Hi,

I will presentate my 2010 project en big monitor that I named monitor-XL.

After failing to get subbase with a backloaded horn.Project presentation Horn Almighty I became to make a basreflex two way that is flat down to 30Hz that is what I need with popmusic.

The project was realized in two weeks and I spend three-quarter of a year to tweak measurements and listening test to come to a high quality result.

92dB 1W/mtr 25Hz-20kHz

Here they are:

Helmuth · 07:22 PM

Measurements.

Mls pulse and spl measured on 25cm for a large part with in +/- 1.5dB.

Helmuth · 28th July 2011, 07:12 PM

Waterfall measured with HBX V6 and with arta.

Helmuth · 28th July 2011, 07:17 PM

Super linearity and THD figures.

THD bleu second harmonic red third harmonic. Measured at about 1W with my ucd-class-d power amplifier.
up to 1kHz about -40dB= 0,01% and above 1kHz about -60dB=0,0001%.

See THD and step response hole two way system.

Helmuth · 28th July 2011, 07:20 PM

Channel similarity.

See line of left and right channel and grey line minimum phase.

And the other spl measurement the stereo MLS result measured on listening position.

a.wayne · 28th July 2011, 07:22 PM

Quote:

Originally Posted by Helmuth

Hi,

I will presentate my 2010 project en big monitor that I named monitor-XL.

After failing to get subbase with a backloaded horn. I became to make a basreflex two way that is flat down to 30Hz that is what I need with popmusic.

The project was realized in two weeks and I spend three-quarter of a year to tweak measurements and listening test to come to a high quality result.

92dB 1W/mtr 25Hz-20kHz

Here they are:

Hello Helmuth,

Nice looking speaker build, what drivers are you using ?

Helmuth · 28th July 2011, 07:24 PM

Enjoy

I made the enclosure so it can be placed in two positions.

Helmuth · 07:38 PM

Quote:

Hello Helmuth,

Nice looking speaker build, what drivers are you using ?

Monacor sph-265 super midsubwoofer, Horn driver you can use 1" bms upto 30kHz, B&C or RCF.

Helmuth · 28th July 2011, 07:36 PM

Projects 2008.
big bandpass The fatboy

High-end 3 way dáppolito with aluminiumcone

Current project:
Kugelwellen Horn.

DrDyna · 28th July 2011, 07:38 PM

Nice looking speaker, I like the single angled side for horizontal placement, looks pretty cool.

Any chance you could show us what the crossover looks like?

28th July 2011, 07:36 PM	#9
Helmuth diyAudio Member Join Date: Oct 2008 Location: Winterswijk	Projects 2008. big bandpass The fatboy High-end 3 way dáppolito with aluminiumcone Current project: Kugelwellen Horn. __________________ ( (( KUGELWELLE )) ) recent projects :OB-mk1 /fatboy / monitor-xl / Horn-AM / dappolito / td124-mk1-rb301 / Hybrid-pse / Vfet

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28th July 2011, 07:38 PM	#10
DrDyna diyAudio Member Join Date: May 2007 Blog Entries: 3	Nice looking speaker, I like the single angled side for horizontal placement, looks pretty cool. Any chance you could show us what the crossover looks like?

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