rsd500.4 or x200.4

Post by **mr tibbs** » Sun Apr 22, 2007 9:30 am

VW337 wrote:
bdubs767 wrote:But Doc said the xenon used 6 to-3p output devices per channel and that they are bipolar too??? Im lost again lol

http://www.soundbuggy.com/Eric/Car%20Au ... index.html
The Xenon has 24 TO-220's for a total of six per channel, I was incorrect when I said 8 per channel.

see page 2:
ftp://208.187.38.55/Phoenix_Gold/TechSu ... epaper.pdf

I see there is an amp missing on that sheet!!

Capital_M · Post by **Capital_M** » Sun Apr 22, 2007 9:48 am

Heres what I dont get, everywhere I read it says gains are to match H/U voltage to amp voltage and that when you match them your amp will reach full power. Why is the xenon different, or am I missing something

Post by **bdubs767** » Sun Apr 22, 2007 11:37 am

Capital_M wrote:Heres what I dont get, everywhere I read it says gains are to match H/U voltage to amp voltage and that when you match them your amp will reach full power. Why is the xenon different, or am I missing something

xenon are specail, but I have my gains set all the way back on mine and its plenty loud IMO.

gentlejax2 · Post by **gentlejax2** » Fri Jun 01, 2007 4:12 am

so did we get the TO-3 thing figured out?

rolandk · Post by **rolandk** » Fri Jun 01, 2007 7:43 am

gentlejax2 wrote:so did we get the TO-3 thing figured out?

X200.4: 2SA1303/2SC3284 TO3

RSd300.4: 2N6488/2N6490 TO-220

str8cyko · Post by **str8cyko** » Sat Jun 02, 2007 3:44 am

rolandk,

is this the same for the rsd500.4?

1moreamp · Post by **1moreamp** » Sat Jun 02, 2007 9:56 am

rolandk wrote:
gentlejax2 wrote:so did we get the TO-3 thing figured out?
X200.4: 2SA1303/2SC3284 TO3

RSd300.4: 2N6488/2N6490 TO-220

WOW The RSD line uses early PPI <M, AM & Art Series>outputs and the Xenon line uses the Pre directed high powered Sankens from the venerable 2350-21400 models of the PC and PCX series. < also used by Esoteric/ Diamond> < X PPI engineers, go figure.

RSD outputs:
http://www.onsemi.com/pub/Collateral/2N6487-D.PDF
80 volt, 15 ampere, 75 watt rated

Xenon outputs:
http://www.datasheetcatalog.com/datashe ... 1303.shtml
http://www.datasheetcatalog.com/datashe ... 3284.shtml
150 volt, 14 ampere, 125 watt rated Sanken LAPT <Linear Audio Power Transistors>

THX for that info, I now know I have parts stock for the RSD line. I have not seen any around here yet for repair < too new > The Sankens are better suited for High voltage amps power amps and the 2N64XX's are better rated for low voltage power amp designs. IMHO

rolandk · Post by **rolandk** » Mon Jun 04, 2007 9:20 am

str8cyko wrote:rolandk,

is this the same for the rsd500.4?

RSd500.4 uses TIP 35C/36C

eyesofra · Post by **eyesofra** » Mon Jun 04, 2007 10:17 am

TIP35C/36C .... are these used in rsd250.2 also ??

Looks like these trans are no slouches at all.....

check out the excerpt below i took off Dejan's writing on power transistors.

" Most European power devices are rated for up to 100V, while practically all US and Japanese devices are rated for 140V and over, 200V being nothing unusual.

Do not confuse voltage with power ratings - a transistor may have a very high voltage and a very low power rating, and vice versa. As an example, look at BD249C/250C pair (Texas Instruments, European version of TIP 35C/36C) - they are rated at just 100V, but also at 125W, a continuous current of no less than 25 amperes and an impulse current rating of a whopping 40 amperes (50 amperes in the SGS-Thomson version of TIP 35/36 C). Toshiba’s 2SC3281/2SA1302 are rated at 200V, 150W, 15 amperes continuous and 30 amperes impulse. So, while the BD249/250C pair has neither the voltage nor absolute power rating of the Toshiba 2SC3281/2SA1302 pair, it beats the hell out of the Toshibas in terms of current, no small feat when you know the Toshibas are far from being slouches themselves. "

(by Dejan V. Veselinovic - quite a reputable name in Hi-Fi tweakin world )

check out his site.....
http://www.zero-distortion.com

1moreamp · Post by **1moreamp** » Mon Jun 04, 2007 10:52 am

rolandk wrote:
str8cyko wrote:rolandk,

is this the same for the rsd500.4?
RSd500.4 uses TIP 35C/36C

THX again, I now know I have stock of all current outputs for the RSD line. The TIP-35/36 pairs are the same outputs as the old school ZED based Hifonics-Autotek lines of amplifiers.
Others used them also, and they are used by many today. If your looking at amps that use American company semi devises The defacto standards are the 2N6488/90 and the TIP-35/36 devices. These have been used for the past 20 years successfully by many companies. The TIP-35/36 devices are rated at : 100 volt, 25 amperes, at 125 watts
http://www.datasheetcatalog.com/datashe ... IP35.shtml

These devices are now made by other Asian manufacturers overseas and are currently still pretty standard use devices in many amplifiers. Kicker ZX series, PPI PC series, Hifonics and Autotek by ZED, Lighting Audio...etc...

In days gone by I would take amps with 2N6488/90 outputs and replace them with TIP35/36 outputs and realign the bias. This would jump the reliability of the amp in high current situations. I recently did this same thing to a Lighting audio 300.4 amplifier. What helped was the fact that Rockford the parent company had already setup the board to accept this change for the next model up which used the same board.

PG is using very reliable and ruggedly designed old school American designed outputs. Although they seem ordinary, they are time tested devices, with a long service history of success.

THX RolandK

C