Function: 1. ULTRA COMPACT SHAPE: This is an ultra compact preamplifier with metal housing for portability and durability, has a long service life 2. DIFFERENT CONNECTION OPTIONS: 2 XRCA inputs (L and P), 2 XRCA outputs (L and P) and 1x 1/4 inch for TRS output, multiple connection options 3. SIGNAL CONVERSION: The phono preamplifier is used to convert the telephone signal to a linear level signal, the input sensitivity is 5,3 mV at 1 kHz 4. EXCELLENT PERFORMANCE: Very low AU-DIO performance for excellent sound quality, metal material is shiny, sturdy and durable 5. 68DBU AT 0DBU SNR: The frequency response of the phono preamplifier is RIAA, 35dB increase, SNR is 68dBu at 0dBu, and weighted, very stable Specification: Item Type: Phono Preamplifier Material: metal Color: Black Frequency Response: RIAA THD: typically 0,06%. at -40 dBu/1 kHz Added value: 35dB Signal-to-noise ratio: 68 dBu at 0 dBu, weighted Input sensitivity: 5,3 mV at 1 kHz Product adapter: 50/60Hz 12V/1A (EU 100-240VAC plug) List of packages: 1 x amplifier 1 x instruction manual 1 x power supply Note: It can be used directly.