Topping LA90
The Topping LA90 can be configured and connected to operate in either stereo or mono mode, and using two LA90 units together provides increased power. In mono mode, the minimum impedance is 8?.
The LA90 features three balanced inputs. These inputs have a hybrid design, enabling the use of both XLR and 6.35 mm TRS cables. Additionally, the three connectors allow the device to function in mono mode.
The LA90 exhibits exceptionally low THDN, measured at just 0.00007 at 8Ω 10W and 0.00008 at 4Ω 20W. These capabilities enable precise reproduction of the original signal.
The LA90 volume can be adjusted with a large knob on the front panel. It is also possible to bypass the LA90 volume control to connect it with a HiFi preamplifier. This feature is particularly helpful for synchronizing the volume of two LA90 units in mono mode.
TECHNICAL SPECIFICATIONS
MEASUREMENTS
Parameter: Stereo
THDN Unweighted 90kBw
SNR
Frequency Range
Output Level
Input Sensitivity
Characteristics
Channel Balance
Output Impedance
Output Power
Load Impedance
GENERAL
Dimensions
Package
To be compatible with most audio systems, even the more demanding ones, the LA90 provides adjustable amplification with two settings. The Low Gain setting offers an amplification of 6.7 dB, while the High Gain setting delivers an amplification of 19 dB.