AAL Impedence Specifications

[aeroin]

Hello everyone!

I like to listen to my music pretty loud. Over the past couple of years I have fried a couple of Sony Receivers. I got sick of buying a new Sony receiver every year so I recently bought a YAMAHA HTR-5830 receiver. As I was hooking it up I began to wonder about the impedence of the speakers I have been driving and started thinking maybe Sony wasn't at fault on this one...

I am driving four AAL speakers - two are on channel "A" and two are on "B". I bought one pair myself back in 1986 and I was given the other pair which may be just as old. I have always been happy with the sound I get from them.

The "A" pair I bought nearly 20 years ago are 15 inch 4-way speakers and I found a tag on back of one that says they are model # 6000. There is no information printed directly on the spaekers themselves.

The "B" pair I was given are 3-way speakers. There is some copy printed on the front that says they are model # 103 , 150 watt speakers.

Neither pair says anything about their impedence. I have tried to look up AAL on the web. Near as I can tell they have been bought by MTX and offer no specs for older AAL speakers. However, every model they currently offer is an 8 ohm speaker...

Anyway - What do you all think?

Would any of my speakers be less than 8 ohms?

Where/how could I find out/determine their impedence?

Am I asking too much of my Receiver?

I thank you in advance for you valuable opinion and sage wisdom..


Aeroin

 

[mtrycrafts]

Hello everyone!

I like to listen to my music pretty loud. Over the past couple of years I have fried a couple of Sony Receivers. I got sick of buying a new Sony receiver every year so I recently bought a YAMAHA HTR-5830 receiver. As I was hooking it up I began to wonder about the impedence of the speakers I have been driving and started thinking maybe Sony wasn't at fault on this one...

I am driving four AAL speakers - two are on channel "A" and two are on "B". I bought one pair myself back in 1986 and I was given the other pair which may be just as old. I have always been happy with the sound I get from them.

The "A" pair I bought nearly 20 years ago are 15 inch 4-way speakers and I found a tag on back of one that says they are model # 6000. There is no information printed directly on the spaekers themselves.

The "B" pair I was given are 3-way speakers. There is some copy printed on the front that says they are model # 103 , 150 watt speakers.

Neither pair says anything about their impedence. I have tried to look up AAL on the web. Near as I can tell they have been bought by MTX and offer no specs for older AAL speakers. However, every model they currently offer is an 8 ohm speaker...

Anyway - What do you all think?

Would any of my speakers be less than 8 ohms?

Where/how could I find out/determine their impedence?

Am I asking too much of my Receiver?

I thank you in advance for you valuable opinion and sage wisdom..
Aeroin

You may very well be asking too much from your receivers, unknown impedance AND, unknown sensitivity as that is an important factor determining how loud 1 watt of power will be. Then, on top of it, you drive it hard all the time, it seems. Not a good combination and a good probability why you are frying and will fry the next unit too. And on top, you are driving two pairs. At the same time? That in itself will or could halve the impedance.

Without knowing those two parameters, impedance and sensitivity, who knows.

 

[AVRat]

I concur with mtrycrafts. If you are only using the receiver for music then wire up your "B" set to the side surrounds and run the receiver in multi-channel mode. This way they are running off separate amps.

 

[Sheep]

First off, don't run them on the B connection. If they are 8 ohm, you are now making the amp drive 2, 4 ohm channels. The A and B come from the same amp. Its no different then hooking up 2 speakers for 1 pair of binding posts.

If you have your rear channels open, hook them up on there, and boost the level all the way up, or to what level the fronts are at. This way, you are not dropping the impedance in half.

SheepStar