Pro-Ject Stereo Box E
Instructions for Use
Dear music lover, thank you for purchasing an integrated amplifier from Pro-Ject Audio Systems. In order to achieve maximum performance and reliability, you should study these instructions for use carefully.
⚠️ Warning of a hazard for the user, the unit or possible misuse.
❗ Important notice.
Safety Instructions
AC outlet voltages vary from country to country. Before connecting to the mains, make sure that the voltage in your area meets the voltage requirements printed on the power supply. The power supply is used to disconnect the unit from the mains. Make sure that the power supply is easily accessible at all times. Never handle the device or the power supply with wet or damp hands. Avoid letting liquids enter the device or the power supply. Never place any item containing liquid, such as a flower vase, on or near the device. Never spill any liquid on the device or the power supply. Never place any naked flame sources, such as lighted candles, on or near the device. The product shall not be used in damp or wet locations, next to a bathtub, sink, swimming pool, or any other similar conditions.
Connectors
- Phono Input (In 1): Connect the tonearm signal lead. The earthing wire can be connected to the screw terminal if hum problems occur. Suitable for MM and High-Output MC cartridges.
- Line Inputs (In 2, In 3): For line-level sources like CD players, radios, or TVs. In 2 is RCA, and In 3 is 3.5mm TRS.
- Digital Inputs (In 4, In 5, In 6): For sources with digital outputs such as TV satellite/cable receivers or game consoles. In 4 is coaxial (S/PDIF), and In 5 & 6 are optical.
- Sub Out: Connect an active subwoofer.
- Speaker Connection: Output terminals accept loudspeaker cables terminated with 4mm Banana plugs, spades connectors, or naked wire.
- USB 5V/1A Output: Powers modern streaming devices (e.g., Stream Box S2). Includes a USB C to USB A adapter for using USB A power cables.
- Mains Power Connection: Connect the low voltage plug from the power supply to the Power 20V DC socket before connecting to the mains.
Make all connections whilst the amplifier is disconnected from the power supply. Take care to connect the left and right channels correctly. The right channel is usually marked red; the left channel is black or white. Never use any other power supply than the one supplied with the unit.
Front Panel Controls
- Power Button: Located on the left side. Press to turn the unit on or put it into standby. A blue LED above the button indicates when the unit is powered on.
- Input Selector: Press the button next to the 7 input LEDs to cycle through inputs. The selected input number will be illuminated.
- Volume Knob: Adjust the volume to the desired level.
- Headphone Jack: Connect headphones to the 1/4" (6.3mm Ø) jack socket.
Operation
To switch on from standby or to standby: The push button on the left side of the front panel turns the unit on or back into standby. The blue LED above the stand-by push button shows that the unit is switched on. If Mute is active, the indicator light will blink.
Input selection: After switching on, short presses of the input selection buttons on the unit will cycle through inputs 1 to 7. The active input is indicated by the illuminated LEDs.
Volume adjustment: Adjust the volume to the desired level using the large knob on the front panel.
Connecting a headphone: Connect headphones to the 1/4" (6.3mm Ø) jack socket on the front of the unit.
BT Connection
The Bluetooth antenna is pre-mounted on the Stereo Box E. BT is active only when Input 7 is selected. To connect your device for the first time, activate pairing mode by pressing and holding the Input (pair) button until LED 7 starts blinking. The Stereo Box E is now visible and ready to pair for 60 seconds.
Pairing with Android devices: Open Settings and turn on BT. Start a Scan for BT devices. Searched devices will appear. Tap on "Stereo Box E" and confirm the connection. When the connection is successful, the LED of Input 7 lights up continuously. You can now play music from your Android device over Bluetooth.
Pairing with Apple devices: Open Settings and turn on BT. Your device will automatically start searching for available devices. Tap on "Stereo Box E" and confirm the connection. When the connection is successful, the LED of Input 7 lights up continuously.
The Stereo Box E can store up to 8 BT devices. If the memory is full, new connections will automatically replace the oldest connection. A new connection is only possible if the LED of the BT input is blinking slowly (indicating that no device is connected).
Remote Control
- ON/OFF (⏻): Turns the unit on/off.
- VOL-: Turns the volume down.
- VOL+: Turns the volume up.
- CH-: Selects the input below the current one.
- CH+: Selects the input above the current one.
- MUTE (?): Activates and deactivates mute.
Replacing Batteries
Proceed as follows:
- Unlock and slide open the battery case cover.
- Replace the battery. Ensure correct polarity is observed.
- Slide the battery case cover back in.
Battery type: 2 x AAA 1.5V.
Do not dispose of batteries as ordinary domestic refuse. Please dispose of your exhausted batteries at appropriate collection sites, usually located at supermarkets and drugstores.
Technical Specifications
| Specification | Value |
|---|---|
| Power output | 2x 21W/40W @ 8 ohms/4 ohms (1% THD) |
| Frequency response (20Hz-20kHz) | < (-0.3dB; -2.5dB) @ 4ohm |
| Channel separation | 60dB @ 1kHz |
| Signal to noise ratio Variable output | 90dB 'A' weighted |
| THD | < 0.12% @ 5W / 4 ohms |
| Gain | 25dB |
| Phono MM input | 1 x RCA with grounding screw |
| Line level inputs | 1 x RCA, 1 x 3.5mm |
| Line input sensitivity | 700 mV |
| Line input impedance | 20 kohms |
| BT version | 5.0 |
| BT music receiver codec | aptX, aptX HD, A2DP profile |
| BT maximum TX power | +9dBm |
| Speakers connectors | 4mm banana plugs, spades connectors or naked wire |
| Outboard power supply | 20V/3A DC, 100 – 240 V, 50/60Hz |
| Power consumption in standby | <0.5W |
| Replacement battery remote control | 2x AAA 1.5V |
| Dimensions: WxHxD (D with sockets) | 206 x 51 x 115 (186) mm |
| Weight | 2kg without power supply |
Service
Should you encounter a problem that cannot be alleviated or identified, please contact your dealer for further advice. Only if the problem cannot be resolved there, the unit should be sent to the responsible distributor in your country. We recommend keeping the original packaging to ensure safe transport of your device. Warranty services are only provided for devices received in the original packaging.
Warranty
The manufacturer accepts no responsibility for damage caused by not adhering to these instructions for use. Modification or changes to any part of the product by unauthorized persons release the manufacturer from any liability over and above the lawful rights of the customer.
Copyright, Trademarks
Pro-Ject Audio Systems is a registered Trademark of H. Lichtenegger. This guide was produced by: Pro-Ject Audio Systems. Copyright © 2024. All rights reserved. The information was correct at the time of going to press. The manufacturer reserves the right to make changes to the technical specification without prior notice as deemed necessary to uphold the ongoing process of technical development.
Waste from Electrical and Electronic Equipment (WEEE): This directive mandates the collection and recycling of electronics and component materials to reduce landfill waste. Outside North America, when the user decides to discard this product, it must be sent to a separate collection facility for recycling. Please contact your point of purchase for more details.
Regulatory Information
Federal Communication Commission (FCC) Interference Statement
FCC Part 15: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. To maintain compliance with FCC's RF exposure guidelines, this equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. Use on the supplied antenna.
Declaration of Conformity
Pro-Ject Audio Systems, a division of Audio Tuning GmbH, Margaretenstrasse 98, 1050 Vienna, Austria, declare under our responsibility that the product to which this declaration relates is in conformity with the provisions of Directives: 2014/35/EU including amendments, 2014/30/EU including amendments, 2014/53/EU including amendments.
The following harmonised standards were applied:
- Health: EN62479:2010
- Safety: EN60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013, EN62368-1:2014/A11:2017, EN61558-1:2005/A1:2009, EN61558-2-16:2009/A1:2013
- EMC: EN301489-1 V2.2.0: 2017-03, EN301489-17 V3.2.0:2017-03, EN55032:2015, EN55035:2017, EN61000-3-2:2014, EN61000-3-3:2013
- Radio Spectrum: EN300328 V2.1.1 (2016-11)
Pro-Ject Audio Systems, a division of Audio Tuning GmbH, 1050 Vienna, Austria, Margaretenstrasse 98, info@project-audio.com
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