That's the problem with MiniDSP - I hoped they changed. Read the "datasheet".
They use a "audiphile DAC with SNR of 128dB" - but that's not what the unit does! It's the maximum spec of the DAC! Older units where WAY worse. At east they have the value "SNR 125dB(A) with DRE enabled" but they don't write any details about DRE?
I found this measurements of the version with the symmetric outputs - which is fine but far from 128dB(A) S/N.
https://www.audiosciencereview.com/forum/index.php?threads/minidsp-flex-review-audio-dsp.30804/
Digital input at 118dB(A), analog at 112dB(A). That's what the Hypex modules can do WITH power amp ;-)
You unsymmetrical version only has digital inputs but will very likely be a few dB worse as the symmetrical output. That's SIGNIFICANT better as their cheaper products!
But why oh why do they need to write "audiphile DAC with SNR of 128dB" when the unit is far from delivering this performance - it's a scam.
They use a "audiphile DAC with SNR of 128dB" - but that's not what the unit does! It's the maximum spec of the DAC! Older units where WAY worse. At east they have the value "SNR 125dB(A) with DRE enabled" but they don't write any details about DRE?
I found this measurements of the version with the symmetric outputs - which is fine but far from 128dB(A) S/N.
https://www.audiosciencereview.com/forum/index.php?threads/minidsp-flex-review-audio-dsp.30804/
Digital input at 118dB(A), analog at 112dB(A). That's what the Hypex modules can do WITH power amp ;-)
You unsymmetrical version only has digital inputs but will very likely be a few dB worse as the symmetrical output. That's SIGNIFICANT better as their cheaper products!
But why oh why do they need to write "audiphile DAC with SNR of 128dB" when the unit is far from delivering this performance - it's a scam.
Now without ranting ... 😏
What you need is ... a concept 🤓
What should the speaker do? How big is your room, how far do you sit, how treated is the room. What sources do you use, what music do you hear. Is there something specific you want to try or test?
With active filtering you can use LF drivers with lower sensitivity so you get a 3 way. But a dedicated sub system is always beneficial when done right.
Just saw it yesterday - 2 of these would be nice: https://sbacoustics.com/product/95-satori-wo24tx-8-textreme/
Not that the LF drivers get to cheap ;-)
What you need is ... a concept 🤓
What should the speaker do? How big is your room, how far do you sit, how treated is the room. What sources do you use, what music do you hear. Is there something specific you want to try or test?
With active filtering you can use LF drivers with lower sensitivity so you get a 3 way. But a dedicated sub system is always beneficial when done right.
Just saw it yesterday - 2 of these would be nice: https://sbacoustics.com/product/95-satori-wo24tx-8-textreme/
Not that the LF drivers get to cheap ;-)
At this point in shifting constraints and rearranged budget with no subs; you might as well look at the OSMC; Volt dome with 12" - passive, tube friendly
https://github.com/mbrennwa/osmcdoc/blob/master/osmc_paper.pdf
https://www.diyaudio.com/community/threads/open-source-monkey-box.327594/
https://github.com/mbrennwa/osmcdoc/blob/master/osmc_paper.pdf
https://www.diyaudio.com/community/threads/open-source-monkey-box.327594/
Yeah, I cant saw that I am a fan of how they are describing their products.
Room is, well. I have attached some pictures. They are not new, but its basically whats the room looks like. I have an open floor plan, but with my music/cinema is not really out in the open. I have curtains to block out light when I am watching movies. In the closet behind the seat I have all my records, cds projector, avr, sub amps and subs. The plan is to build big absorbents in both corners of the closet. Nearfield listening as the speakers are 200-250 cm for listening position.
The purple is just for demonstration purposes, I usually go for a mellow sunrise.
I listen to cds and streaming the most but also a bit of vinyl. The "heart" in the system is an rme adi-2 pro. Right now the RIAA is connected to my amp, but the rme has an AD converter which would let me use the awesome, well I do not know what to call it but, variable loudness. So nice to be able to put a little bass and/or treble boost that reduces as the volume goes up. It has both digital and analog outs.
I listen to all kind of music, I am not picky at all. Today I listened to Run the Jewels and Ibrahim Malouf.
I got a lot of recommendations for the wo24p earlier in the thread, so the textreme version will probably be fantastic. But according to loudspeaker database it wont perform well in a smaller box. I need to check another simulation software.
Room is, well. I have attached some pictures. They are not new, but its basically whats the room looks like. I have an open floor plan, but with my music/cinema is not really out in the open. I have curtains to block out light when I am watching movies. In the closet behind the seat I have all my records, cds projector, avr, sub amps and subs. The plan is to build big absorbents in both corners of the closet. Nearfield listening as the speakers are 200-250 cm for listening position.
The purple is just for demonstration purposes, I usually go for a mellow sunrise.
I listen to cds and streaming the most but also a bit of vinyl. The "heart" in the system is an rme adi-2 pro. Right now the RIAA is connected to my amp, but the rme has an AD converter which would let me use the awesome, well I do not know what to call it but, variable loudness. So nice to be able to put a little bass and/or treble boost that reduces as the volume goes up. It has both digital and analog outs.
I listen to all kind of music, I am not picky at all. Today I listened to Run the Jewels and Ibrahim Malouf.
I got a lot of recommendations for the wo24p earlier in the thread, so the textreme version will probably be fantastic. But according to loudspeaker database it wont perform well in a smaller box. I need to check another simulation software.
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Keep in mind that a woofer such as a WO24P or the newer WO24TX can be put into a sealed box that is much smaller than the "ideal" box volume. With active DSP filters, you can apply a kind of EQ called Linkwitz Transform, and this will create the same effect as having a larger box. In general, you can cut the box volume in half, which raises the raw Qtc from 0.7 to about 0.9. This creates a midbass hump of about 1 dB and pushes the Fc up a bit. Then you apply an EQ to lower the hump and extend the bass. In fact you can mimic any Qtc you want, from 0.5 to 1.0. If you are doing this on your primary bass driver, you have to analyze to make sure you have enough power handling and excursion capability in your woofer. However, if you are using a subwoofer to handle the deep bass anyway, this is much less of a concern.
I am not necessarily advocating that you use a WO24P, but you should not remove it from consideration just because the ideal box size is too big.
j.
I am not necessarily advocating that you use a WO24P, but you should not remove it from consideration just because the ideal box size is too big.
j.
Looks good for a start! 🤓
The RME unit is great - I use the older UFX as center unit in my studio.
200-250cm is definitely not nearfiled! In a normal room reverberation radius is about 1m, in a lightly treated room a little more.
So you could think about some directivity but if the room sounds good it's not needed in this distance.
Do you want to stick with 4 way or do you want to switch to 3 way? With 3way you need a bigger volume, your design idea will not really work. Or only with pretty low volumes.
I don't mind to much to get Qtc up to 0,8 or a little more ... but sleep is better when you stay lower ;-)
The RME unit is great - I use the older UFX as center unit in my studio.
200-250cm is definitely not nearfiled! In a normal room reverberation radius is about 1m, in a lightly treated room a little more.
So you could think about some directivity but if the room sounds good it's not needed in this distance.
Do you want to stick with 4 way or do you want to switch to 3 way? With 3way you need a bigger volume, your design idea will not really work. Or only with pretty low volumes.
I don't mind to much to get Qtc up to 0,8 or a little more ... but sleep is better when you stay lower ;-)
Yes, I have had that thought of the eq in the back of my head. But not really sure how much you could apply. With the variable rme bass boost should protect the woofer from over excursion on louder volumes while having a larger bass boost at low volume.
I don't see a problem with that as both drivers respond well to waveguides. Expensive and probably overkill though. There is the new bigger midrange dome that goes lower so that would probably make more sense to mate with the T34B.
You are welcome, but I would not wait for me unless you like to measure your progress in decades 🙂
I have bought T34A and Purifi Aluminium 6.5" drivers, so that will have to come before any mid dome designs. Baffle render attached below.
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Been playing around a little with my little tube amp today. I have not been hooking it up to my main speakers since I bought it. It's really interesting at what kind of sound level you can achieve with 3 watts with 87db sensitive speakers. Ok, bass heavy hiphop you met distortion with quite low level listening. But when listening to more instrumental music that's all I needed.
But one mayor selling point in choosing the t34b over t25b is 4db higher sensitivity. And the amp is dead silent. I turned the volume all the way up and the sound of my hair scraping against the dome of the tweeter was louder than the hiss. I had such a good time that I started looking for another amp of the same kind 🙂
Anyone interested in buying a pair of qln prestige one and a moon 240i so I can free up som funds? Please...
But one mayor selling point in choosing the t34b over t25b is 4db higher sensitivity. And the amp is dead silent. I turned the volume all the way up and the sound of my hair scraping against the dome of the tweeter was louder than the hiss. I had such a good time that I started looking for another amp of the same kind 🙂
Anyone interested in buying a pair of qln prestige one and a moon 240i so I can free up som funds? Please...