Atlas Sound Time Saving Devices TSD-PA252G 25W 2-Channel Power Amplifier (Black)

Atlas Sound
Atlas Sound Time Saving Devices TSD-PA252G 25W 2-Channel Power Amplifier (Black)
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Atlas Sound TSD-PA252G Overview

The black Time Saving Devices TSD-PA252G 25W 2-Channel Power Amplifier from Atlas Sound is a reliable 4Ω stereo amplifier designed for general amplification requirements. The unit adds sound reinforcement to small projector systems as it can provide ample power to drive up to four 8Ω loudspeakers in a classroom or boardroom.

The TSD-PA252G Amplifier features a balanced stereo phoenix-style connector and unbalanced RCA input options with an output of 25W per channel at 4Ω, or 50W bridge mono at 8Ω. The front panel gain controls provide adjustment for both left/right or bridged outputs and these removable knobs can easily be replaced with the included tamper-resistant security covers.

This Time Saving Devices (TSD) Amplifier is designed to overcome some common audio system problems in an easy and efficient way. It is built with high-quality components and includes removable individual I/O connectors for quick and precise wiring, separate ground terminals for all I/Os assuring secured connections, and removable level controls that can be replaced with tamper-resistant security covers.


  • Compact chassis design
  • 25W per channel into 4Ω
  • 50W bridged into 8Ω
  • 2 balanced inputs
  • Dual RCA inputs
  • Removable level controls with security covers
  • Peak indicator per channel
  • Input signal indicator per channel
  • Cable management system
  • Multiple mounting configurations
  • Separate ground connections
  • Removable phoenix style I/O connectors
  • Usable as a projector amplifier, zone amplifier, or rear-channel amplifier
  • Meets multiple energy standards


  • Courtrooms
  • Public forums
  • Restaurants
  • Schools
  • Industrial facilities
  • Houses of worship
UPC: 612079188031

Atlas Sound TSD-PA252G Specs

Load Rating8 Ω: 12 W x 2 Ch
4 Ω: 25 W x 2 Ch
InputsType: 2 x unbalanced line
Connection: RCA left and right
Impedance: 10K Ω Input Level: 316 mV (-10 dBV)

Type: 2 x balanced line
Connection: Removable 3 position captive screw 3.5 mm spacings
Impedance: 10K Ω balanced, 5K Ω, unbalanced
Line Input Level: 500 mV (-6 dB) balanced
OutputsType: 2 x speaker output
Connection: Removable 2 position captive screw 5 mm spacing
Wire Size: 14 gauge maximum
ControlLevel Control: 2 x removable knob with security cover
IndicatorsInput Signal: Green, 2 x 25 mV on threshold
Peak: Red, 2 x -3 dB before clip
Power: Blue
Frequency Response20 Hz to 20 kHz (±3 dB)
THD0.2% @ 1 kHz
Signal to Noise Ratio80 dBV
Power Requirements@ 8 Ω:
Voltage: 24 VDC, 1000 mA
Idle Current: 70 mA
Idle Watts: 4.3 W
Average Current: 160 mA
Average VA Watts: 18 W
Maximum Current: 490 mA
Maximum VA Watts: 36 W

@ 4 Ω:
Voltage: 24 VDC, 2000 mA
Idle Current: 70 mA
Idle Watts: 4.3 W
Average Current: 300 mA
Average VA Watts: 36 W
Maximum Current: 950 mA
Maximum VA Watts: 72 W
Safety ApprovalsExternal Power Supply: cUL, CE, RoHS, and TUV
MaterialChassis: Aluminum
Dimensions1.5 x 4.0 x 5.2" (3.9 x 10.1 x 13.2 cm)
Weight13.4 oz (379.9 g)
Packaging Info
Package Weight1.25 lb
Box Dimensions (LxWxH)7 x 7 x 3"
See any errors on this page? Let us know



Hi, Does the amp include the power supply?
Asked by: Philip T.
The Atlas Sound Time Saving Devices TSD-PA252G does not ship with power supply. It must be purchased separately.
Answered by: Jeff P.
Date published: 2021-03-23
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