【2 Set】Replacement Op-Amp THS4631D with Oscillation Countermeasure Board + DIP Conversion Board

■ Overview
This product features the highly-regarded Texas Instruments THS4631D operational amplifier, implemented on a board incorporating a Zobel filter and phase compensation capacitor to prevent oscillation.
A dual-channel DIP conversion board is also included, making it easy to replace existing operational amplifiers.

The item for sale is shown in the first photo. [This is a set of 2 units.]
- THS4631D implemented oscillation prevention boards (4 pieces)
- 1-channel to 2-channel operational amplifier DIP conversion boards (2 pieces)

The THS4631D is a genuine product purchased new from a domestic distributor. All capacitors used are C0G type.
(Due to component availability, the appearance of passive components may differ from the photos.)
While this product does not guarantee oscillation-free operation in all environments, components are mounted on the top surface, allowing for adjustments by modifying or adding resistors and capacitors yourself.

This product has been confirmed to operate without issue for 30 minutes of headphone playback when installed in a Topping DX7 Pro. (Using an uncompensated THS4631D in a Topping DX7 Pro will cause abnormal oscillation.)

■ Devices and Combinations Where Oscillation Occurred with This Product

There are some cases where use is not possible or requires caution.

* AROMA A10, A100TB, LUXMAN LXV-OT10, POPPULSE WM8741:
  Reports of oscillation have been received. (In some cases of WM8741, oscillation was resolved by adding a capacitor.)

* TOPPING DX7 Pro:
  Oscillation may occur when mixed with LME49720. No issues when mixed with OPA627, MUSES8920, or when using THS4631D exclusively.

* Model Number Unknown:
  Reports indicate oscillation occurred due to operational amplifier heat generation, but stable operation was achieved by attaching a heatsink to the THS4631D.

■ Returns

As this is an electronic component, we do not accept returns or exchanges. (This is because damage due to incorrect insertion or handling cannot be ruled out.)
We appreciate your understanding.

■ Shipping

Shipping will be via Yu-Packet Post or Yu-Packet Post mini. This is a simple packaging and post-drop service.