Hello guys.
This week I finished my amplifier. The basic schematic is attached.
I built a stereo amp with two parallel monoblocks and one power transformer.
The amp is running very well.
Now, the target find the correct loudspeakers to the accoustic box run well.
I have two ducted accoustic (three ways) box cygnus heavy 140. Each one is 0.6125L.
The ducts are diameter 48mm and lenght 40mm.
We can see the speakers here:http://www.audiorama.com.br/cygnus/caixa_acustica.htm#HEAVY 140
and here
and some characteristics are written on the baffle (see peciture).
here in Brazil I found the following loudspeaker: Eros Alto Falantes
What do you think about this loudspeaker? Are they good for these accoustic boxes?
Is it a good idea try these accoustic boxes for the my amplifier?
I will pay around U$200.00 for the pair of the loudspeakers.
A pair of Jhensen or others good loudspeakers cost around U$500.00 (in Brazil) and is very difficult to find in Brazil.
Loudspeaker Characteristics:
RESPOSTA DE FREQUÊNCIA - 60 ~ 6.500 Hz
SENSIBILIDADE (@ 1 W, 1 m) - FREE-AIR - 97,59 dB/SPL
POTÊNCIA MÁXIMA (RMS) 400 W
POTÊNCIA MUSICAL 800 W
IMPEDÂNCIA NOMINAL 8 Ohms
RESISTÊNCIA, RE 5,2 Ohms / Vcc
ÁREA DO CONE 0,032 Sq.m
FREQÜÊNCIA DE RESSONÂNCIA 64,47 Hz
VOLUME EQUIVALENTE 31,346 L
Q MECÂNICO
5,664
(Qms)
Q ELÉTRICO 0,255 (Qes)
Q TOTAL 0,244 (Qts)
PRODUTO BL 15,635 TM
NO (REFERENCIAL DE EFICIÊNCIA) 3,192 %
COMPLIÂNCIA (CMS) 211,527 uM/N
MASSA TOTAL (MMS) 28,809 g
MASSA DIAFRAGMA (MMD) 25,461 g
EXCURSÃO CONE SEM DISTORÇÃO (X MAX) ± 4,5 mm
DENSIDADE DO FLUXO NO GAP 14.800 Gauss
This week I finished my amplifier. The basic schematic is attached.
I built a stereo amp with two parallel monoblocks and one power transformer.
The amp is running very well.
Now, the target find the correct loudspeakers to the accoustic box run well.
I have two ducted accoustic (three ways) box cygnus heavy 140. Each one is 0.6125L.
The ducts are diameter 48mm and lenght 40mm.
We can see the speakers here:http://www.audiorama.com.br/cygnus/caixa_acustica.htm#HEAVY 140
and here
and some characteristics are written on the baffle (see peciture).
here in Brazil I found the following loudspeaker: Eros Alto Falantes
What do you think about this loudspeaker? Are they good for these accoustic boxes?
Is it a good idea try these accoustic boxes for the my amplifier?
I will pay around U$200.00 for the pair of the loudspeakers.
A pair of Jhensen or others good loudspeakers cost around U$500.00 (in Brazil) and is very difficult to find in Brazil.
Loudspeaker Characteristics:
RESPOSTA DE FREQUÊNCIA - 60 ~ 6.500 Hz
SENSIBILIDADE (@ 1 W, 1 m) - FREE-AIR - 97,59 dB/SPL
POTÊNCIA MÁXIMA (RMS) 400 W
POTÊNCIA MUSICAL 800 W
IMPEDÂNCIA NOMINAL 8 Ohms
RESISTÊNCIA, RE 5,2 Ohms / Vcc
ÁREA DO CONE 0,032 Sq.m
FREQÜÊNCIA DE RESSONÂNCIA 64,47 Hz
VOLUME EQUIVALENTE 31,346 L
Q MECÂNICO
5,664
(Qms)
Q ELÉTRICO 0,255 (Qes)
Q TOTAL 0,244 (Qts)
PRODUTO BL 15,635 TM
NO (REFERENCIAL DE EFICIÊNCIA) 3,192 %
COMPLIÂNCIA (CMS) 211,527 uM/N
MASSA TOTAL (MMS) 28,809 g
MASSA DIAFRAGMA (MMD) 25,461 g
EXCURSÃO CONE SEM DISTORÇÃO (X MAX) ± 4,5 mm
DENSIDADE DO FLUXO NO GAP 14.800 Gauss
Attachments
Last edited:
Fabio,
Given your using a tube amplifier, and the types of designs you seem to like, maybe you should look for horn speakers? Old JBL or Altec Lansings?
Best,
Erik
Given your using a tube amplifier, and the types of designs you seem to like, maybe you should look for horn speakers? Old JBL or Altec Lansings?
Best,
Erik
Correction the internal dimensions of the boxes are 0.7m ; 0.35m and 0, 25m
Total volume is Vint = 0.6125L.
Other thing is: The midrange loudspeaker is sealed.
Total volume is Vint = 0.6125L.
Other thing is: The midrange loudspeaker is sealed.
Last edited:
Thanks Erik, but nowadays I can't spend much money.
So, I'm trying a low cost with I have in my hands.
I don't know if it's possible a good speaker with the parts I described above.
So, I'm trying a low cost with I have in my hands.
I don't know if it's possible a good speaker with the parts I described above.
To be honest, I'm completely confused by what you are asking. 🙂 Look around, though. There's always people throwing away perfectly nice pro speakers.
Best,
Erik
Best,
Erik
Erik, in summary I'm asking two things
1) What's a good woofer loudspeaker for a acoustic box of 61L with a duct of
diameter : 48mm
and
lenght: 40mm?
2) Is Eros E-410 XH Black (Eros Alto Falantes) a good choice for the acoustic box of question-1? (see technical characteristics of the loudspeaker)
best regards
FAB
1) What's a good woofer loudspeaker for a acoustic box of 61L with a duct of
diameter : 48mm
and
lenght: 40mm?
2) Is Eros E-410 XH Black (Eros Alto Falantes) a good choice for the acoustic box of question-1? (see technical characteristics of the loudspeaker)
best regards
FAB
Last edited:
Fab,
1 - I don't know
2 - Never heard of the driver, but if you have the specs, you can plug it into a handy online calculator like this one.
Best,
Erik
1 - I don't know
2 - Never heard of the driver, but if you have the specs, you can plug it into a handy online calculator like this one.
Best,
Erik
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