High Performance Audio Output Transformer from the renowned Lundahl Transformer company.
The LL1524 is an audio output transformer for balanced drive. 
A 5-section output transformer. 
A very low leakage inductance and thus excellent HF characteristics.
The LL1524 is (like all C-core audio output transformers) ideally used with negative source impedance achievedusing mixed feedback drive circuits. 
Please allow 3-4 weeks for delivery until we have stock