Function introduction: input balance signal, output unbalanced signal, suitable for the front stage is balanced signal output, and the rear stage has no balanced signal input for the rear stage system, and various power amplifiers without balance inputChip Description: The internal interior of the SSM2141 is laser-trimmed with an accuracy of 0.0001%. In terms of distortion and noise as well as parasitic interference, its performance has undoubtedly reached the "professional level".The performance of the conversion circuit made by using the 5532 op amp is greatly improved. Excellent on-chip rejection for excellent common-mode noise rejection and offset error performance ensures high gain accuracy. The SSM2141 features a cross-coupled electronically balanced topology that simulates the performance of a fully balanced transformer solution for line drive.Stereo dual channelInput voltage: DC dual 12-15V (recommended voltage: positive 15-0-negative 15)Based on Sonic Frantiers preamplifier circuit.Input balanced signal, output unbalanced signalcolour: blueMaterial: PCB + electronic componentsSize: 86x49mmPackage Contents:1 x boardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.