Direct Connect Telephone Record Adapter

So far, great sound quality or has a seemingly high signal to noise ratio. Also, very easy to install and versatile. Two misconceptions, this VEC TRX-20 device does include the spiral cord and the 3.5mm or 1/8 mini jack. The device also connects to the headset rather than at the telephone jack. (Far better on the handset, for maintaining audio quality.) My setup, I plug the output or the 3.5 or 1/8 mini-jack of the VEC TRX-20 into a pre-amplifier, then from the pre-amp into the line-in of an Asus Xonar Essence STX PCI/PCIe computer card. (The ASUS STX cards are one of the best sounding or highest signal to noise ratio sound cards on the market.) Trying to connect this device directly to a computer sound card without using a pre-amplifier may require enabling "mic boost" through the computer operating soundcard frontend settings, and greatly degrading the sound quality or signal to noise ratio depending on the quality of sound card used. I would strongly suggest using a (microphone) preamplifier, costing another $50-100 and can be readily bought through most music stores. The better pre-amplifiers tend to use XLR micrphone connectors, include +20dB mic boost for which I find essential, as well as 1/4 inch jacks rather than the small 1/8 jacks. My equipment: 1) This device, VEC TRX-20 2) Studio V3 Tube MP Pre-amplifier (Settings: w/o +48v turned on, and +20dB Gain and Phase Reverse enabled) 3) Asus Xonar Essence STX PCI/PCIe sound card 4) Software: Linux ALSA arecord, aplay and alsamixer for recording 32 bit 48000hz PCM WAV files. (Photo shows only 16 bit rather than 32 bit recording due to an error on my part!)