- #Soundstream amp driver#
- #Soundstream amp full#
- #Soundstream amp pro#
- #Soundstream amp Pc#
- #Soundstream amp professional#
Every time we had to switch devices to another production run we would double check the bias. Pretty impressive when you realize that the Reference series were designed to operate into 1/2 ohm per channel.Īs far as the bias goes all amplifiers were adjusted in the lab to just above the appearance of crossover distortion not at a predetermined voltage. Usung these devices we built over 120.000 amplifiers in 17 years, and we did not have any failure problems. You could actually get away with less devices for the same power level. Especially if you put a filter in limitimg them to 100 ms, This information was determined by getting a SAO chart from the manufaturers, Motorola and TI, showing operation to 100ms, which increased the sOA to about 1.4x. The TIP102/TIP107 have a much better SOA rating. But he never looked at the Safe Operating Area. I'm guessing he switched to them because they were higher current devices. Those were used by the engineer that designed the Rubicon series. MOER, I never designed any amps using the TIP142/TIP147. I also can repair any Soundstream Old Ochool and Rubicon amps. If youi or anyone else has any more questions please feel free to contact me. Give me a better description of what you were asking and i will answer you.
#Soundstream amp pro#
The tarantula was based on Pro amp that was part of Stewart World Series amplifier line. I had a Pro Audio brand named Stewart electronics. I also designed the tarantula and Davinci. I also designed all heat sinks, power and output connectors and rca input jacks. I designed the MC series, Reference series, the later CA series, Granite, uSA and SA series. Also is it also true that the only issue with the amps were the ratings only spec'ed power supplies? Are you talking about thgere power ratings? Can anything be done with the factory D series amp to provide more margin in the power supply? Are you asking if you can get more power out of thge amps by modifying the power supplies? I also added the CA100 an adaptation based on Nelsons original designs.Ĭould you give me a clearer description of exactly waht you mean when you asked.
#Soundstream amp Pc#
In the II series I re-laid them out on single PC Boards, then my company began manufacturing them. All I did tto solve this problem was to re-adjust the bias to a lower setting. A condition where the bias is set to high and over time the amps would overheat and shut down. They were laid out with point to point wiring which meant that they were not cost effective to build. I’ll be here.Click to oystg, The original D60, D100, D200, CA40 and CA50 were designed by Nelson Pass. I hope this is enough info, if there is anything else you want to know just ask. Maybe some other company may be interested in my ideas. Actually I recently approached the new Soundstream company with ideas about resurrecting some of the older designs and introducing new technology, but they don’t seem to be interested.
#Soundstream amp full#
Making them just a me-too product in a market full of me-too products. All new amps would only drive 4 & 2 ohms. Products built after 1997 I’m not sure about.Īs far as the amps not designed or built by me from 1998 on, I thought it was the kiss of death for Soundstream. Basically I designed the amplifier section to withstand all that the power supply could deliver, that way the supply would sag but the amp wouldn’t blow, and YES every amplifier that left my factory met power specs and then some. I realized at that time that Car Audio guy’s needed to drive lots of subs that’s when I started designing amp that would, and actually did, drive loads as low as1/8th ohm per channel, ¼ ohm bridged. This allowed them to drive 4/2 ohms in hi-voltage and 2/1 ohms in hi-current. So I designed the next rev’s with a hi-power / hi-current switch. Then I noticed that other companies were offering hi-voltage and hi-current models. The next series of REFERENCE and CLASS A’s we added the Thermal Roll Back and a few other new features but they still only drove 4 & 2 ohms. Years earlier I designed a line of guitar amps using Darlington’s and guitarists were constantly mistaking them for tube amps because of there warmth. They are physically connected together, this makes the amplifiers sound much warmer.
#Soundstream amp driver#
All of the amplifiers used Darlington pairs as output transistors, driver and output transistors in the same case. After those initial amps I started designing all of their amps and crossovers. I was approached by Soundstream to manufacture there amplifiers, originally designed by Nelson Pass. In fact in 1994 we won a TEC award from the Audio Engineering Society for one of our power amplifiers, an award only given a few time in the history of the AES.
#Soundstream amp professional#
In 1981 I owned Stewart Electronics and I designed and manufactured Professional Audio Equipment. I don’t know how much detail you want about the history, but here’s how it goes. I’m not quite sure I’m a legend, but thanks anyway.
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