8 Ohm to 0.33W - 5W 100V Line Speaker / Audio Transformer - Altronics
Experiment | Audio Amplifier using transformer - YouTube
70V / 25V Line Matching Transformer 10W Power Speaker Audio | eBay
EA300 - 300W bidirectional audio distribution transformer.
High Performance 3 Inch Waterproof Speaker with 100V Line Transformer ABS Mini Wall Speaker for Outdoor Use Good for PA and Bgm - China Speaker and 3 Inch Speaker price | Made-in-China.com