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Post by anacephalic on May 11, 2006 10:59:31 GMT -7
i sniped this off the Aiken site under the Q&A section and since life without a brake is dangerous to those around us i always use mine. I have an original Rx with 2 8 ohm celestian 30s which gives a 4 ohm load. I also use the 4 ohm load jack with the airbrake. Should i be using the 8 ohm jack ? I think running the lower impedence actually puts less load on the tranny per the instructions but no hurt in asking
Q: I have a Dr. Z AirBrake attenuator and am ordering an Ultimate Attenator. Are these safe to use with my Sabre? A: Be sure to set the Sabre to 8 ohms when using the Dr. Z AirBrake with either a 16 ohm cabinet or an 8 ohm cabinet at any level other than bypass (where you'll need to switch back to 16 ohms or 8 ohms to match the cabinet being used). The Z-Brake presents close to an 8 ohm load in most cases (contrary to their marketing claims, there is no such thing as a "one-size-fits-all" attenuator that properly matches all impedances. This is in reality an 8 ohm unit being marketed as "universal") . Running the amp at 16 ohms into an 8 ohm load at high power will accelerate tube wear and could cause damage, so be sure to match the load.
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Post by prowler on May 11, 2006 15:36:42 GMT -7
Interesting. Hopefully Z will chime in on this one.
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Post by myles on Jun 1, 2006 17:06:03 GMT -7
The Airbrake works great at 4-8-16 ohms. That is one of it's cool aspects. Another cool aspect is it needs no power and is simple and rugged.
For the 2005 June-October Loggins & Messina tour, they wanted to lower stage volume but when the amps were turned down a bit they lost their life. They asked about the GT Speaker Emulator that has an attenuator funtion (and that is all that was needed) but also had a number of other functions (that were not needed). I looked at our setup and we already had a few miles of AC cords on the stage behind the amps and in front of the drum riser. The extra AC that the GT SE needed was going to be a problem. The GT unit is also a one rack space unit. We did not want to set up another rack for five of these.
I suggested the Airbrake .... and their tour manager was a bit surprised I opted for a non-GT product as he knew I worked for GT and GT was already supplying tubes and Bricks for the tour. I opted for the best solution to the problem. The Airbrakes were wired in place in the bottom of each amp and performed flawlessly from June until October.
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