Topping PA7 Class D Balanced Amplifier

Topping PA7 Class D Balanced Amplifier

Topping PA7 Plus utilize a new Class D amplifier circuit with a variety of exclusive optimization techniques, which has powerful low distortion performance and power output. These technologies ensure a clearer, cleaner, deeper sound without any background noise. In addition, the balanced structure is able to reduce noise during transmission, thus enabling better performance of the audio source and avoiding wasted performance.

Impressive output power

Despite their small size, the PA7 Plus is capable to deliver 300W x 2 to a 4-ohm load at 10% distortion. With a 1% distortion standard, the  4-ohm load will output 245W x 2. These power outputs and low distortion levels are sufficient to meet the needs of most speakers and applications.

Multiple input options

The PA7 Plus offer two sets of input connectors: Combo connectors (compatible with XLR and TRS) and RCA connectors, ensuring compatibility with a variety of audio sources.

Volume control

You can control the volume of the PA7 Plus, or set to bypass the volume control of PA7 Plus.

12V trigger input for seamless integration

Both the PA7 and PA7 Plus feature a 12V Trigger input interface, allowing you to connect them with other devices for synchronized on/off switching.

Specifications

• THD+N @1kHz (A-wt)
  • SE: <0.0005% @4Ω 20W, <0.0004% @8Ω 20W 
  • BAL: <0.0004% @4Ω 20W, <0.0003% @8Ω 20W 
• THD+N @20kBW (No-wt) 
  • SE: <0.009% @4Ω 20W, <0.004% @8Ω 20W
  • BAL: <0.009% @4Ω 20W, <0.004% @8Ω 20W 
• SNR @Max out 1kHz 
  • SE: 124dB
  • BAL: 127dB
• Dynamic range
  • SE: 124dB
  • BAL: 127dB
• Frequency response
  • SE: 20-40kHz (±1.5dB)
  • BAL: 20Hz-40kHz (±0.3dB)
• Output level
  • SE: 90Vpp @4Ω, 91Vpp @8Ω
  • BAL: 90Vpp @4Ω, 91Vpp @8Ω
• Noise (A-wt)
  • SE: <17uVrms
  • BAL: <17uVrms
• Channel crosstalk @1kHz 
  • SE: -96dB
  • BAL: -116dB
• Input sensitivity
  • SE: 2Vrms
  • BAL: 4Vrms
• Gain
  • SE: 25.7dB
  • BAL: 19.8dB
• Channel balance
  • SE: 0.5dB
  • BAL: 0.5dB
• Output power
  • 300W x2 @4Ω THD+N<10% 
  • 165W x2 @8Ω THD+N<10% 
  • 245W x2 @4Ω THD+N<1%
  • 135W x2 @8Ω THD+N<1% 
• Load impedance: 4-8Ω 

List of items included

• PA7 Plus
• Power adapter
• Power cable
• User manual
• Warranty card