Posted by dave (i) on January 23, 2001 at 09:47:22:

In Reply to: Dear Mr. Welborne... posted by john on January 19, 2001 at 20:06:24:

There is a huge difference in percieved power between a regular 300B and one that uses 300BXLS's. I have the Apollos, and an ASL Tulip which uses 2A3's single-ended, and have had two AudioNote Kit Ones. The power difference is noticeable on all speakers, from Lowthers to Thiels. Find a pair of Apollos. They are top notch in every way. They will go as loud as you dare on any speaker you want. The power difference is NOT subtle.

• Re: Dear Mr. Welborne... Chris O 10:21:57 01/23/01 (0)
  In Reply to: Re: Dear Mr. Welborne... posted by dave on January 23, 2001 at 09:47:22:

  You are kind of comparing apples and oranges. The voltage and current drivers in a SET amp have a great impact on the sound. The Mu stage driver in the Laural's and Apollo's will drive the output tubes differently (better) than your usual driver stages. I totally agree that different amps can sound much different and that different amps with the similar wpc ratings can have different perceived loudness.

  What I am talking about is changing only the OPT in an otherwise unchanged design. Also, don't think you are going to create an Apollo by simply upping the B+ and bias of a Laural. If this was possible, Ron could have brought the Apollo to market for the same price as the Laural. (simply plug in a bridge rectifier in place of the 5AR4, change the cathode bias resistor and change the driver stage B+ dropping resistor. This would actually be cheaper than the Laural.)
  
  

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