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Re: Scratchy noise from. ... Denon Power AMPLIFIER...
1-apply spray contact cleaner from radio shack to all volume controls of the amp and move them forward and backward-check your cables must be in good condition,otherwise change bad one with brand new one.
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To add a 2-channel amplifier to your Denon AVR 2307ci receiver, you can follow these general steps:
1. Determine the amplifier connection type: Check the specifications of your 2-channel amplifier and identify the available input and output options. Common connection types include RCA (analog) and speaker wire (for binding posts or terminals).
2. Identify the pre-out connections on your Denon AVR: Locate the pre-out connections on the back of your Denon AVR 2307ci receiver. These are typically labeled as "Pre Out" or "Preamp Out" and may be color-coded. You will need to find the pre-out connections for the front left and right channels.
3. Connect the RCA cables: If your amplifier has RCA inputs, use RCA cables to connect the pre-out connections of the Denon AVR to the corresponding inputs on the amplifier. Connect the left channel pre-out on the Denon to the left channel input on the amplifier, and do the same for the right channel.
4. Connect the speaker wires: If your amplifier uses speaker wire connections, connect the front left and right speaker outputs of the Denon AVR to the corresponding inputs on the amplifier using speaker wire. Make sure to observe the proper polarity (positive and negative) when connecting the wires.
5. Configure the Denon AVR settings: Access the setup menu of the Denon AVR by using the remote control or the front panel display. Navigate to the audio settings or speaker configuration section. Look for an option to enable "Preamp Mode" or "Preamp Outputs." Enable this option to ensure that the front left and right channels are redirected to the pre-out connections.
6. Set the amplifier to the correct input: If your amplifier has multiple inputs, select the input that corresponds to the connection from the Denon AVR.
7. Adjust volume and settings: After completing the connections, you may need to adjust the volume levels on both the Denon AVR and the amplifier. Use the Denon AVR as the primary volume control and adjust the amplifier's volume accordingly.
It's important to consult the user manuals for both your Denon AVR 2307ci and the 2-channel amplifier to ensure proper setup and compatibility. If you're uncertain about any specific steps or settings, it's advisable to consult the manuals or reach out to Denon customer support for assistance.
Yes, it is possible to add a Sumo amplifier to a Denon AVR (Audio/Video Receiver) system. The Denon AVR is designed to be the central hub for audio and video processing, providing amplification and routing signals to speakers and other audio devices.
To add a Sumo amplifier to your Denon AVR system, you can follow these general steps:
1. Determine the audio output options on your Denon AVR: Check if your Denon AVR has preamp outputs, which are typically labeled as "Pre Out" or "Main Out." These outputs are used to connect external amplifiers like the Sumo amp.
2. Identify the input options on the Sumo amplifier: Check the inputs available on the Sumo amplifier. It should have an input that matches the output from your Denon AVR. The most common connection is RCA, but there could be other options like XLR or optical.
3. Connect the Denon AVR to the Sumo amplifier: Use appropriate cables to connect the preamp outputs of your Denon AVR to the inputs of the Sumo amplifier. For RCA connections, you will need RCA cables with male connectors on both ends. Make sure to match the left and right channels correctly.
4. Configure the Denon AVR: Once the connections are made, you may need to configure the Denon AVR to use the external amplifier. Check your Denon AVR's manual or menu settings to disable the internal amplifier for the connected speakers. This will ensure that the AVR sends the audio signal to the Sumo amp instead.
5. Set up the Sumo amplifier: Follow the instructions provided with the Sumo amplifier to set it up correctly. This may involve adjusting gain levels, selecting input sources, and configuring any other settings specific to the Sumo amp.
6. Test and enjoy: Once everything is connected and configured, test the system by playing audio through your Denon AVR. The audio signal should be amplified by the Sumo amplifier and sent to your speakers, providing enhanced power and performance.
It's worth noting that the specific steps and options may vary depending on the models of your Denon AVR and Sumo amplifier. It's always recommended to consult the user manuals for both devices and, if needed, seek assistance from an audio professional or the manufacturers' support teams for detailed guidance tailored to your specific equipment.
Strange noises can come from your amplifier or the sub itself. The most likely cause of the strange noise is the speaker just before it dies! If you have been using the sub-woofer at high volume levels then you probably have damaged it. Try testing the sub-woofer using a multimeter(on ohms setting) it should give you a reading from 8 to 4 ohms. Sometimes they may give readings as low as 1 ohm. When testing the speaker/sub you should hear a soft scratchy, thumping or clicking sound. This indicates that the speaker may still be working. If you don't have a multimeter try a 1.5 volt battery (say a AA), DONT USE HIGHER VOLTAGE BATTERIES they may damage the speaker! You will hear a clicking, scratching etc sound from the speaker which may indicate that it is still OK. If the speaker seems OK the problem may be in the amplifier, which I suggest you bring to a professional repairer.
When buying speakers and amplifiers make sure the power handling of the speaker is equal to or greater than the amplifier output power. This should stop speakers from getting damaged. Make sure the speaker and amplifier specifications are rated in the same manner ie RMS PMPO Peak. A 100 Watt PMPO speaker will not survive the output of a 100Watt RMS amplifier!
Your problem is either in the amplifier board (I can repair these) or the cable going to the cartridge on the tone arm (I stock these). When the machine is making the humming noise, unplug the cable from the tone arm at the top left side of the amplifier...If the sound goes away, I'd suspect the cable. If the sound continues, I'd suspect the amplifier board. Please fee free to email for more assistance, [email protected].
usually, it is background noise. Scratchy background noise. Gets worse the louder I turn up the volume. I ran a test on all the channels and it seemed to be the subwoofer channel. I've unpluged the subwoofer but that didn't help. I have also noticed that my receiver doesn't turn up nearly as loud as it used. I usually watch DVDs at a volume level of about 15 on my Denon and that's quite loud. But now, 15 isn't that loud at all. I went to Best Buy where I bought all of this equipment and they immediatly told me it was suge protector issue and wanted to sell me a high-end surge protector. Perhaps they are right but not sure why it began rather suddenly. Probably not helping you much.
Sounds like its time to change the needle [Stylus ] , there are a few types But the two most common are Saphire and Diamond Stylus pay the extra and get a diamond if you can , Hope this helps
You have dirty potentiometer (pot) controls. Unfortunately to clean them properly you will have to remove the amplifier from the wooden cabinet. If you're not comfortable doing this then send it to a local musical instrument/amp repair shop.
1) Disconnect AC power (duh)
2) After carefully documenting all connections, unplug/disconnect speaker, footswitch and the reverb wires on the back of the amplifier.
3) Look for four screws along top of wood cabinet that hold the inverted amplifier in place (thank you Leo Fender). Normally there is a wood block that will prevent the amplifier chassis from dropping down as the four screws are removed BUT assume nothing.
4) When amplifier is completely free from the cabinet top, carefully slide it out the backside.
5) Up on the bench avoid the filter capacitors (look like a C size battery) in the amplifier chassis located over by the AC power cord as they may still hold an electrical charge.
6) Look for the three terminals exiting each pot along the front of the amplifier chassis. Using a PLASTIC SAFE tuner/control cleaner/lube (Radio Shack Model 64-4315/Catalog #64-4315) aim the extension nozzle into the open area where the three terminals enter the pot.
7) Turn the pot knob CW/CCW while dispensing a small amount of.the control cleaner. Repeat with all controls.
8) Re-assemble (don't forget to reconnect all the wiring from step #2) and download a couple of new guitar TAB's for proper testing inspiration.....Glen :-)
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