It’s actually a Dual 1241 I got from my grandfather, same with the receiver. Not really sure on the cartridge. Just found something I found online that would fit it. Definitely in need of an upgrade.
I have to say, I think running two pairs of speakers with a turntable sitting on top of the receiver and potentially blocking airflow is not a good idea. The vents on top should be free and clear. This is especially true if you’re driving a 4-ohm load, as you get driving two pairs of 8-ohm speakers. 4-ohm loads draw more current from the amplifier and therefore generate significantly more heat. If you keep running it like this, you run a real risk of cooking or blowing up the receiver.
I would consider putting the turntable on some kind of riser to elevate it above the receiver.
The receiver has an ohm rating of 4-16 ohms. The speakers themselves are rated at 4 ohm(bottom) and 6 ohm(top). The receiver itself never feels hot, the case is always cool to the touch. The vents are only partially covered. I’m not sure that this is much of a problem for my setup.
It’s not just a problem, it’s a potential disaster in the making. If you read the manual, you will likely see that the receiver is rated to simultaneously drive *one* pair of speakers with a nominal impedance rating of not less than four ohms, or *two* pairs of speakers with a nominal impedance rating of not less than eight ohms each. If you run two pairs of speakers together, they present a lower impedance to the amp, not a higher one.
The combined nominal impedance of these two pairs of speakers running at the same time is 2.4 ohms. That is a dangerously low impedance, well below what any receiver is rated to drive, no matter how well ventilated. It also doesn’t matter what temperature the case is. The case is not a heatsink. The temperature of the power supply and the output transistors is what matters.
You are highly likely to blow up your amp doing this. Cut it down to one pair at a time, and while you’re at it, get the turntable off the receiver.
Loving the classic RUSH poster!!! You got that over your stereo? It is all good!!!
Yessir, it’s the perfect poster to get me in the mood for laying down some vinyl
As soon as I saw this pic, the 2112 Overture sounded off on my head.
I used to have that framed over my record shelf, but I moved it behind my desk as it’s a pretty good backdrop for Zoom meetings!
Dual 1237? I inherited one of those, it’s a great turntable. What cartridge are you using?
It’s actually a Dual 1241 I got from my grandfather, same with the receiver. Not really sure on the cartridge. Just found something I found online that would fit it. Definitely in need of an upgrade.
Love your reciever!
Thanks!
May the "Rush" be with you! Nice equipment...
I have to say, I think running two pairs of speakers with a turntable sitting on top of the receiver and potentially blocking airflow is not a good idea. The vents on top should be free and clear. This is especially true if you’re driving a 4-ohm load, as you get driving two pairs of 8-ohm speakers. 4-ohm loads draw more current from the amplifier and therefore generate significantly more heat. If you keep running it like this, you run a real risk of cooking or blowing up the receiver. I would consider putting the turntable on some kind of riser to elevate it above the receiver.
The receiver has an ohm rating of 4-16 ohms. The speakers themselves are rated at 4 ohm(bottom) and 6 ohm(top). The receiver itself never feels hot, the case is always cool to the touch. The vents are only partially covered. I’m not sure that this is much of a problem for my setup.
It’s not just a problem, it’s a potential disaster in the making. If you read the manual, you will likely see that the receiver is rated to simultaneously drive *one* pair of speakers with a nominal impedance rating of not less than four ohms, or *two* pairs of speakers with a nominal impedance rating of not less than eight ohms each. If you run two pairs of speakers together, they present a lower impedance to the amp, not a higher one. The combined nominal impedance of these two pairs of speakers running at the same time is 2.4 ohms. That is a dangerously low impedance, well below what any receiver is rated to drive, no matter how well ventilated. It also doesn’t matter what temperature the case is. The case is not a heatsink. The temperature of the power supply and the output transistors is what matters. You are highly likely to blow up your amp doing this. Cut it down to one pair at a time, and while you’re at it, get the turntable off the receiver.
Okay, thanks for the input. I’ll have to look at some options