2. amps-preamps
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Integrated or Receiver?

That is the question.

As my luck would have it, my near 30 year old Denon PMA520 integrated amp is apparently on its way out.  I've already spent $150 to fix one problem only to have one channel all but vanish (can hear some high end audio but it is faint) and the other channel cuts in and out.  Since I had the unit cleaned just a few weeks ago and the noise that had cropped up in deep bass, I would have to believe this is another problem and would require additional servicing at additional cost.

The way I see it, this is throwing good money after bad.  Will probably scrap this thing and will buy something new.

Since my budget is going to be under $400 right now thanks to a slew of other expenses that take priority, I am wondering if I should just settle for a basic entry level amp like the Yamaha 301 or Onkyo 9050 or purchase a Receiver from Yamaha or some other company that is fairly inexpensive and use that for a couple of years until I can buy a better integrated amp when I should have more money to budget for it.

Any thoughts on this?
will62
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cleeds
6,060 posts
 
will62
Sounds like Bi wiring is not the formal definition of using two pairs of speakers at the same time with one amp
Correct. Biwiring is running separate cables for LF and HF from a single amplifier to a speaker that has separate connections for each. It is often confused with biamping, which is using a separate amplifier channel for each LF and HF speaker input.
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mesch
3,529 posts
 
Difficult to find a budget integrated amplifier that will effectively drive 2 pairs of speakers at the same time. Both speaker pairs would have to be 8ohms or better across the frequency range. Few are. Many would have connections for 2 speaker pairs with a selector that would allow you to choose a speaker pair to listen to individually.  My cambridge Audio 540C will allow this. I would not rum 2 pairs at the same time however. 

If an integrated has pre outs you could run additional amplifier to the 2 pair of speakers. If the additional amp has gain controls you could then adjust the output of the 2nd speaker pair relative to the 1st pair. 

will62 OP
177 posts
 
Thanks for the added info on the subject of running four speakers.  Got away with it on the Dayton amp but won't even think of trying it now with the real amps.

Oddly enough, I just got home from work and plugged in my headphones into the Denon PMA520 and started to play a cassette tape.  Suddenly it is functioning perfectly again.  Last night and yesterday afternoon I lost one channel but the other worked and then later in the evening I lost both channels.  No audio at all.  But now this evening it is working perfectly.  

Weird.  Will still shop for a new integrated or receiver but will hope in the meantime this Denon will last at least a few months.  It would allow me to save more money and budget more for a better amp.
helomech
1,758 posts
 
Yes, I am looking at the new Yamaha stuff now.

One problem I am running into is trying to find a amp or receiver that will allow me to Biwire my 6 ohm Mirage OM 10's.  Every amp or receiver I've looked at can't handle the lower impedance except when the OM 10's are not Biwired.  My Castle's are 8 ohm and don't present that problem

The Yamaha can handle it. I've used both sets of terminals to bi-wire 4 ohm speakers and it didn't break a sweat. In fact, you want to leave the impedance switch in the 8 ohm position when running such a configuration. 

Check out this video:

http://www.audioholics.com/audio-amplifier/impedance-selector-switch-1

And this one:

http://www.audioholics.com/amplifier-reviews/yamaha-a-s801-amplifier-review

BTW, the amp section is essentially the same between the 501 and 801.
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