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Ma è sicuro che facevo prima con la dima, non li faccio con questa solo perché non ce l' ho e non mi va di comprarla

I lavori procedono sono quasi finite (devo verniciare con un nero testurizzato) all' interno alla fine ho messo un bugnato da 4 cm a celle aperte altrimenti non finivo più......

Finalmente finite



ora un bel rodaggio e finalmente facciamo suonare qualche vinile

le ho verniciate con una vernice bicomponente testurizzata, è fantastica facilissima da dare e copre tantissimo le imperfezioni, sempre se piace l' effetto satinato...

Dragone ha scritto:Ho terminato i crossover e tagliato le tavole, mi sorge un dubbio sui pm 160.... tra le pieghe della sospensione è stato inserito un materiale gommoso gelatinoso appiccicoso... dalle foto in rete parrebbe non esserci.... sono stati modificati recentemente o sono sempre stati così???????

evidentemente hanno ritenuto di dover smorzare una risonanza del bordo, l'effetto dovrebbe essere ben visibile nella risposta e nell'impedenza.
Potrebbe essere quello stretto buco che si nota a 1KHz....

Filippo

lo spero anche io, ho il microfono di misura ma non ho più la scheda audio per cui attualmente non posso fare misure

mm peccato che alcune foto non si vedano.
hai raggiunto i goals che ti prefiggevi?
come suona?

Ogni scarrafone è bello a mamma sua...... Globalmente sono soddisfatto, mi sarei aspettato un basso piu profondo.... Però non mi lamento

Non si torna indietro facilmente dai 15"

... ecco... i bassi sono inferiori ad altri diffusori che avevi
oppure sono proprio carenti in assoluto...

paragonati ad un eminence kappa 15" in 160 litri o ad un delta in 300 (i miei 2 riferimenti autocostruiti), no non riesco più a far venir giù le pareti...

il crossover di serie in ogni caso mette un pò troppo in evidenza la medioalta, secondo me è qui che bisogna intervenire

Hi,i've made recently a pair of loudspeakers,i'm still testing(voicing... etc) ,with the same speakers but different design,from scratch,~108 liters Vb for the woofer and Fb ~34hz,with the midrange under the tweeter(not above),no slanted front,2 ports 80mm on the back,mdf 18,double front and a lot of ranforcements and i tried in the begining the filter from the ciare project and it sounded weird,probably because of the modifications i've made(changes in the phase).The Ft1,between the wf and tw it sounds ok ,but Ft2 need some work.The lower treble is very agressive,shouty and sibilant,expecially on axis!,and in the last days i tested different values for the crossover(by the way,i have the same stiky silicone on the suspension of the midrange,and i think it does what someone told below on this topic).The tw has some minor breakup between 10-15k but it doesn't need modeling,i have bought the speakers in 2009.
I dont know if it will work for you,but if you have the components you could give t a try and let me know if the souns improves
The mid and the tw needs to be wired in the same polarity,and the woofer with revese polarity.The modifications i've made in Ft1 i think are no interest because i have a different volume,but try this for the mid and tw: remove the 3,3R you've put between hp and lp filter,and put: 1,5R before the filter,6,8uf and 0,33mh and on the mid 1,5-2,7R(try) the same,leave in place the hp and for the lp 1,2mh (dcr<0,3ohmi) and a notch ,8,8Uf + 0,12mh.There is no R in the circuit,only the one fron the inductor dcr,and it must be <0,3ohms.The values for the notch must be very precise,try to measure them.I don't think you need some shematics ...You could try to put something under the loudspeaker maybe it sound beter than slated,because i didn't align the speakers on the zero delay plane
The point of crossover remains the same, 2,5k.The mid has a nasty and ugly breakpup,it doesn't dissapear off the radar with second order ,neither third.With second order plus notch the point of crossver is pull down ,under 2k,and if the values for the inductor is lowered to keep the Ft ~2,5k the midrange is shouting
By the way,the woofer needs a lot of damping material(i prefered artificial sheep wool over the foam because it doesn't reduce the spl and bass(i don't know how it's name in italian,it's name acoutilux or dacron on the internet ,or the white one ,poliestere on the ciare catalog)) and you could try to change the electrolitic cap in the hp ,the 47 uf one ,with mkp or mkt,i tried jantzen crosscap,~10E /piece
I came up on this topic and i found it interesting.Sorry i dindn't write in your language ,i use google to translate.I don't do very good neither in english,but i thouht it's better than my native language
Good luck

Hi,i've made recently a pair of loudspeakers,i'm still testing(voicing... etc) ,with the same speakers but different design,from scratch,~108 liters Vb for the woofer and Fb ~34hz,with the midrange under the tweeter(not above),no slanted front,2 ports 80mm on the back,mdf 18,double front and a lot of ranforcements and i tried in the begining the filter from the ciare project and it sounded weird,probably because of the modifications i've made(changes in the phase).The Ft1,between the wf and tw it sounds ok ,but Ft2 need some work.The lower treble is very agressive,shouty and sibilant,expecially on axis!,and in the last days i tested different values for the crossover(by the way,i have the same stiky silicone on the suspension of the midrange,and i think it does what someone told below on this topic).The tw has some minor breakup between 10-15k but it doesn't need modeling,i have bought the speakers in 2009.
I dont know if it will work for you,but if you have the components you could give t a try and let me know if the souns improves
The mid and the tw needs to be wired in the same polarity,and the woofer with revese polarity.The modifications i've made in Ft1 i think are no interest because i have a different volume,but try this for the mid and tw: remove the 3,3R you've put between hp and lp filter,and put: 1,5R before the filter,6,8uf and 0,33mh and on the mid 1,5-2,7R(try) the same,leave in place the hp and for the lp 1,2mh (dcr<0,3ohmi) and a notch ,8,8Uf + 0,12mh.There is no R in the circuit,only the one fron the inductor dcr,and it must be <0,3ohms.The values for the notch must be very precise,try to measure them.I don't think you need some shematics ...You could try to put something under the loudspeaker maybe it sound beter than slated,because i didn't align the speakers on the zero delay plane
The point of crossover remains the same, 2,5k.The mid has a nasty and ugly breakpup,2 twin peaks centered on 4,5 and 5k like in the pdf,some 10db+ and it doesn't dissapear off the radar with second order ,neither third.With second order plus notch the point of crossver is pull down ,under 2k,and if the values for the inductor is lowered to keep the Ft ~2,5k the midrange is shouting
By the way,the woofer needs a lot of damping material(i prefered artificial sheep wool over the foam because it doesn't reduce the spl and bass(i don't know how it's name in italian,it's name acoutilux or dacron on the internet ,or the white one ,poliestere on the ciare catalog)) and you could try to change the electrolitic cap in the hp ,the 47 uf one ,with mkp or mkt,i tried jantzen crosscap,~10E /piece
I came up on this topic and i found it interesting.Sorry i dindn't write in your language ,i use google to translate.I don't do very good neither in english,but i thouht it's better than my native language
Good luck