TOPPING PA5 II Series Plus Power Amplifier User Guide

TOPPING PA5 II Series Plus Power Amplifier

Fully balanced structure, Pure sound quality

The PA5 Il and PA5 II Plus adopt a fully balanced structure and an innovative Class D amplifier circuit to achieve high power and low distortion sound output. The excellent tuning technology of engineers ensures clear, clean, deep sound, and no audible noise floor. The fully balanced structure makes PA5 I|/PA5 || Plus no more hum, no more noise, no more ground loop.

THD+N as low as an excellent DAC

• The distortion of PA5 Il and PA5 II Plus is already as good as the DAC.
• When outputting 5W under a 4 Q load, THD+N<0.0004%; When outputting 5W under an 8 Q load, THD+N <0.0003%. The extremely low distortion level takes your music experience to the next level.

High output power

The PA5 II Plus is capable of delivering up to 140W x 2 for 4-ohm loads at 10% distortion, and 125W x 2 for 4-ohm loads even when the standard is raised to 1% distortion. Similarly, the PA5 II can output 100W x 2 for a 4-ohm load at 1% distortion. High output power and low distortion characteristics make PA5 Il series amplifiers sufficient to meet the needs of most speakers and use occasions.

Comprehensive circuit protection

It has no noise when turned on or off, and has complete protection for overvoltage, undervoltage, short circuit, overcurrent, and overheating. Even if there is an unexpected power outage, it will not generate noise, making you worry free to use.

One set of TRS balanced input, one set of RCA input, The two inputs offer more compatible connecitons.

Linkage switch

PA5 Il series has 12V trigger input interface, which can be linked with other devices to switch on and off.

Please note that you need to toggle the “TRIG” in the front panel when using the 12V Trigger function.

Excellent match

The E50 DAC has pre-amplifier function and has the same design language as the PA5 II series amplifiers. The TRS balanced transmission between the DAC and amplifier ensures high fidelity transmission without fear of ground loop interference and environmental interference, bringing the PA5 Il and speaker performance to its fullest potential.

Meet all needs

When you need a more comprehensive system, we recommend the combination of PA5 Il series power amplifiers, E50 DAC and L50 Headphone amplifier. This way, there are corresponding devices from the digital audio source to the speaker and headphones.

Special partner—D10 Balanced

D10 Balanced can provide high fidelity USB decoding function and TRS balanced output. When used with PA5 II series amplifiers, it is equivalent to adding a high-performance USB input jack to the PA5 I series amplifiers. This combination is both concise and efficient when only USB input and amplifier output are required.

DIMENSION

PRODUCT OVERVIEW

1. Power indicator

2. Power switch
   ON: Turn on; OFF: Turn off;
   TRIG: Upstream devices connected by the 12V Trigger interface on the rear panel control on/off.

3. Input switch
   When dialing to BAL, select TRS balanced input, and SE selects single ended input.

4. Volume knob

5. Left channel 6.35mm TRS balanced input

6. Right channel 6.35mm TRS balanced input

7. Left channel single-ended RCA input

8. Right channel single-ended RCA input

9. 12V Trigger IN (3.5mm jack)
   When a device with 12V Trigger out jack is connected, PA5 I|/PA5 I| Plus’s
   power on/standby can be controlled through this device. Please switch the
   power switch on the front panel to “TRIG” if you need to use this function.

10. R+ speaker output: positive output of R speaker

11. R- speaker output: negative output of R speaker

12. L+ speaker output: positive output of L speaker

13. L- speaker output: negative output of L speaker

14. Power input

TRS IN

Attribute

Spec

(PAS II Plus)

Spec (PAS I1)

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