SuperToaste7
Active Member
Hello all, wanted to make this post about my current project I'm working on. This is Onkyo's Premier speaker system from the 1970s. This was their full fledged DIY speaker system that allowed the user to combine and create various layouts and sound adjustments to their liking. The cabinet is a 200L bass relax type and From an interview with the head engineer at the time, its stated that:
"A simple calculation reveals that the total number of possible combinations is 315, and even if we eliminate those that are considered unreasonable, we are left with 173. Listening to all of these combinations and setting the optimum network constants, and inter-unit levels, a task that challenged the limits of concentration and patience, became Tsurumoto's daily routine for the latter half of the year."
I have the entire interview about the scepter line and how it came to be from Onkyo's engineers as well as others involved in the creation of it from the very beginning. I might try and post that at some point since it's not very common and it began in the late 60s. You can even make the scepter 500 using this system as the original units in it are used in this, with the specific combination as well as the network boards which I figured out which ones the 500 use in it.
It's taken me about 6 years or so to nearly get everything and to make it a 99 percent original build as the original crossover boards are unobtanium , and I am just now working on making the crossover boards with the schematics of each one. Disregard the ugly baffle as it's a placeholder until I have the actual ones made. Yes there were even different baffles to choose from depending on what you were mounting to the cabinet. I am looking forward to the day that they can start playing music though!
I will post some photos of the different layouts you can do as there were two cabinets to choose from to start with. Enjoy!
"A simple calculation reveals that the total number of possible combinations is 315, and even if we eliminate those that are considered unreasonable, we are left with 173. Listening to all of these combinations and setting the optimum network constants, and inter-unit levels, a task that challenged the limits of concentration and patience, became Tsurumoto's daily routine for the latter half of the year."
I have the entire interview about the scepter line and how it came to be from Onkyo's engineers as well as others involved in the creation of it from the very beginning. I might try and post that at some point since it's not very common and it began in the late 60s. You can even make the scepter 500 using this system as the original units in it are used in this, with the specific combination as well as the network boards which I figured out which ones the 500 use in it.
It's taken me about 6 years or so to nearly get everything and to make it a 99 percent original build as the original crossover boards are unobtanium , and I am just now working on making the crossover boards with the schematics of each one. Disregard the ugly baffle as it's a placeholder until I have the actual ones made. Yes there were even different baffles to choose from depending on what you were mounting to the cabinet. I am looking forward to the day that they can start playing music though!
I will post some photos of the different layouts you can do as there were two cabinets to choose from to start with. Enjoy!
