Question about Denon AVR-2105 Receiver
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Posted on Jan 02, 2017
SOURCE: Main Zone not Working
VERY nice system! But, it practically needs a cooling system of its own! So, the very FIRST thing to check is to make certain there is plenty of OPEN SPACE around the receiver. SECOND: Make certain ALL of your speakers have an IMPEDENCE of 8 OHMS. (Denon says 6 ohms is okay; I still recommend 8.) Virtually all speakers of even modest quality will include this specification on a label on the back of the speaker. You CANNOT run more than (2) TWO speakers with 4 OHMs impedence on ANY amplifier (technical discussion too long!) [NOTE: Your Denon's internal overload protection system is designed to do precisely what it is doing, to prevent permanent damage. In general, shutting-down, then re-powering the system after several minutes usually resets it. However, if there is a problem, this will continue, AND YOU RUN THE RISK OF DOING SERIOUS DAMAGE TO THE MACHINE!] Before you take this monster in for service, there is one more "test": check for shorted and/or mis-connected/disconnected speaker cables/wires. With as many as 22 speakers connected, this could take some time. But it MIGHT be worth it. 1) Visually inspect connections at the receiver and speakers first. You might find something obvious! 2) If everything looks okay, then disconnect ALL of the speakers; and reconnect and test them one at a time (at relatively low volume.) For example, reconnect the left front speaker, test the system; THEN add the left front, test the system,and so on, ADDING one more speaker each time - FIRST MAKING SURE EACH OF THEM HAS AN IMPEDENCE OF AT LEAST 8 OHMS! IF there is a short (or bad speaker) this will help isolate it. Denon is a very respected brand, and will give you a LIFETIME of service. Hopefully one of these simple fixes will work for you. GOOD LUCK!
Posted on Jul 18, 2007
PUT YOUR OUTDOOR SPEAKERS INTO SURROUND BACK SPEAKER "PORTS"AS YOU CALL THEM GEMMEG THEN GO TO UR SET UP MENU AND SWITCH ON ZONE 2 OR IT MAY BE AS SIMPLE AS A SWITCH ON THE FRONT OF YOUR AMP.IFF YOU STILL HAVE NO SOUND YOU MAY HAVE 2 TURN THE VOLUME UP FOR ZONE 2.ALSO SOME AMP NEED TO HAVE THE SOURCE ; IE WHAT U WANT 2 PLAY INTO ZONE 2 FOR EXAMPLE YOUR CD PLAYER.HOPE THIS HELPS ,IFF NOT GET BACK 2 ME 2 C IFF I CAN DO ANYTHING ELSE.
Posted on May 20, 2008
It sounds like you have a bad speaker on the zone 2, or you have the speakers connected improperly.
When you engage the zone 2 a relay clicks and the speakers then become part of the amplifiers circuit.
If the problem was in the amplifier, it would go into protect mode without even having speakers connected to it.
If the speakers all check good, you most likely have the wrong type of speakers, meaning the impeadance is too low, or you have too many speakers connected to it.
On the back of the Denon, you will see right around the speaker output jacks, what ratings the speakers should be. If I remember correctly, it says 6 ohms or more when using only "A" or "B", and it says 12ohms or more for "A" + "B".
If you have two 8 ohm speakers on the same speaker jack you now have a 4 ohm load. That is below the ratings and can cause the amp to shut down (go into protect). Since your amp shuts down right away, I think you have a bad speaker or way too many speakers connected.
I have seen many times when people will connect 2 or 4 speakers to the one of the outputs that are designed for only 1 speakers.
If you are using too many speakers you will need a speaker distribution box. It has a resistor network built into it so the amp never sees a lower impeadance than what it is designed for.
You can connect 4, 6 or 8 speakers to one set of outputs designed for 2 speakers. You do loose a lot of power to the speakers, but it is better than blowing up your amplifier.
If I can be of any further help, let me know.
Posted on Jun 22, 2008
I have the denon as well two zones. 5 speakers inside and 2 speakers outside- can you play both zones at once? meaning can i watch tv in the 5 zone area inside. And play my IPOD in the outside speakers at the same time? PLEASE HELP! thx
Posted on Aug 06, 2008
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