An excellent condition Audio Research Line Stage Pre-Amp, model LS-1. Sounds great, looks great. Ive never had any issues with this. This is a hybrid pre-amp with one vacuum tube. There is a small scratch on the right handle and a tiny mark above the power light. I'm moving and downsizing, won't need a second system anymore. I no longer have the original box, but will pack this pre-amp very safely for you. I prefer a check or money order, but will accept paypal with a 2% surcharge. I pay shipping in the US. Thanks for looking.