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Amplifier recommendation

myoldstereo said:
Ya I didn't think I would find a new Yamaha since its no longer available from Crutchfield. Did see one on ebay but I am not comfortable purchasing electronics on ebay unless I knew it was from a member here that I trust.
Regarding the idea that the Cerwin Vegas wont sound good with the Bose EQ has me thinking. I tried them with and without the Bose EQ and they actually sound much better with it. I'm sure I'm the only one in America that has Bose and Vegas running at the same time, it just kinda happened one day. About two weeks after getting the Vegas finished up I saw the Bose for 200.00 and jumped on it. Next think you know I have all four speaks going.
I have enjoyed this learning process and this forum has been a wonderful asset. Before I came a member most of my google searches led me here, so here I am. Last night I learned how the Bose EQ would be connected if I were to buy separates. I do like the idea that you have more options down the road with them and I do believe the sound would be cleaner. But I also really like the Outlaw RR2160 integrated amp. It looks sweet and has just about everything I wanted. Im sure I would be happy with it for many years to come. And it certainly must produce a better sound than this old Technics home theater receiver that I am currently using. I just need to learn more about the impendence (OHMS) and wattage. I don't want to overpower my speakers or underpower them. The Bose manual says 10 wpc minimum but I don't see a max. Someone mentioned I need 300wpc to really unleash them so I have more research to do on that alone. I do like to get loud on occasion but not like heavy metal concert loud, I have to respect my ears! As a drummer, carpenter, cabinet maker and concert goer my ears suffer enough. I have a semi soundproof room (24 x 20) I built for drumming. But there are time's I want to listen to music while the wifey watches TV in the room above me. That's when the low volume comes in. So I think you answered my question on do I need a big WPC amp for low volume, answer is no.
Thank you for all your help, this thread has got me going in the right direction. I appreciate all the input from everyone!
Have a great day!

Jeff
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Just want to throw another option in here.... Emotiva. Right now their BasX PT1 preamp (that has all the connectivity you desire) is on sale for $399. You can then grab a 4 channel BasX A4 (100wpc in 8 ohms) for $559. You can then plop your Bose EQ between the two (I think?), and have 100 watts of real deal class a/b power to each speaker, you wouldn't have to stress about speaker impendence. The amp handles 4ohms, if you upgrade speakers later and need it. (or if you move to a two speaker set up in the future, you'll be set if you want to bi-amp!).
I realize this is a bit outside your budget, but its close (they offer a 10% military discount if you qualify). You can save up for more power down the road if you think you need it too... but will keep you rocking in the meantime.
 
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Oh yeah, you'll need a couple of these to make your two channels doubled for the four channel amp. add a few bucks to the budget...
1710872138596.png
 
I think there is one major problem with using a single amp (with both pairs of speakers in parallel), which is that both pairs of speakers would necessarily have the same EQ -- and the EQ needed for the Bose 901's would be wildly inappropriate for the Cerwin Vegas! Those CV 12" woofers would likely be thumping very hard with the Bose EQ bass overboost at low frequencies :eek:!

I agree with the Emotiva "preamp + 4 channel amp" solution approach above, except have the Bose EQ only between the preamp and the Bose amp channels -- feed the preamp directly to the Cerwin Vega channels.

If you want to add the ADC, it could be placed between the preamp Cerwin Vega channels. If you really want the ADS to further shape the Bose EQ also, you could have the ADC feed both the Bose EQ and the Cerwin Vega amp channels. Personally I'd just use the ADC on the Cerwin Vegas -- it's too easy to accidentally make crazy demands on the amp without reailizing it with ADC on top of the (already very heavy) Bose EQ for the Bose channels.
 
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mchriste said:
Just want to throw another option in here.... Emotiva. Right now their BasX PT1 preamp (that has all the connectivity you desire) is on sale for $399. You can then grab a 4 channel BasX A4 (100wpc in 8 ohms) for $559. You can then plop your Bose EQ between the two (I think?), and have 100 watts of real deal class a/b power to each speaker, you wouldn't have to stress about speaker impendence. The amp handles 4ohms, if you upgrade speakers later and need it. (or if you move to a two speaker set up in the future, you'll be set if you want to bi-amp!).
I realize this is a bit outside your budget, but its close (they offer a 10% military discount if you qualify). You can save up for more power down the road if you think you need it too... but will keep you rocking in the meantime.
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Wow thank you very much for the suggestion. I went to their site and that is some nice looking gear and your right it offers everything I wanted plus the price is very doable. I like when they have good videos on the product to watch also. I will defiantly consider this option, thanks again!
 
peterp1 said:
I think there is one major problem with using a single amp (with both pairs of speakers in parallel), which is that both pairs of speakers would necessarily have the same EQ -- and the EQ needed for the Bose 901's would be wildly inappropriate for the Cerwin Vegas! Those CV 12" woofers would likely be thumping very hard with the Bose EQ bass overboost at low frequencies :eek:!

I agree with the Emotiva "preamp + 4 channel amp" solution approach above, except have the Bose EQ only between the preamp and the Bose amp channels -- feed the preamp directly to the Cerwin Vega channels.

If you want to add the ADC, it could be placed between the preamp Cerwin Vega channels. If you really want the ADS to further shape the Bose EQ also, you could have the ADC feed both the Bose EQ and the Cerwin Vega amp channels. Personally I'd just use the ADC on the Cerwin Vegas -- it's too easy to accidentally make crazy demands on the amp without reailizing it with ADC on top of the (already very heavy) Bose EQ for the Bose channels.
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Thanks for chiming in! Glad you agree with mchriste on the Emotiva and thank you for the very specific advice on the ADC and Bose EQ. Later tonight I might draw out a wire diagram based on your instructions and post it to see if I am understanding this. I would like to use my ADC soundshaper, likely I would take your advice and use it on the Vegas only, if that will work. The vegas do thump pretty good with the Bose EQ!
One question, what do you mean by Bose amp channel, and Vegas channels?
And I'm not clear on feed the preamp directly to the Vegas, there is no speaker connections on the preamp correct?
Sorry for the questions, I'm new at this but really enjoying the learning curve I'm currently on!

thank you
Jeff
 
mchriste said:
Oh yeah, you'll need a couple of these to make your two channels doubled for the four channel amp. add a few bucks to the budget...
View attachment 3152624
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Well if purchasing new expensive amps I would think the next thing will be getting better RCA cords or jumpers, what ever you call them. The ones I'm using now are very old. But that might be an upgrade down the road.
 
myoldstereo said:
Thanks for chiming in! Glad you agree with mchriste on the Emotiva and thank you for the very specific advice on the ADC and Bose EQ. Later tonight I might draw out a wire diagram based on your instructions and post it to see if I am understanding this. I would like to use my ADC soundshaper, likely I would take your advice and use it on the Vegas only, if that will work. The vegas do thump pretty good with the Bose EQ!
One question, what do you mean by Bose amp channel, and Vegas channels?
And I'm not clear on feed the preamp directly to the Vegas, there is no speaker connections on the preamp correct?
Sorry for the questions, I'm new at this but really enjoying the learning curve I'm currently on!

thank you
Jeff
Click to expand...

The Emotiva amp @mchriste suggested has 4-channels, so you would use one pair of amp channels for the Bose, and the other channel pair for the Cerwins.

The 4-channel amp has four inputs (one for each channel), and the preamp only has two outputs (left and right) -- so you would use a pair of splitters like the ones shown below. One splitter on the left and the other on the right to allow you to drive the four channel inputs on the amp. For example, the left preout would be split to left-Bose amp channel input and left Cerwin-amp channel input. In your case, one would go to the Bose EQ input (whose output would go to the Emotiva amp Bose channel input) and the other side of the splitter would go to the ADC input (whose output goes to the Emotiva Cerwin channel input).

Splitter Link:
610d5CnlN4L._SL1500_.jpg
 
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Awesome, I was just making a diagram like that and realized I don't know what to do. So thanks, after dinner I will look it over real close.
 
mchriste said:
I think you’ve got the right idea… but your drawing looks like the Bose eq is sending signal to a 901, and a CV. You want the Bose EQ going to 901 speakers only. Then the signals going from the ADC to the CV’s only. does that make sense?
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Yes, makes total sense, I see the mistake. Lets see if I can correct it and repost. This diagram took a long time !
 
Here is the corrected diagram. The thing I don't get is there is no right and left on the power amp, just 1 2 3 4. So how do you know which is right and left?20240320_055202.jpg
 
You don't actually need the Y cables. Send the preamp output to the Bose EQ. Connect the line out of that EQ to the amp channels connected to the Bose speakers. Connect the tape out of the Bose EQ to the line in of the ADC EQ, and then connect the line out of the ADC EQ to the other two amp channels.
 
myoldstereo said:
Here is the corrected diagram. The thing I don't get is there is no right and left on the power amp, just 1 2 3 4. So how do you know which is right and left?View attachment 3153182
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Yeah, that looks correct. It's best to think of the power amp as four separate amps, each channel will amplify whatever signal it gets, left, right, center... it doesn't care. The only part that really "knows" what is the left stereo channel or right stereo channel is the pre-amp. So its just important that you "connect the dots". that Left main out from the pre-amp needs to get to the left "in" of each EQ, and the left out of the EQ's needs to get to the amp channel that is connected to the correct left speaker. Same for right.
 
swechsler said:
You don't actually need the Y cables. Send the preamp output to the Bose EQ. Connect the line out of that EQ to the amp channels connected to the Bose speakers. Connect the tape out of the Bose EQ to the line in of the ADC EQ, and then connect the line out of the ADC EQ to the other two amp channels.
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I see what you mean here... I figured the Tape recorder connection where for a line-level input, no? will that loop just pass through an un-equalized signal? ... I suppose I don't exactly know the point of those connections?
 
mchriste said:
Yeah, that looks correct. It's best to think of the power amp as four separate amps, each channel will amplify whatever signal it gets, left, right, center... it doesn't care. The only part that really "knows" what is the left stereo channel or right stereo channel is the pre-amp. So its just important that you "connect the dots". that Left main out from the pre-amp needs to get to the left "in" of each EQ, and the left out of the EQ's needs to get to the amp channel that is connected to the correct left speaker. Same for right.
Click to expand...
Im getting it now. It weird to me that there is no balance control and A-B speaker switch. SO if I get this setup I wont be able to turn off the Bose or the Vegas independently. I'm not sure that's important or not. Currently I do like to hear one or the other on occasion but it really sounds best when all four are going. I also need to experiment with the position of the Bose, I pretty much bought them and set them up as fast as I could because I was excited. I have a longer wall that might be better for them but I had already plan to build cabinets for my snare drums, stereo, albums and cd's on the wall shorter wall.
 
swechsler said:
You don't actually need the Y cables. Send the preamp output to the Bose EQ. Connect the line out of that EQ to the amp channels connected to the Bose speakers. Connect the tape out of the Bose EQ to the line in of the ADC EQ, and then connect the line out of the ADC EQ to the other two amp channels.
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Thank you for the alternative wiring suggestion. If I end up buying these components I'm sure I will experiment with both ideas.

Jeff
 
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