Good to finally be here after decades of Audio,I was wondering if i could get some input on making either the Ribbon or the UHF of this schematic play a little louder,they are somewhat laid back as of this set up,Thanks very much for any info,Regards, Michael
you can try removing R1, or bypass with a wire, or parallel with similar resistor
and you could try to 'lift' C2 (break connection)
but it might be you have a phase problem with all those drivers
that could also be the reason
and you could try to 'lift' C2 (break connection)
but it might be you have a phase problem with all those drivers
that could also be the reason
You would simply need to use a lower value for R1 or R2 to bring that driver level up. Dont really see how you could mess with the UHF, changing a cap or coil will mess with the crossover point and phase alignment.
You could even try removing the UHF altogether, and removing the LP side of the HF driver (L2/C2). Without measuring things you are going to have to experiment a lot.
You could even try removing the UHF altogether, and removing the LP side of the HF driver (L2/C2). Without measuring things you are going to have to experiment a lot.
Even though We can not hear above 20 kHz..there are many speakers that use these called "super tweeters" that can go over 30 kHz. I have build a few speakers and I can tell you I am not an expert, but I can say soft done tweeters sound better. Metal dome tweeters tends to sound too bright to me. if you have a good design crossover (I like second order with a Zobel network) you will achieve a nice sound. I can only tell you that building good speakers is way more difficult than you think. most people do not count in one thing that is called "time alignment" with each driver. if you want "sharp" sound, try with metal dome tweeters and use a crossover like second order or first order. if you use a first order you will not protect it too much from low freq. I would strongly suggest you to built a "impedance compensator" for mid/bass drivers. it will keep impedance more stable to amp, will sound better at high volume and it will sound better specially in the midrange area.
As I said before, I am not an expert, but I have done a few homework and research and my final decision was to leave it to the pros. I buy my speakers now lol... right now I have these small tanks The Polk Audio RTi A1. They are small, but can punch big!Polk RT<I>i</I> A1 loudspeaker | Stereophile.com
As I said before, I am not an expert, but I have done a few homework and research and my final decision was to leave it to the pros. I buy my speakers now lol... right now I have these small tanks The Polk Audio RTi A1. They are small, but can punch big!Polk RT<I>i</I> A1 loudspeaker | Stereophile.com
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Thank so much for the replies,These are actually a gorgeous pair of Mistral Bow-A2 Speaker Reviewed These were my last Xmas gift from my wife,I originally wanted the Golden Ears Titon 2,but wanted something unique and very furniture like,to finish off our H/T as i have very little space,aprox 7 inches wide for the left tower next to a monsterous ancient but beautifull 80" crt
.If i could just bring up the brighntess up some,for acoustical,blues/classic rock,i would be happy,Thanks so much again, Regards. Michael
.If i could just bring up the brighntess up some,for acoustical,blues/classic rock,i would be happy,Thanks so much again, Regards. Michael
Michael,
Good quality equalizers can be purchased used for very little money.
They can be inserted on the tape loop or between pre-amp and power amp, and allow you to tailor the sound to whatever you prefer.
I use an Alesis DEQ 30 band stereo EQ in my home stereo, it has 100 presets, so I can switch from "flat response" to various other settings instantly. They are available in 2 and 8 channel, the DEQ230 and DEQ830.
For instance, one setting is for British movies, which I find usually need some midrange boost for me to clearly understand the dialog.
Also use an "old movie" setting that reduces midrange, but boosts the frequencies in the 5000-6000 range , and cuts above, as the output above 6kHz is often just noise.
It also has a built in RTA so you can see the level of each of the 30 frequency bands as music is playing, making it easier to decide what frequencies you want to boost or cut.
Art
Thank you Art, I can't believe i did not think of the equalizer route ! Used them many years ago with incredible results, I guess with the Denon 4520 and XT32,that negated equilizing thoughts,but i will look seriosly at EQ. Thanks Sir
Let me say this, did you try anything of what was told?!
(Before buying an equalizer, go on and spend the money, if/or you have that pre+amp)
No?! great... Let's start again.
What is the result after you shunt R1???? (experiment #1) Keep a series of good quality resistors of small value (< 1R5) for this test in case you need a smaller valu between 1R5 and 0 and the tweeter is to bright.
Another thing, R2 is there just for protection after the PTC fails nothing else. PTC also have small resistance in PTC mode and high resistence in protection mode, you don't need to know this, since you didn't try experiment #1 yet.
Should not be that difficult, after all, you have that 1R5 resistance in the way to play with.Good luck.
(Before buying an equalizer, go on and spend the money, if/or you have that pre+amp)
No?! great... Let's start again.
What is the result after you shunt R1???? (experiment #1) Keep a series of good quality resistors of small value (< 1R5) for this test in case you need a smaller valu between 1R5 and 0 and the tweeter is to bright.
Another thing, R2 is there just for protection after the PTC fails nothing else. PTC also have small resistance in PTC mode and high resistence in protection mode, you don't need to know this, since you didn't try experiment #1 yet.
Should not be that difficult, after all, you have that 1R5 resistance in the way to play with.Good luck.
Hacking your Crossover Network...Hell of a way to adjust your Tone Control.
For those Nuts who support minimalist adjustability of their audio path, get rid of the Volume control, it is ruining your presentation.
The Equalizer is a more acceptable Tone control, I support either approach.
For those Nuts who support minimalist adjustability of their audio path, get rid of the Volume control, it is ruining your presentation.
The Equalizer is a more acceptable Tone control, I support either approach.
Gentlemen;I really appreciate the dedication and passion you have for the personal perfection of sound,One has to sit back and know the mod and certainly the equalizer will definately make some kind of difference,being a GM electrical specialist for 35 years,and being someone who can never let things left alone,I might do the resistor mod first,being it is simple and very easily reverseable.I do know that when i used EQ years back when recording vinyl to cassette-Yeah i know !- I believe it was a 10 band Teac then,It made an incredible difference,as some albums were very flat and some were very dynamic,to record the flat ones through EQ,it was my own mixed perfect reproduction,Same as today,many of my SACD's and HiRez tracks are cut to the mixers' tastes.and do need some kind of EQ. I can say for sure though the EQ. Art and Weltersys suggested, would surely give lots of control everywhere,Ill report back with results,Thank You for the info. Regards, Michael
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R-1 Mod done
R1 was jumpered on opososing ct. board side,This made a significant improvement,subtle, yet,it now sounds like the ribbon disperses very wide now,no hissing or ringing.Just a wider 180 degree dispersion.The snap of snare drums sound way defined as the acoustical notes and decays.Let me know what you think of this Xover. I have used many of RBH sound components before,this set up looks interesting.On ELP's "From The Beginning"HiRez Flac.Is nothing short of stunning now,I can see how when listening to music as we go up in quality of components,musical instruments now become localized,as you can point what each musician is doing instead of a wall of sound.Very happy until i venture back w/EQ ,Thanks so much,Regards, Michael
R1 was jumpered on opososing ct. board side,This made a significant improvement,subtle, yet,it now sounds like the ribbon disperses very wide now,no hissing or ringing.Just a wider 180 degree dispersion.The snap of snare drums sound way defined as the acoustical notes and decays.Let me know what you think of this Xover. I have used many of RBH sound components before,this set up looks interesting.On ELP's "From The Beginning"HiRez Flac.Is nothing short of stunning now,I can see how when listening to music as we go up in quality of components,musical instruments now become localized,as you can point what each musician is doing instead of a wall of sound.Very happy until i venture back w/EQ ,Thanks so much,Regards, Michael
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glad to that ...thanks 🙂
the trap or pitfall now is to think you might be able to improve it even further....dont do it 😀
Michael,
Happy to know you solved your problem. Enjoy your sound with perfection with your diyAudio audio tweaks. 😀 😀
(equalizer will definitely make some kind of difference) Yes, different sources can also make different equalizations necessary, like radio and CD, that can also be easy solved by the playing with your EQ.
I also tried to make a bookshelf speaker make the roll of a nicer round-sound bigger speaker with better LF extension but it only worked in part.
(GM electrical specialist for 35 years)
Sorry, different members have different levels of education, we never know.
The Non-tweaker's Guide To Tweaks | Stereophile.com
Happy to know you solved your problem. Enjoy your sound with perfection with your diyAudio audio tweaks. 😀 😀
(equalizer will definitely make some kind of difference) Yes, different sources can also make different equalizations necessary, like radio and CD, that can also be easy solved by the playing with your EQ.
I also tried to make a bookshelf speaker make the roll of a nicer round-sound bigger speaker with better LF extension but it only worked in part.
(GM electrical specialist for 35 years)
Sorry, different members have different levels of education, we never know.The Non-tweaker's Guide To Tweaks | Stereophile.com
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YES ! I believe im done for a long while, Listening to 2 channel direct stereo,this pair just dissappears and magically allows the instruments to float in air at different layers.ALTHOUGH I am quite interested in that folded heil ribbon Golden Ear uses in their Triton series,would like to have one in my hands to see ! Thanks Gentlemen,Regards, Michael
So you just ran a wire from the + side of R1 to the L2 .084mH Inductor... Is this correct? And that is all that was done?
I am thinking of purchasing these speakers and this is very important to me. Thanks in advance to all that reply... 😀
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