Q: How to increase the volume of the Surround zones on the Auna AMP4000 DAB?

The Auna AMP4000 DAB has 4 independent zones (Z1 to Z4) with individual volume control. Zones 3 and 4 are typically used for surround speakers. Here’s how to increase their volume: Via the front panel Press the ZONE button on the front of the device to select zone 3 or zone 4 (your Surround zones) Turn the MULTI knob to increase the volume of that zone Repeat for the other surround zone if necessary Via the remote control Press the Z3/Z4 button to select the desired zone Use the +/- buttons to increase or decrease the volume Each zone has its own speaker output with 2 screw terminals (impedance 6-16 Ω). For optimal positioning of the surround speakers, place them about 2 meters above the floor, behind your listening area.

Q: How to connect external speakers to the Auna AMP4000 DAB?

The Auna AMP4000 DAB has 4 independent zones (Z1, Z2, Z3, Z4), each equipped with terminal blocks to accommodate a pair of stereo speakers. Here’s how to proceed: Wiring Steps Turn off the device before connecting the speakers Check the impedance of your speakers: they must be between 6 and 16 Ω Observe the polarity : connect the red cable (+) to the positive terminal and the black (-) to the negative terminal of each block. Reversing them causes sound distortion Connect one stereo pair per zone : the left and right speakers of the same pair must be connected to the same zone (Z1, Z2, Z3, or Z4) to maintain the stereo effect Isolate the bare wires : ensure that the exposed wires do not touch each other or contact any metal parts of the device Turn the amplifier back on You can independently manage the volume of each zone using the provided infrared remote control. Also, make sure to maintain at least 8 cm of space around the device and not block the ventilation openings.

Q: Does the Karaboom 100 Sing have a button to set the time?

Yes, the Karaboom 100 Sing has a TIME button. It is located on the main control panel. To set the time, follow these steps: Press the TIME button - the numbers on the display will start blinking Use the forward and backward buttons (or the arrows) to adjust the hours and minutes Confirm your input by pressing TIME again This device also has an alarm function that uses the same time settings: you can schedule automatic playback at the set time using the ALARM button in standby mode.

Question 1

How to connect a Bluetooth device to the Auna Blackbird?

Accepted Answer

Here is the complete procedure to connect a Bluetooth device to your Auna Blackbird:

Press the BT button (marker 30) to activate the Bluetooth connection. The BT LED (marker 31) will start blinking, indicating that Bluetooth mode is active.
Go to the Bluetooth settings on your smartphone or other device, then search for and select 'Auna Blackbird' to initiate pairing.
Once paired, your device is connected to the mixer and can send audio via Bluetooth.
Adjust the audio volume with the USB/BT Volume button (marker 29) located on the front of the mixer.

If you have connection difficulties, ensure that the BT LED is blinking and move closer to the mixer. The Bluetooth antenna (marker 4) should have a clear line of sight for better range.

Question 2

How to navigate USB folders without a remote control?

Accepted Answer

On the Auna Connect CD, you can navigate USB folders using the front panel controls without needing the remote control.

Steps:

Plug your USB stick into the USB port of the device. Menus will automatically be created from the folders present on the stick.
Use the navigation knob (wheel) located on the front panel to browse through folders and files. Turn the knob to scroll through the items.
Press the OK button (the central button of the knob) to confirm your selection and enter a folder or start playing a file.
Use the Back button to return to the parent folder.

The TFT screen will display the names of folders and files as you navigate. You have all the necessary controls on the front panel to explore your USB content without relying on the remote control.

Question 3

How to decrease the brightness of the screen on the Nizza radio?

Accepted Answer

To decrease the brightness of the LCD screen on your Auna Nizza radio, simply press the DIM button on the remote control.

Each press of the DIM button gradually reduces the brightness level of the screen. Continue pressing until you reach the desired lighting level. The LCD screen features adjustable backlighting that allows you to set the brightness according to your preferences.

Question 4

How to increase the volume of the Surround zones on the Auna AMP4000 DAB?

Accepted Answer

The Auna AMP4000 DAB has 4 independent zones (Z1 to Z4) with individual volume control. Zones 3 and 4 are typically used for surround speakers. Here’s how to increase their volume:

Via the front panel

Press the ZONE button on the front of the device to select zone 3 or zone 4 (your Surround zones)
Turn the MULTI knob to increase the volume of that zone
Repeat for the other surround zone if necessary

Via the remote control

Press the Z3/Z4 button to select the desired zone
Use the +/- buttons to increase or decrease the volume

Each zone has its own speaker output with 2 screw terminals (impedance 6-16 Ω). For optimal positioning of the surround speakers, place them about 2 meters above the floor, behind your listening area.

Question 5

Why is the right speaker connected to the same amplifier not producing any sound?

Accepted Answer

This problem usually occurs when the right speaker is not properly configured or connected. Here are the checks to perform on your Auna AMP4000 DAB:

1. Check the terminal connections

The Auna AMP4000 DAB has 4 zones, each with 2 terminal clips for the speakers. Make sure that:

The cables of the right speaker are properly inserted into the terminal clips (clips must be tightly secured)
The cables are not detached or partially inserted
The terminals themselves are not damaged or blocked

2. Check the polarity of the cables

The impedance must be between 6 and 16 Ω. Also check the polarity by following the color code:

Red (+) cable connected to the positive terminal
Black (-) cable connected to the negative terminal

A reversal of polarity will prevent the speaker from functioning properly.

3. Check the channel balance

Access the balance settings via the MENU button and the MULTI knob. Ensure that the balance control is not completely shifted to the left, which would prevent the right channel from producing sound.

4. Check the zone volume

Press the ZONE button (front panel) to select the zone corresponding to your right speaker (Z1 to Z4), then adjust the volume with the MULTI knob. You can also use the Z1/Z2 or Z3/Z4 buttons on the remote control with the +/- to increase the volume.

After these checks: turn off the device, leave it for 10 seconds, then turn it back on. Test the sound with a different source (DAB radio, auxiliary, or Bluetooth) to see if the problem persists.

Question 6

Should the left and right speakers of the same pair be connected to the same zone or to different zones?

Accepted Answer

No, a pair of stereo speakers (left and right) must always be connected to the same zone.

The Auna AMP4000 DAB has 4 independent zones (Z1, Z2, Z3, Z4), each equipped with its own speaker outputs with individual volume control. Each zone has speaker terminals with a required impedance of 6-16 Ω.

Correct Configuration

Connect the left speaker to the left terminals of the same zone
Connect the right speaker to the right terminals of that same zone

The 4 zones are used to connect different pairs of speakers in different rooms (for example: Zone 1 in the living room, Zone 2 in the kitchen, Zone 3 in the bedroom, Zone 4 in the office).

Why no separation

If you connected the left speaker to one zone and the right to another, you would lose the stereo effect in the first zone and the audio would be out of sync. Also, make sure that the polarity of the cables is correct (connect “+” to “+” and “-” to “-”) to avoid sound distortion.

Question 7

How to connect external speakers to the Auna AMP4000 DAB?

Accepted Answer

The Auna AMP4000 DAB has 4 independent zones (Z1, Z2, Z3, Z4), each equipped with terminal blocks to accommodate a pair of stereo speakers. Here’s how to proceed:

Wiring Steps

Turn off the device before connecting the speakers
Check the impedance of your speakers: they must be between 6 and 16 Ω
Observe the polarity: connect the red cable (+) to the positive terminal and the black (-) to the negative terminal of each block. Reversing them causes sound distortion
Connect one stereo pair per zone: the left and right speakers of the same pair must be connected to the same zone (Z1, Z2, Z3, or Z4) to maintain the stereo effect
Isolate the bare wires: ensure that the exposed wires do not touch each other or contact any metal parts of the device
Turn the amplifier back on

You can independently manage the volume of each zone using the provided infrared remote control. Also, make sure to maintain at least 8 cm of space around the device and not block the ventilation openings.

Question 8

My car radio's Bluetooth says connected but there's no sound

Accepted Answer

Audio problem despite an established Bluetooth connection

If your phone indicates that it is connected to the Bluetooth of the Auna MD210 BT but no sound is coming from the speakers, here are the checks to make:

1. Check that the device is in Bluetooth mode

Make sure that the car radio has switched its input source to Bluetooth. The indicator light or display should show that the "Bluetooth" mode is activated (and not another mode like USB, SD, AUX, or radio).

2. Start the music on your phone

Once paired via Bluetooth, it is your phone that sends the music. Explicitly start a song, a playlist, or a video on your phone - the sound should then come out of the car radio's speakers (4 x 50W).

3. Check the volumes

Three volumes need to be turned up:

The volume of the Auna MD210 BT car radio itself
The volume of your phone
The music application on your phone (some have an internal volume slider)

Also, check that neither the car radio nor the phone is in silent mode.

4. Reset the Bluetooth pairing

If the problem persists:

On your phone, go to Bluetooth settings and select "Forget device" for the Auna MD210 BT
Press the Bluetooth button on the car radio to restart the pairing
Select "Auna MD210 BT" again from your phone's Bluetooth list

After these steps, the sound should work properly.

Question 9

How to listen to online radio on the Auna Connect 120 MKII?

Accepted Answer

To listen to online radio on your Auna Connect 120 MKII, you need to access the Internet Radio mode. Here are the steps:

Connecting to your Wi-Fi network

Press the HOME button on the device or remote control.
Navigate to the Internet Radio menu using the navigation keypad.
The device will prompt you to connect to an available Wi-Fi network.
Select your network and enter your password if necessary.

Listening to Internet stations

Once connected to Wi-Fi, you can access a catalog of online radio stations. The Connect 120 MKII uses the UNDOK app for advanced station management. You can:

Browse stations by categories and countries via the 2.8" LCD screen.
Save your favorite stations using the Presets 1 to 5+ buttons.
Use the UNDOK app on your smartphone or tablet for easier station selection.

If you encounter problems

If you cannot listen, check that:

Your device is properly connected to Wi-Fi (checkable via the menu or the Wi-Fi icon on the screen).
Your Internet connection is working correctly.
The selected station is accessible and online.

Question 10

Does the Karaboom 100 Sing have a button to set the time?

Accepted Answer

Yes, the Karaboom 100 Sing has a TIME button. It is located on the main control panel.

To set the time, follow these steps:

Press the TIME button - the numbers on the display will start blinking
Use the forward and backward buttons (or the arrows) to adjust the hours and minutes
Confirm your input by pressing TIME again

This device also has an alarm function that uses the same time settings: you can schedule automatic playback at the set time using the ALARM button in standby mode.

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