LEpai LP-225 Digital Hi-Fi Audio Amplifier User Manual
- June 8, 2024
- Lepai
Table of Contents
LEpai LP-225 Digital Hi-Fi Audio Amplifier
Thank you for choosing this Lepai LP-225 audio amplifier for your music projects. Lepai amplifiers are popular among customers for their high-quality audio performance, useful function and high cost-performance ratio.
Contents
1x Lepai LP-225 amplifier
The Lepai LP-225 power amplifier provides 20 watts RMS of clean audio power to
any set of stereo speakers. This amp is applicable for using on any desk,
countertop, workbench, and even in DIY projects or mobile audio applications.
Built in mounting brackets allow it to be mounted in, on, or underneath nearly
any surface or container. LP-225 is equipped with a built-in loudspeaker
protection circuit to protect your speakers from high volume bursts of audio
when the amplifier is turned on. LP-225 supports stereo RCA or 3.5mm inputs
from any phone, tablet, CD player, TV, or streaming player. Audio will play
regardless of which input is connected as there is no input switching.
Separate Bass and Treble adjustments rotary allow customers to customize audio
playback for better listening experience. Besides that, original audio source
signal can be passed through without enhancement.
Connections
Electrical Specifications
Specifications typical @ + 2 5 C, unless otherwise noted. Specifications subject to change without notice.
Parameter
|
Conditions
|
Min.
|
Typ.
|
Max.
|
Units
---|---|---|---|---|---
Number of Channels
|
–
|
–
|
2
|
–
|
–
Minimum Load Impedance
|
–
|
4
|
8
|
–
|
Ω
Nominal Power Requirement
|
@2x25W, 24V, 1kHz
|
–
|
2 x25W
|
–
|
W
Operating Voltage
|
@ 1 kHz, 8Ohm
|
12
|
–
|
20
|
V
Idle Power
|
Signal detected@ 1 2 V
|
–
|
0.84
|
–
|
W
Switching Frequency
|
SD Floating@ 2 4 V
|
–
|
300
|
–
|
kHz
Audio Performance
Specifications typical @ +25C, unless otherwise noted. Specifications subject
to change without notice.
Parameter
|
Conditions
|
Min.
|
Typ.
|
Max.
|
Units
---|---|---|---|---|---
Amp Gain
|
Line In
|
L&R
|
–
|
29.0
|
–
|
dB
SNR
|
Line In
2 x 25 W@ 8 Ohm, A- weighting
|
L&R
|
–
|
98.8
|
–
|
dB
THD+ N
|
Line In 1W@8Ohm, 1 kHz
|
L&R
|
–
|
0.017
|
–
|
%
Output Noise Level
|
Line In@ 12 V
A- weighting, Input Connected to GND
|
L&R
|
–
| 90|
–
|
uV
BT@ 12V
A- weighting, Input Connected to GND
|
L&R
|
–
|
85
|
–
|
uV
Input Impedance
|
Line In@8 Ohm, 1 kHz,
|
–
|
10
|
–
|
kΩ
DC Offset
|
–
|
–
|
5
|
–
|
mV
Typical Performance Graphs
FCC WARNING
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation. Any changes or
modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications.
However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated with minimum 20cm distance between the radiator and your body: Use only the supplied antenna.