This is the SPL microphone preamplifier Model 1212. It's a microphone pre-amp from the Analog Elements Series, featuring transformers on both the input and output. It has the characteristic SPL sound with added thickness unique to transformers, making it a very musical pre-amp, in my opinion. I used it for classical music recordings, but I'm selling it because I haven't been using it much lately. It's a 115V specification, but it worked fine on 100V. When using a step-up transformer, I used a Pro Cable transformer, which I can include for an additional 8000 yen if needed. The original box is not included; the unit itself is the only item for sale. Thank you.