Mobs
Well-known member
Hello all!
I recently changed my AVR (Denon 4308) for new model (Onkyo 5009) to use with my Sherbourn 7-2100 amp.
I used the 7 channels on the amp to power my Center, Surrounds and Bi-Amp my Vistas (vertical as per ML's description). My amp is rated @ 200 wpc @ 8ohms and 300 wpc @ 4 ohms. You can also bridge two channels of the amp to run 400 wpc @ 8 ohms, but they do not want you to bridge and run at 4 ohms.
My amp has something called an LDS switch. Basically, when your speakers are connected it will tell you if there is a problem with the speaker connection to that particular channel by illuminating a LED a particular color. Green is a good connection, Orange is an open circuit or a speaker of high impedance is being used, and Red means a short circuit or speaker impedance is too low.
Well, I have never had any Red indicators. YAY! But I do have Orange.
Now, if I haven't lost you yet, this is where it gets interesting (for me at least).
The Orange LED only shows on the connections for my Fresco (center) and the Panels of the Vista.
Well, this got me thinking (bad combination sometimes) about the following scenarios...
1. In a Bi-Amp scenario with the woofer and panel having their own independent connections to individual channels on my amp, the panel would be pulling more power because of the impedance.
2. In a single wire scenario using the Vista's jumpers and only one channel driving the woofer and panel the would both be pulling the same amount of power.
Am I off base with this thought?
I took this a step further. My amp can bridge channels, just not 4 ohms or less. I have confirmed this as the amp will power off immediately when trying to bridge two channels to a single wire/jumper connection to the Vista.
But, I can bridge two channels and power the woofer and use a single channel to power the panel. When I did this the experiment the bass really came to life. I felt the speaker sounded more like a Vantage with its powered woofer after this connection. I did not get the feeling that the low end over-powered the panel, but it was more pronounced.
Sadly, I do not have any way to adjust the gain on the channels of my amp.
Obviously ML thought about this long before I, but it seems to be that "Vertical Bi-Amping" as per their definition is not a good solution with the Vistas. I think you would be better served to single wire or "Horizontal Bi-Amping" would be a better solution.
All of this rambling is leading up to the fact that I took delivery of a second Depth i today which I cannot wait to get home and set up and run Audyssey Multi XT32 with dual subs to see that outcome.
I will probably keep crossing over the Vista's at the 70 mark.
Opinions on my thoughts, or lack there of? Am I about to blow up my house?
I recently changed my AVR (Denon 4308) for new model (Onkyo 5009) to use with my Sherbourn 7-2100 amp.
I used the 7 channels on the amp to power my Center, Surrounds and Bi-Amp my Vistas (vertical as per ML's description). My amp is rated @ 200 wpc @ 8ohms and 300 wpc @ 4 ohms. You can also bridge two channels of the amp to run 400 wpc @ 8 ohms, but they do not want you to bridge and run at 4 ohms.
My amp has something called an LDS switch. Basically, when your speakers are connected it will tell you if there is a problem with the speaker connection to that particular channel by illuminating a LED a particular color. Green is a good connection, Orange is an open circuit or a speaker of high impedance is being used, and Red means a short circuit or speaker impedance is too low.
Well, I have never had any Red indicators. YAY! But I do have Orange.
Now, if I haven't lost you yet, this is where it gets interesting (for me at least).
The Orange LED only shows on the connections for my Fresco (center) and the Panels of the Vista.
Well, this got me thinking (bad combination sometimes) about the following scenarios...
1. In a Bi-Amp scenario with the woofer and panel having their own independent connections to individual channels on my amp, the panel would be pulling more power because of the impedance.
2. In a single wire scenario using the Vista's jumpers and only one channel driving the woofer and panel the would both be pulling the same amount of power.
Am I off base with this thought?
I took this a step further. My amp can bridge channels, just not 4 ohms or less. I have confirmed this as the amp will power off immediately when trying to bridge two channels to a single wire/jumper connection to the Vista.
But, I can bridge two channels and power the woofer and use a single channel to power the panel. When I did this the experiment the bass really came to life. I felt the speaker sounded more like a Vantage with its powered woofer after this connection. I did not get the feeling that the low end over-powered the panel, but it was more pronounced.
Sadly, I do not have any way to adjust the gain on the channels of my amp.
Obviously ML thought about this long before I, but it seems to be that "Vertical Bi-Amping" as per their definition is not a good solution with the Vistas. I think you would be better served to single wire or "Horizontal Bi-Amping" would be a better solution.
All of this rambling is leading up to the fact that I took delivery of a second Depth i today which I cannot wait to get home and set up and run Audyssey Multi XT32 with dual subs to see that outcome.
I will probably keep crossing over the Vista's at the 70 mark.
Opinions on my thoughts, or lack there of? Am I about to blow up my house?