Description ?AppearanceThe product is used and shows scratches and stains.?OperationSince there are so many functions, I havent checked all of them, but it seems to be working normally. Residual distortion is extremely low at 0.0007% at 20Hz-20kHz. Display is performed on a PC, and there are two types of connection methods: one is via a PCMCIA card, and the other is via USBA. Each requires special cables and adapters, but these seem to be available for order at distributors. Since the display on the PC is optically isolated, it is sufficiently noise-resistant even on a notebook PC running Windows XP. Also, the control software and instruction manual are included on a CD, so you dont have to worry about it. If you measure with the above, you will get data with the AP logo, which is proof of high reliability. Please bid on the assumption that maintenance is required if you are concerned. Shipping We are going to ship by FedEX or DHL or Japan post. Payment Please pay within 4 days after your purchase. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.International Buyers - Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying.

What you see here is a true gem and if youre looking at it you probably know what it is: an Audio Precision Portable One Dual Domain P1DD Audio Analyzer capable of incredible performance in either the analog or digital (96k) domains. This unit is in fantastic shape and passes all self tests. Full performance testing of Amps, DACs, you name it, including jitter, THD, Frequency Response, and many more tests, with no need for an external computer to run it. It is fully self-contained. This unit includes a few extra features: Intermodulation Distortion measurementGPIB interface- 96kHz digital FLP-A20K filterAudio Precision Carry CaseUser manual Low Distortion:Analog System THD+N 80 kHz BW –92 dBDigital Distortion THD+N –140 dBHigh Analog BandwidthSignal Generation to 120 kHz Low Noise:22 Hz–22 kHz < –114 dBuA-weighted < –118 dBuWide Input Voltage RangeInput Range 80 mV–250 V in 10 dB steps Flat Response:20 Hz–20 kHz ±0.05 dB Low Crosstalk:Input < –120 dBOutput < –110 dB Low Jitter:Generator < 0.8 nsAnalyzer < 1.6 ns