1. Introduction
The Technical Pro STUDIOPRO1 is a versatile recording deck designed for audio professionals. It facilitates the capture of various audio sources, from speeches and lectures to live performances and music. Beyond its recording capabilities, the STUDIOPRO1 functions as a high-fidelity audio receiver, supporting playback from multiple digital and analog sources.

Figure 1.1: Front view of the STUDIOPRO1 unit.
2. Key Features
- Integrated Bluetooth connectivity for wireless audio streaming.
- USB and SD card inputs for MP3/WAV/WMA file playback and MP3 recording.
- Digital display for track information and mode indication.
- RCA and 1/8'' (Aux) inputs for connecting external audio sources.
- RCA line output for connection to audio systems.
- Two microphone inputs with independent volume, tone, and echo controls.
- 9-band master equalizer for precise audio adjustment.
- Headphone output for monitoring.
- Rack-mountable design for easy integration into existing setups.
3. Important Safety Instructions
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER OR BACK PANEL. THERE ARE NO USER-SERVICEABLE PARTS INSIDE. REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL.
- Read these instructions thoroughly before operating the unit.
- Keep these instructions for future reference.
- Heed all warnings on the unit and in this manual.
- Follow all instructions.
- Do not use this apparatus near water.
- Clean only with a dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
- Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Only use attachments/accessories specified by the manufacturer.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
4. Setup Guide
4.1 Unpacking
Carefully remove the STUDIOPRO1 unit and all accessories from its packaging. Verify that all components are present:
- STUDIOPRO1 unit
- Power cable
- Rack mount ears and screws
- Audio cable (1/8" to 1/8")

Figure 4.1: Included accessories: rack mount ears, screws, and audio cable.
4.2 Connections
The STUDIOPRO1 offers various input and output options for integration into your audio system.
- RCA Input: Connect external audio sources (e.g., CD player, mixer) to the RCA input ports on the rear panel.
- RCA Output: Connect the RCA output ports on the rear panel to your amplifier, powered speakers, or recording device for audio playback.
- Aux Input (1/8"): Use the 1/8" (3.5mm) Aux input on the front panel to connect smartphones, tablets, or other portable music devices.
- Microphone Inputs (1/4"): Two 1/4" microphone inputs are located on the front panel for connecting dynamic microphones.
- Headphone Output (1/8"): Connect headphones to the 1/8" (3.5mm) jack on the front panel for private monitoring.

Figure 4.2: Rear panel connections, including RCA input/output and power.
4.3 Power Connection
Connect the provided power cable to the power input on the rear panel of the STUDIOPRO1 and then to a suitable electrical outlet. Ensure the voltage selector on the rear panel is set to the correct voltage for your region (110V/220V).
5. Operating Instructions
5.1 Front Panel Overview
The front panel provides access to all primary controls and inputs.

Figure 5.1: Left side of the front panel with power switch, display, and media inputs.
5.2 Media Playback (USB/SD/Aux/Bluetooth)
- USB/SD Playback: Insert a USB flash drive or SD card (up to 32 GB) containing MP3, WAV, or WMA files into the respective front panel slots. The unit will automatically detect the media and begin playback. Use the navigation buttons (◀◀, ▶▶, ▶/▌▌) to control playback.
- Aux Playback: Connect your external audio device to the 1/8" Aux input using an appropriate cable. Select the Aux input source on the unit.
- Bluetooth Playback: Press the 'BT' button to activate Bluetooth mode. The digital display will show "Bluetooth Mode" and "bt nolink" (Figure 5.2). On your mobile device, search for "STUDIOPRO1" in the Bluetooth settings and pair. Once connected, you can stream audio wirelessly.

Figure 5.2: Front panel display indicating Bluetooth mode.
5.3 Recording
The STUDIOPRO1 can record audio directly to a USB flash drive or SD card in MP3 format.
- Ensure a USB drive or SD card is inserted.
- Select the desired input source (RCA or 1/8" Aux).
- Press the REC button on the front panel to start recording. The REC indicator light will illuminate.
- Press REC again to stop recording.
- Recorded files are saved in MP3 format at a sampling rate of 128 kbps / 44.1 KHz.
5.4 Equalization and Volume Control
The STUDIOPRO1 features a 9-band master equalizer to fine-tune the audio output.

Figure 5.3: Master Equalizer controls.
- Adjust the sliders for each frequency band (63Hz to 16KHz) to boost or cut specific frequencies.
- The large VOLUME knob controls the overall output level of the unit.
5.5 Microphone Inputs and Effects
Two 1/4" microphone inputs are available with dedicated controls.

Figure 5.4: Microphone and recording section of the front panel.
- Connect microphones to MIC1 or MIC2 inputs.
- Use the MIC.VOL knob to adjust the microphone volume.
- The MIC.TONE knob allows adjustment of the microphone's tonal characteristics.
- Apply an echo effect to the microphones using the ECHO knob.
6. Maintenance
To ensure the longevity and optimal performance of your STUDIOPRO1, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid abrasive cleaners, solvents, or waxes.
- Ventilation: Ensure that the ventilation openings on the unit are not blocked to prevent overheating.
- Storage: If storing the unit for an extended period, disconnect it from power and store it in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
If you encounter issues with your STUDIOPRO1, refer to the following common problems and solutions:
- No Power:
- Ensure the power cable is securely connected to both the unit and a working electrical outlet.
- Check the power switch on the front panel is in the 'ON' position.
- Verify the voltage selector on the rear panel is set correctly for your region.
- No Audio Output:
- Check all audio cable connections (RCA output, Aux input, etc.).
- Ensure the master VOLUME knob is turned up.
- Verify the correct input source is selected on the unit.
- Check the volume levels on any connected external devices or amplifiers.
- Cannot Record:
- Ensure a USB flash drive or SD card is properly inserted and has sufficient free space (up to 32 GB supported).
- Verify the input source is active and producing audio.
- Ensure the media is formatted correctly (FAT32 is generally recommended).
- Bluetooth Connection Issues:
- Ensure the STUDIOPRO1 is in Bluetooth pairing mode.
- Make sure Bluetooth is enabled on your mobile device.
- Move your device closer to the STUDIOPRO1 to ensure it's within range.
- Try unpairing and re-pairing the device.
8. Technical Specifications
| Feature | Specification |
|---|---|
| Model | STUDIOPRO1 |
| Inputs | USB Flash Drive / SD Card (Up to 32 GB), RCA, 1/8'' (Aux), Bluetooth |
| Outputs | RCA (Line Out), 1/8'' Headphone |
| Playback Formats | MP3, WAV, WMA (from USB/SD) |
| Recording Format | MP3 |
| Sampling Rate (Recording) | 128 kbps / 44.1 KHz |
| Frequency Response | 20Hz-20KHz ±3dB |
| Signal to Noise Ratio | >90dB |
| Microphone Inputs | 2 x 1/4" |
| Equalizer | 9-band Master Equalizer |
| Compatibility | USB 2.0 |
| Voltage | 110/220V (selectable) |
| Dimensions (L x W x H) | 19.1'' x 4.3'' x 1.8'' |
| Weight | 3.56 lbs |
9. Warranty and Support
Technical Pro products are warranted against defects in materials and workmanship for a period of one year from the date of original purchase. This warranty is extended only to the original retail purchaser and is not transferable. It does not cover damage resulting from misuse, abuse, accident, neglect, improper installation, or unauthorized repair or modification.
To obtain warranty service, you must contact Technical Pro for a Return Merchandise Authorization (RMA) number. The unit must be sent back in its original packaging with proof of purchase. Shipping costs to the service center are the responsibility of the purchaser.

Figure 9.1: Technical Pro Limited Warranty details.
For technical support or warranty inquiries, please refer to the contact information provided with your product or visit the official Technical Pro website.





