Reply To: Backplate without mid-frequency adjustment home › Forums › General Discussion › Backplate without mid-frequency adjustment › Reply To: Backplate without mid-frequency adjustment April 19, 2024 at 12:32 pm #1840 DizzieParticipant It is WBF (What’s Best Forum) https://www.whatsbestforum.com/threads/anyone-have-sound-lab-electrostatic-speakers-i-searched.37967/#post-962652
