TOPPING L30II Headphone Amplifier User Manual

TOPPING L30II Headphone Amplifier

Introduction

Thank you for purchasing linear headphone amplifier L30 II! L30 II is a high- performance linear headphone amplifier that supports RCA input and output, equipped with a 6.35mm headphone jack and gain selections function. Now we recommend first to read this manual for you to correctly use all the functions of L30 II.

Content List

• L30 II: X 1
• AC adapter: X 1
• 6.35 mm to 3.5 mm adaptor: X 1
• User manual: X 1
• Warranty card: X 1
  Note: You can download the user manual on http://www.topping.audio/

Description

1. (DOutput switch
   Switch to PRE output( RCAoutpul) or HPAoutput (Headphone output), or turn off.

2. Gain switch
   H / M / L respectively corresponds to 16.5dB / 0dB / -14dB

3. Power indicator
   The light will be always on when the L30 II is turning on, and goes off when ii is turning off, blinks to indicate une xpected output.

4. 6.35mm headphone output jack
   Suitable for headphones with 6.35mm jack

5. Volume knob
   Used to adjust the volume. It is recommended to turn down the volume before playing music.

6. Righi channel single-ended RCA input

7. Left channel single-ended RCA input

8. Right channel single-ended RCA output

9. Left channel single-ended RCA output

10. Power input
    AC15V/1 A50Hz/60Hz

Product specifications

L30 II Headphone Amplifier specifications

L30 II Headphone Amplifier specifications

THD+N @1kHz (A-wt)

| <0.00006% @Output=500mW (320)
<0.00005% @Output=80mW (3000)

THD @20-20kHz 90kBW

| <0.00008% @Output=500mW (320)
<0.00007% @Output=80mW (3000)
SNR @MAX OUT 1kHz (A-wt)| 144dB
Dynamic Range @1kHz (A-wt)| 144dB
Frequency Response| 20Hz-40kHz (±0.05dB)

Output Level

| 14Vpp@G=L
31Vpp @G=M
37Vpp@G=H

AP measured noise level (A-wt)

| <0.7uVrms@G=L
<0.7uVrms@G=M
<1.5uVrms @G=H

Actual noise level* (A-wt)

| <0.3uVrms @G=L
<0.3uVrms @G=M
<1.4uVrms @G=H
Channel Crosstalk @1kHz| -92dB

Input sensitivity

| 25Vrms @G=L
11.2Vrms @G=M
2.0Vrms @G=H

Gain

| -14.0dB @G=L
OdB @G=M
16.5dB @G=H
Output Impedance| < 0.10

Output Power

| 3500mW x 2@160 THD+N<0.1%
2700mW x 2 @320 THD+N<0.1%
2000mW x 2 @640 THD+N<0.1%
560mW x 2 @3000 THD+N<0.1%
Load Impedance| >80

Note:

1. The above data is the result of the test in TOPPING laboratory under AC2 20V 50Hz condition.
2. The actual noise level is obtained by boosting the noise of L30 II by 40dB using a low noise amplifier in front of the APx555B then dividing the measured noise by 100 times.

L30 II Pre-amplifier specifications

THD+N @1kHz (A-wt)| <0.00006%
THD @20-20kHz 90kBW| <0.00007%
SNR @MAX OUT 1kHz (A-wt)| 144dB
Dynamic Range @1kHz (A-wt)| 144dB
Frequency Response| 20Hz-40kHz (±0.05dB)

Output Level

| 14Vpp@G=L
31Vpp@G=M
37Vpp @G=H

AP measured noise level (A-wt)

| <0.7uVrms@G=L
<0.7uVrms @G=M
<1.SuVrms @G=H

Actual noise level* (A-wt)

| <0.3uVrms @G=L
<0.3uVrms @G=M
<1.4uVrms @G=H
Channel Crosstalk @1kHz| -92dB

Input sensitivity

| 25Vrms @G=L
11.2Vrms @G=M
2.0Vrms @G=H

Gain

| -14.0dB @G=L
OdB @G=M
16.5dB @G=H
Output Impedance| 200

Note:

1. The above data is the result of the test in TOPPING laboratory under AC2 20V 50Hz condition.
2. The actual noise level is obtained by boosting the noise of L30 II by 40dB using a low noise amplifier in front of the APx555B then dividing the measured noise by 100 times.

Precautions for daily use

1. The output jacks shall not be grounded or short-circuited
2. Do not keep the unit in a hot, humid environment or hit the unit strongly.
3. Opening the case instantly voids the warranty!
4. Indoor use only.
5. Topping accepts no liability for any loss or damage arising directly or indirectly from the failure of L30 II.

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