Crossover refers to the commutation of current in the output buffer, so it moves but does not necessarily lessen but the phase of all the distortion components becomes modulated. Audible difference, don't know. Certainly worth pursuing as a source of amp/speaker interaction.
Speaker designer of very high price products did`t measure such a basic stuff as the speaker impedance...That tells a lot. 🙂 Ok, people make mistakes, but this example is silly...I could understand that if he was selling 200$ a pair speakers made in China, or something like that...
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Bogdan you remind me of those who used to give me a hard time about the cost of making the CTC Blowtorch. It appears to be beyond you that the cabinet is VERY COSTLY to make, just like it was for us to make the aluminum cases for the CTC Blowtorch that cost us about $3000, 15 years ago. Criticism is easy, perfection is not.
These aggressive protection schemes cuased a lot of grief in the late 70-ies. Far too many amps, typically from mnufacturers' top f the line ranges, were pished so hard by the undying Japanese drive to use SEPP output stages in high power amplification that their protection circuits had to be aggressive. They still offer models rated at 100/200W into 8/4 Ohms using just one pair of 150W devices. That just sounds hunny and flat when connected to a sdeaker with a funny impedance modulus.
Ok, let me correct my self:
Speaker designer did`t measure such a basic stuff as the speaker impedance?🙂
That's a good enough reason to stick with B&W. All that basic stuff is attended to and you get performsnce on the 802's that one reviewer described as 'a speaker that swats 5 and 6 K $ speakers away as if they were gnats' or words to that effect.
Original WATTs can be forgiven. They were not designed as a production monitor just people asked to buy them. This was what, 35 years ago? Likewise the WAMM, back then no one expected $100k speakers to sell and they ended up selling around 100 sets before.
Double stacked ESL 57 will separate the amplifier wheat from the chaff. Difficult load and doesn't audibly mask much.
You are correct, billshurv. For the record, the WAMM was VERY kludge like. BUT it worked! It could sound wonderful. My friends and I used to go over to Dave's house (in the bay area) in the 1980's to have a listening party. It was wonderful!
Dave tried everything, and he was not prejudiced by an engineering degree on what not to do. He has a degree in biology or something, instead. You know, professional but not really technical.
Dave tried everything, and he was not prejudiced by an engineering degree on what not to do. He has a degree in biology or something, instead. You know, professional but not really technical.
Paul once observed that if you could make a speaker 100% efficient it would have a perfectly flat frequency response. Not really true, but fun.
Thanks, as always,
Chris
Thanks, as always,
Chris
Still, I fondly preserve memories of auditioning his Heresy speakers in the late 70ies. Reminded me of Monty Python's memorable line: "And now, for something completely different".
While in Japan I heard a pair of the big Tannoy's (you know the ones that look like they belong in some whiskey and cigar gentleman's club, Pall Mall, London). Wow, what a sound - fantastic imaging. I think they were being driven by a luxman amp. Quite expensive though - about 10 big ones IIRC.
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