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In the Forum: Audio Discussions
In the Thread: A listening room for a domesticated Cat?
Post Subject: What a brilliant idea!Posted by Romy the Cat on: 10/28/2017
I have so much fun today. I sent the whole kids with their nanny and mom to a Boston children museum along with ants and with grandparents and deeded to stay home to work on my listening room. Since I did not have good sound before I did not particularly cared about the room decor and room organization but now as the playback is back to the business I become a bit anal and I want the room to be as I want. It will take for a while to resort some mixed up during the moving recording, to hang the artworks and to do many other organization task. So I was sitting in my listening chair blasting Bartok sting quarters and making my “to do list” and suddenly a brilliant idea hit my mind.  
 
As now I am driving my 50-125 midbass from Milq bass channel and the same amp is driving the bass sub 40Hz. So, even though I have a series cap in midbass that should decuple the Midbass and Lower Bass but it is still 6 dB per octave and to a degree my lower bass much be overly damped by my midbass?  Would it be something that is responsible for some “very mild softness of lower end hardness” that I described above? So, ides was to let the bass Milq to drive ONLY the lower bass tower, like in “old good times”? How to do it? It means I need to drive my Midbass from somewhere else…
 
Examining the Milq schematic I come to a great idea: why now to drive my Midbass from Injection Chanel.  The Injection Chanel is a full range Milq with just an attenuator in front of it. It drives a single Tannoy Red at -12dB with 125Hz high pass filter. God! This cannel is begs to drive the Midbass. So, what I need to do is to open up the Injection Chanel input attenuator, assuring the full gain and put the attenuator to speaker level for whatever would need attenuation. It is possible that since the Midbass is 99dB sensitive and Tannoy in beginning of 90s but need to run well attenuated then both Midbass and Injection Channels will need the same gain, that would be so much fun!!! 

InjectionChanelMidbass.JPG

 
The benefits are VERY clear. My lower bass will be less compromised and I can get rid of the series cap from Midbass as I do not need Tannoy to work at lower frequencies.  Also, the Injection Chanel has much more suitable OPT and loading for single Vitavox then my bass channel.  
 
I am very optimistic with this idea. It is become very elegant and getting rid so much complexity! I truly forgot that I have a full range Melquiades built in into my Super Melquiades. I am telling you. The guy who did it was a genius!!!

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