ION iPA76A Block Rocker

Specifications
- Model: iPA76A
- Battery Type: Rechargeable lead-acid
- Input Types: 1/4″ Microphone, 3.5mm Auxiliary
Product Usage Instructions
Battery Usage Recommendations
For optimal battery life:
- Charge fully before first use and before storing.
- It’s safe to keep the system plugged in to maintain the battery.
- Avoid leaving the battery uncharged for more than 6 months to prevent capacity loss.
Repair and Disposal
If the battery fails to charge:
- Check the fuse near the power cable input.
- If fuse is damaged, replace it.
- Battery replacement details can be found in the Technical Specifications section of the manual.
- Contact Parts Dept. for warranty and parts inquiries.
- Recycle or dispose of the unit properly according to local regulations.
Connection Instructions
The top panel features:
- Microphone Input with Volume Control (1/4″)
- Auxiliary input (3.5mm)
- Bluetooth Button for device pairing
- Master Volume Control for adjusting overall volume
Introduction
- Make sure all items listed in the Box Contents are included in the box.
- READ THE SAFETY & WARRANTY MANUAL BEFORE USING THE PRODUCT.
- MAKE SURE THE BATTERY IS COMPLETELY CHARGED PRIOR TO FIRST USE FOR MAXIMUM BATTERY LIFE.
- Study the connection diagram.
- Ensure the Master Volume on Block Rocker is at zero.
- Connect your devices.
- Raise the volume to a comfortable level.
- Return the Master Volume to zero when you are finished using Block Rocker.
Box Contents
- Block Rocker
- Microphone with mic cable
- 3.5mm (1/8”) to 3.5mm (1/8”) cable
- Power Cable (standard IEC)
- Quick start Guide
- Safety & Warranty Manual
Support
For the latest information about this product (system requirements, compatibility information, etc.) and product registration, visit ionaudio.com.
Rechargeable Batteries
Rechargeable lead-acid batteries are the same type used in automobiles. As with your car battery, how you use this battery has a significant impact on its lifespan. With proper use and treatment, a lead-acid battery can last for years. Here are some recommendations for getting the longest life from the internal battery.
General Usage
Charge fully before use.
Charge fully before storing.
Storage
For best product longevity, do not store at exceedingly hot (greater than 90°F / 32°C) or exceedingly cold (less than 32°F / 0°C) temperatures.
It is acceptable to leave your sound system plugged in. This will not overcharge the battery. If you leave the battery level low and do not charge it for 6 months, it may permanently lose capacity.
Repair
If the battery fails to charge, check the fuse near the power cable input. If the fuse is not intact, please replace it. The battery can be replaced (details in the Technical Specifications). For Warranty and Parts, contact the Parts Dept. at 401-658-3743 or by visiting ionaudio.com.
Disposal
Bring the unit to a recycling center or dispose of in accordance with local ordinances.
Connection Diagram
Items not listed under the Box Contents are sold separately.

Features

- Microphone Input with Volume Control (1/4″): This mono input accepts a 1/4″ input such as a microphone, guitar, or other musical instrument.
- Auxiliary input: This stereo 3.5mm (1/8”) input can be used to connect a CD player, MP3 player, or other audio source.
- Bluetooth Button: Press the Bluetooth button to disconnect a paired Bluetooth device.
- Bluetooth Icon: The Bluetooth icon will not be lit when Block Rocker is first powered on (unless it was previously paired with a device). The Bluetooth icon will be lit solid when a device is paired to Block Rocker.
- Master Volume Control: This adjusts the speaker’s main mix volume, which includes the Microphone Input, Auxiliary Input, Radio, and the audio of a paired Bluetooth device.
- AM/FM Presets: Store a favorite radio station and quickly tune to a preset radio station. There are 6 numeric positions for the AM stations and 6 numeric positions for the FM stations.
To add a preset:- Select either the AM or FM band and then use the Radio buttons to select the desired radio station.
- Press and hold a numeric preset button to assign the current station to that preset number. The display will show “SAVE” to show the station has been saved. To use an added preset, tap a preset number once lightly to go to the stored radio station.
- Radio Selector: This button sets the Radio to AM or FM or turns the radio off.
- Decimal Icon: The decimal icon will be lit when Block Rocker is powered on. The decimal icon will not be lit when Block Rocker is powered off.
- Display: Displays the current radio station, battery status, and Bluetooth status.
- Charging Indicator: With the battery charging indicator, when the power cable is connected, movement of the top battery segment shows the battery is charging. When fully charged, all battery segments will be lit without blinking. When the power cable is disconnected, the battery segment shows the level of the battery.
- Lightning Bolt Icon: The lightning bolt icon will illuminate when the IEC power cable is connected to wall power.
- Tune/Track Buttons: Tap these buttons to tune in a radio station or go to the previous/next track on a Bluetooth connected device. To “seek” (jump to the next available station), hold either button down for a few seconds until it starts to seek a station. The unit will remember the last station it was on and start at that station when powered off and on again.
- Play/Pause: Press to play or pause a track from a connected Bluetooth device.
- USB Charging Port: Connect your device’s charge cable here to charge it. USB charging only functions when the unit’s power is turned on.
Note: To charge smartphones and tablets faster, put the device’s screen to sleep. - Antenna: Adjust this FM antenna to get the best radio reception. Fold this down when not using the radio and when moving the unit.
- NFC (near-field communication): Touch and briefly hold your supported and enabled device to the NFC logo to pair the device.
- Power Cable Input (IEC): Insert the included power cable here to charge the unit. Note that the Block Rocker can be used with the power cable while it simultaneously charges the battery.
- Power ON/OFF Switch: Turns Block Rocker on or off. Please note that while Block Rocker is connected to a power source, it does not need to be powered on to charge the battery. When the power is on, the display will show the decimal icon or your current radio station.

Pairing a Bluetooth Device
- Turn on your Bluetooth device.
- Power on Block Rocker. If you have previously connected to another Bluetooth device, Block Rocker will reconnect. To disconnect pairing if the Bluetooth icon is lit solid, press and release the Bluetooth button.
- Navigate to your Bluetooth device’s setup screen, find “Block Rocker” and connect.
Note: If your Bluetooth device prompts for a pairing code, enter “0000”. - To disconnect pairing while the Bluetooth icon is lit solid, press and release the Bluetooth button.
- To connect to another Bluetooth device, repeat steps 3.
Note: Maximum range will be achieved when using devices with Bluetooth 4.0 or higher.
Pairing a Bluetooth Device Using NFC
NFC (near-field communication) allows data exchange from devices, such as pairing, by gently bumping them together. Check in your device’s manual to see if this feature is supported.
To use NFC to pair with Block Rocker:
- In order to use NFC, your device must be turned on and unlocked.
- Enter your device’s Settings menu and check that NFC is turned On (one time step).
- Power on Block Rocker.
- Touch and briefly hold your device to the NFC logo.
- Follow the pairing instructions that appear on your phone. If a passcode is required, enter “0000”.
- To unpair, gently bump your device against the NFC logo located on Block Rocker’s top panel.
To use the free Block Rocker app, navigate Google Play on your Android device or the App Store on your iOS device, and search for ION Block Rocker. This app provides EQ, sound effects, and more!
Troubleshooting
- If the sound is distorted: Try lowering the volume control of your sound source, musical instrument, or microphone. Also, try to reduce the overall volume of Block Rocker using the Master Volume knob.
- If there is too much bass: Try adjusting the tone or EQ control on your sound source to lower the bass level. This will allow you to play the music louder before clipping (distortion) occurs. You can also control EQ using free ION Block Rocker app for iOS and Android. You can also control EQ using the free ION Block Rocker app for iOS and Android.
- If there is a high-pitched whistling noise when using microphones: This is probably feedback. Point the microphone away from the speaker.
- If there is poor AM reception: To adjust AM reception, move entire unit.
- If you can’t hear the microphone over the music volume: Turn down the music volume from your source.
- If you can’t play music from a flash drive: The USB port is only for charging USB devices.
Technical Specifications
| Dimensions (Length x Width x Height) |
11″ x 15″ x 17.25″ 279 mm x 381 mm x 438 mm |
| Weight | 23.25 lbs. 10.56 kg |
| Tweeter | 3” (76 mm) tweeter |
| Woofer | 8” (203 mm) woofer |
| Output Power | 50 W (peak) |
| Frequency Response (Aux) | 65 Hz-20 kHz (+3 dB) |
| Supported Bluetooth Profile | A2DP, AVRCP |
| Bluetooth Range | Up to 100′ / 30.5 m * |
| Microphone Type | Dynamic microphone |
| Aux Input | 3.5mm (1/8”) line-level |
| Battery Type | 12V 5.0Ah SLA |
| Battery Dimensions (Depth x Width x Height) |
2.8” x 3.5” x 4” 70 mm x 90 mm x 101 mm |
| Battery Life | Up to 50 hours ** |
| Power | Input voltage: 100-240V~ 50/60Hz, 50W |
| Fuse Type | T1AL 250V |
| Charge Port | USB; +5V, 1A |
| Radio Frequency Range | US: EUROPE: JAPAN: AM 520 – 1710 kHz AM 522 – 1629 kHz AM 520 – 1710 kHz FM 87.5 – 108 MHz FM 87.5 – 108 MHz FM 75.5 – 90.5 MHz |
Specifications are subject to change without notice.
- Bluetooth range is affected by walls, obstructions, and movement. For optimal performance, place the product in your room at line of sight, so it is unaffected by walls, furniture, etc.
- Battery life may vary based on temperature, age, and volume usage of product.
For the electrostatic discharge (ESD) test of EN301 489-1/17, it was found that manual operation is needed to resume normal operation as intended after the test.
Trademarks and Licenses
ION Audio is a trademark of ION Audio, LLC, registered in the U.S. and other countries. The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by ION Audio is under license. iOS is a registered trademark of Cisco in the U.S. and other countries and is used under license. The N Mark is a trademark or registered trademark of NFC Forum, Inc. in the United States and in other countries. App Store is a service mark of Apple Inc., registered in the U.S. and other countries. Android and Google Play are registered trademarks of Google Inc. All other product or company names are trademarks or registered trademarks of their respective owners.
ionaudio.com
Downloaded from thelostmanual.org
FAQ
- Q: How do I pair a Bluetooth device?
A: Press the Bluetooth button and follow the device’s pairing instructions. The Bluetooth icon will light up when paired. - Q: Can I leave my Block Rocker plugged in all the time?
A: Yes, it’s safe to keep it plugged in without overcharging the battery. - Q: What should I do if the battery doesn’t charge?
A: Check the fuse near the power input. If damaged, replace it. Contact support for further assistance.
Documents / Resources
![]() | iPA76A Block Rocker |
References
- Sound Experiences | ION Audioionaudio.com
- User Manualmanual.tools

