radiovox amp here is a picture of it

joka22 · 13th July 2008, 01:59 PM

hi i have got a radiovox amplifier very heavy built like a tank but i dnt knw the spec of this amp it is well made. so i am posting a picture of it so that anyone out there can tell me some information on it.

<a target='_blank' href='http://img143.imageshack.us/my.php?image=imagena5.jpg'><img src='http://img143.imageshack.us/img143/7915/imagena5.th.jpg' border='0'/></a>

or try this link http://img143.imageshack.us/my.php?image=imagena5.jpg

joka22 · 15th July 2008, 10:33 AM

com on folks am desperate to find information on this amplifier i cant seem to find any info on it. Anyway how would i measure the watts on this amp it very loud i got three speakers connected in series =20 ohms and 310 watts altogether i cant turn it up past number 5 on the volume pot before the speakrs start to crackle loudly.

joka22 · 15th July 2008, 12:51 PM

http://img181.imageshack.us/my.php?i...19pppppek6.jpg

here is another image of the inner works of the amp

it has two power supplies one is the square one and one is underneath the centre circuit board it is i think torrid circle type transformer.

jacco vermeulen · 15th July 2008, 01:27 PM

Looks like a very nice 100V line amplifier.

joka22 · 15th July 2008, 01:37 PM

how did u know that just from the circuit board cos it does say 100v line on the speaker outlet at the back what does it mean just i need to know how loud it is rms wise?

jacco vermeulen · 15th July 2008, 01:43 PM

It's for 100V loudspeakers, they used that for intercom systems.
High voltage = Low current= Low power loss at long distances.
Means you do not need fancy thick wires.

joka22 · 15th July 2008, 01:45 PM

how would i find out the total rms of this amplifier just says radiovox leeds on it it looks custom made. it looks like it was hand made.

jacco vermeulen · 15th July 2008, 01:46 PM

For one, the output transformer size, probably somewhere between 100 and 200 Watts.
The name RadioVOX is also a giveaway btw, VOX means something like Voltage-Operated-Xover.

joka22 · 15th July 2008, 01:48 PM

all i knw it got two type transformer am good at making burnin laser drivers not audio i got multimeter i can measure voltage not ma that dont work on my multimeter.

joka22 · 15th July 2008, 01:50 PM

i got 310 watts 20 ohyms (speakers wired in series) speaker attached they sound like they gona pop when i put past 5 on the volume. i got four of them round transistors they are attcahed on the outside heatsink.

13th July 2008, 01:59 PM	#1
joka22 diyAudio Member Join Date: Jun 2007	radiovox amp here is a picture of it hi i have got a radiovox amplifier very heavy built like a tank but i dnt knw the spec of this amp it is well made. so i am posting a picture of it so that anyone out there can tell me some information on it. <a target='_blank' href='http://img143.imageshack.us/my.php?image=imagena5.jpg'><img src='http://img143.imageshack.us/img143/7915/imagena5.th.jpg' border='0'/></a> or try this link http://img143.imageshack.us/my.php?image=imagena5.jpg

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15th July 2008, 10:33 AM	#2
joka22 diyAudio Member Join Date: Jun 2007	com on folks am desperate to find information on this amplifier i cant seem to find any info on it. Anyway how would i measure the watts on this amp it very loud i got three speakers connected in series =20 ohms and 310 watts altogether i cant turn it up past number 5 on the volume pot before the speakrs start to crackle loudly.

15th July 2008, 12:51 PM	#3
joka22 diyAudio Member Join Date: Jun 2007	http://img181.imageshack.us/my.php?i...19pppppek6.jpg here is another image of the inner works of the amp it has two power supplies one is the square one and one is underneath the centre circuit board it is i think torrid circle type transformer.

15th July 2008, 01:27 PM	#4
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	Looks like a very nice 100V line amplifier.

15th July 2008, 01:37 PM	#5
joka22 diyAudio Member Join Date: Jun 2007	how did u know that just from the circuit board cos it does say 100v line on the speaker outlet at the back what does it mean just i need to know how loud it is rms wise?

15th July 2008, 01:43 PM	#6
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	It's for 100V loudspeakers, they used that for intercom systems. High voltage = Low current= Low power loss at long distances. Means you do not need fancy thick wires.

15th July 2008, 01:45 PM	#7
joka22 diyAudio Member Join Date: Jun 2007	how would i find out the total rms of this amplifier just says radiovox leeds on it it looks custom made. it looks like it was hand made.

15th July 2008, 01:46 PM	#8
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	For one, the output transformer size, probably somewhere between 100 and 200 Watts. The name RadioVOX is also a giveaway btw, VOX means something like Voltage-Operated-Xover.

15th July 2008, 01:48 PM	#9
joka22 diyAudio Member Join Date: Jun 2007	all i knw it got two type transformer am good at making burnin laser drivers not audio i got multimeter i can measure voltage not ma that dont work on my multimeter.

15th July 2008, 01:50 PM	#10
joka22 diyAudio Member Join Date: Jun 2007	i got 310 watts 20 ohyms (speakers wired in series) speaker attached they sound like they gona pop when i put past 5 on the volume. i got four of them round transistors they are attcahed on the outside heatsink.

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