Connecting a power amp to yamaha avr.

[Sly]

There are both input and output xlr jacks on the A8A receiver, use the ones marked pre-out if using an xlr to xlr cable. Or just use an rca pre-out to xlr input on the amp with an rca to xlr cable.

Tried that. Have got rca/xlr. Could try the xlr/xlr route to see if its those pre outs which are buggy.

 

[lovinthehd]

Tried that. Have got rca/xlr. Could try the xlr/xlr route to see if its those pre outs which are buggy.

Worth checking both pre-outs, but both should be live full time. You already did the reset? Even sometimes a soft reset (unplugging the avr from power for a bit) can clear things up....

 

[Sly]

Worth checking both pre-outs, but both should be live full time. You already did the reset? Even sometimes a soft reset (unplugging the avr from power for a bit) can clear things up....

Yep tried a full reset n no change.
Thats what i thought about the pre outs, they should be working all the time, and still can't get a clear answer from yamaha so confused as everyone else about this.

 

[PENG]

Theres pre outs for xlr inputs? Didn't realise that, although the rca's still should work especially at 3ft.
Going to send it back to dylan to test the amps, am in the uk so a bit of a pita, although i didn't think this would be an issue tbh.

As we have told you already, you AVR RX-A8A has XLR for both inputs and outputs, in order to do what you want to do, use a XLR to XLR interconnect cable, connect one end to the XLR outputs (not inputs) at the RX-A8A's XLR pre outs, and the other end to the XLR inputs at the buckeyeamp.

Of course you can also use a RCA to XLR interconnect cable and in that case you already know to connect the RCA end to the RX-A8A's RCA pre outs and the XLR end to the buckeyeamp.

Both ways will work, but the XLR to XLR way is better for the buckeyeamp because the pre out voltage from the AVR's XLR outputs is higher, 2 times higher.

The buckeyeamp is most likely fine, just how you hook things up is likely the issue, but again, it is better to do factory reset on the AVR first and then start from the beginning.

 

[Sly]

As we have told you already, you AVR RX-A8A has XLR for both inputs and outputs, in order to do what you want to do, use a XLR to XLR interconnect cable, connect one end to the XLR outputs (not inputs) at the RX-A8A's XLR pre outs, and the other end to the XLR inputs at the buckeyeamp.

Of course you can also use a RCA to XLR interconnect cable and in that case you already know to connect the RCA end to the RX-A8A's RCA pre outs and the XLR end to the buckeyeamp.

Both ways will work, but the XLR to XLR way is better for the buckeyeamp because the pre out voltage from the AVR's XLR outputs is higher, 2 times higher.

The buckeyeamp is most likely fine, just how you hook things up is likely the issue, but again, it is better to do factory reset on the AVR first and then start from the beginning.

Have tried full reset to try n iron things out and ordering some xlr/xlr cables.
Didn't realise they were higher voltage, at least that way it'll narrow things down.

 

[PENG]

Have tried full reset to try n iron things out and ordering some xlr/xlr cables.
Didn't realise they were higher voltage, at least that way it'll narrow things down.

2 times higher, for the same input voltage. That means if you use XLR to XLR, you will find yourself listening to the same sound pressure level with volume set lower and that may help lowering distortions and noise you are currently getting.

The low cost Monoprice premier series XLR cables will be good enough.

In most cases, there will be no audible benefits but the buckeyeamp has only balanced inputs and there is no gain adjustment so you will get the typical gain for his amps at about 25 to 25.5 dB, that's about 3 to 4 dB lower than that of most AVR's build in power amps. That's why in your use case, I highly recommend you take advantage of the RX-A8A's XLR outputs.

Of course the A8A only offers XLRs for the front left and right channel, but it is still of benefits, especially when you using the AVR for 2 channel stereo music enjoyment.

 

[Sly]

2 times higher, for the same input voltage. That means if you use XLR to XLR, you will find yourself listening to the same sound pressure level with volume set lower and that may help lowering distortions and noise you are currently getting.

The low cost Monoprice premier series XLR cables will be good enough.

In most cases, there will be no audible benefits but the buckeyeamp has only balanced inputs and there is no gain adjustment so you will get the typical gain for his amps at about 25 to 25.5 dB, that's about 3 to 4 dB lower than that of most AVR's build in power amps. That's why in your use case, I highly recommend you take advantage of the RX-A8A's XLR outputs.

Of course the A8A only offers XLRs for the front left and right channel, but it is still of benefits, especially when you using the AVR for 2 channel stereo music enjoyment.

That is better considering i'll get a lower noise floor although its a shame theres only 2 channels, like you mentioned though, will be good for 2 ch music.
Want the amp really because i'll have some power hungrey speakers, either kef r1's/1528's so wasn't expecting to much diffrence but covering bases, don't think the avr's amps will do them justice.
And was looking through a selection of xlr/xlr cables, monoprice do look appealing although dylan mentioned that they're rca/xlr's could be unreliable, forget why but their a decent company so definitley a good consideration.

 

[PENG]

Have tried full reset to try n iron things out and ordering some xlr/xlr cables.
Didn't realise they were higher voltage, at least that way it'll narrow things down.

2 times higher, for the same input voltage. That means if you use XLR to XLR, you will find yourself listening to the same sound pressure level with volume set lower and that could result in lower distortions and noise.

The low cost Monoprice premier series XLR cables should be good enough.

In most cases, there will be no audible benefits but the buckeyeamp has balanced (XLR) inputs only, and there may or may not be any gain adjustments, so you will get the typical gain for his amps at about 24 to 26.8 dB, that's about 2 to 5 dB (depending on the input stage you have chosen) lower than that of most AVR's build in power amps. That's why in your use case, I highly recommend you take advantage of the RX-A8A's XLR outputs.

Of course the A8A only offers XLRs for the front left and right channel, but it is still of benefits, especially when you using the AVR for 2 channel stereo music enjoyment.

 

[lovinthehd]

Yep tried a full reset n no change.
Thats what i thought about the pre outs, they should be working all the time, and still can't get a clear answer from Sony so confused as everyone else about this.

What Sony? Thought it was the Yamaha A8A?

 

[Sly]

What Sony? Thought it was the Yamaha A8A?

Meant yamaha not sony.

 

[PENG]

That is better considering i'll get a lower noise floor although its a shame theres only 2 channels, like you mentioned though, will be good for 2 ch music.
Want the amp really because i'll have some power hungrey speakers, either kef r1's/1528's so wasn't expecting to much diffrence but covering bases, don't think the avr's amps will do them justice.
And was looking through a selection of xlr/xlr cables, monoprice do look appealing although dylan mentioned that they're rca/xlr's could be unreliable, forget why but their a decent company so definitley a good consideration.

I read that a customer of Dylan had issue with the Monoprice cables, but I had no issue with them with my Hypex and Purifi amps. To me, they are great for the price and if you buy from Amazon it will be easy to return them.

On the Yamaha, if you are sure you have make the corrections correctly then may be the unit has a defect.

By the way, if you are still deciding on which xlr to xlr cables to buy, then how do you know the xlr pre outs are not working?

 

[Sly]

I read that a customer of Dylan had issue with the Monoprice cables, but I had no issue with them with my Hypex and Purifi amps. To me, they are great for the price and if you buy from Amazon it will be easy to return them.

On the Yamaha, if you are sure you have make the corrections correctly then may be the unit has a defect.

By the way, if you are still deciding on which xlr to xlr cables to buy, then how do you know the xlr pre outs are not working?

Yeah i just read that maybe it was just a bad batch that were faulty, but didn't delve into it too much, someone else said build quality wasn't on par with the competition hence me looking elsewhere, and dylan recommended either worlds best cables/blue jeans (built to your specs) or cable matters, so picked cable matters. Heard decent things about monoprice so thats hopefully just a one off.
Crossing fingers on xlr ports, want to rule put thats its just the rca pre outs that might be buggy, but then like you say the whole reciever could be suffering from them.
Been looking at arc and it looks quite good and considering ypao was just about useless i'm thinking of getting an avm70, hopefully after the years its been out the bugs have been ironed out.
Will be a lot of trouble having the yamaha looked at when they won't even give me a straight answer as to whether you can power front 3 which should be straight forward.
In hindsight i could'nt really see this coming although its gonna be a lot of cash.