This document describes two Pyle graphic equalizers: the PLE550BS (5-band) and the PLE770BS (7-band). Both devices are designed to enhance audio systems by providing precise control over sound frequencies and offering additional features for a comprehensive listening experience.
Function Description
Both the PLE550BS and PLE770BS are graphic equalizers that allow users to adjust specific frequency bands to tailor the audio output to their preferences or the acoustics of their environment. They feature a low-pass filter with selectable frequency control, enabling dedicated management of subwoofer output. A built-in Bluetooth (BT) module facilitates wireless music streaming, and an input selector allows switching between BT and CD inputs. Both models include RCA auxiliary inputs (rear) for connecting external audio sources like MP3 players, DVDs, or phones.
The equalizers are equipped with a master system volume control, a fader function to balance volume between front and rear channels in a 4-speaker system, and a dedicated subwoofer volume control. Preamp controls allow for boosting or cutting frequency responses across multiple tone controls.
Important Technical Specifications
Common Specifications (PLE550BS & PLE770BS):
- Tone Adjustable Range: -12dB to +12dB
- Output Voltage: 5V RMS @ 0.05% THD
- Voltage: 11V-14.5V
- S/N Ratio: 100dB
- Separation: > 60dB
- Frequency Response: 20Hz ~ 25 KHz
- Subwoofer Frequency: 40Hz / 150Hz
- Product Dimensions: 7" x 4.72" x 1.18" (inches)
- Mounting Hardware: Included
PLE550BS Specifics:
- Equalization Bands: 5
- Low Bass Equalizer Frequency: 45Hz
- Bass Equalizer Frequency: 100Hz
- Mid-Bass Equalizer Frequency: 700Hz
- Mid Equalizer Frequency: 2 KHz
- High Equalizer Frequency: 15 KHz
- Subwoofer Freq Selection: 43Hz or 63Hz
PLE770BS Specifics:
- Equalization Bands: 7
- Low Bass Equalizer Frequency: 63Hz
- Bass Equalizer Frequency: 125Hz/315Hz
- Mid-Bass Equalizer Frequency: 750Hz
- Mid Equalizer Frequency: 2.2 KHz
- Mid-High Equalizer Frequency: 6KHz
- High Equalizer Frequency: 12 KHz
- Subwoofer Freq Selection: 43Hz or 63Hz
Usage Features
Controls and Adjustments:
- Fader Control: Adjusts volume balance between front and rear speakers in a 4-speaker setup.
- Volume Control: Adjusts the overall output level.
- Subwoofer Volume Control: Adjusts the output level of the subwoofer.
- Subwoofer Frequency Switch: Selects the subwoofer crossover frequency (43Hz or 63Hz for both models).
- Input Selector Switch: Toggles between Bluetooth (BT) and CD inputs.
- Preamp Controls: Individual rotary controls for each frequency band to boost or cut the response by -12dB to +12dB.
- Blue LED Indicator: Indicates Bluetooth status.
Connectivity:
- Two Stereo RCA Outputs: For connecting to main amplifiers.
- Auxiliary Stereo RCA Inputs (Rear): For connecting external audio devices.
- BT Antenna: For wireless Bluetooth connectivity.
- Wiring Diagram: Detailed diagrams are provided for both models, showing connections for GND, REM, +12V, BT antenna, CD player, rear speaker, front speaker, and subwoofer speaker, along with corresponding main amplifier outputs.
Safety Instructions:
- Power Line Voltage: Ensure the power line voltage is AC 110V/220V.
- Power Cord Protection: Protect the power cord from being walked on or pinched.
- Ventilation: Do not block any ventilation openings to prevent overheating.
- Environment: Avoid water, dust, moisture, and extreme temperatures (do not place objects filled with liquids on the unit; ensure ambient temperature is greater than 41°F).
- Foreign Objects: Prevent tiny metals (e.g., pins, coins, needles) from falling inside the unit to avoid short circuits.
- Opening the Unit: Do not open the unit as this may result in damage or electrical shock.
- Accessories: Use only recommended accessories.
- Continuous Operation: The device is intended for continuous operation.
- Speaker Impedance: Please use 4 Ω speakers.
Maintenance Features
Cleaning:
- Do not attempt to clean the unit with chemical solvents as this might damage the finish.
- Use a clean, dry, or slightly damp cloth for cleaning.
Troubleshooting:
- The manual emphasizes retaining the instruction manual and operating instructions for future reference, implying that it contains information for troubleshooting common issues, though specific troubleshooting steps are not detailed in the provided excerpts. For complex issues, contacting the dealer or service company is recommended.