Have you got a new phono preamp and you don't have the patience to burn it in with 100 hours on your new cartridge? I GET IT! Here's your solution: KAB's PreCon LP tool that passively converts a CD output to RIAA phono output so you can burn in your phono stage with your CD player.
It's a great tool! This one was used in my store gently and it is in as-new condition with the instruction sheet and original plastic case.
See manufacturer's info below:
The PreconLP™ is designed to convert a line level signal to a phono level signal with the proper inverse RIAA response characteristics. It is very accurate and has several applications in audio engineering and Hi Fi systems.
Used with a CD player and an appropriate burn in disc, the PreconLP can provide a burn in signal for your phono preamp.
Used with a signal generator, the PreconLP can provide a reverse RIAA signal suitable for testing the accuracy of any phono preamp.
The PreconLP can also be used to convert an unused phono input into a spare line input.
The output level adjusts automatically for MM inputs and MC inputs. Price & Purchase
When sourced into a 47K load the output level will match moving magnet cartridges.
When sourced into a 100 ohm load, the output level will match low output moving coil cartridges.
- Magnetically Shielded
- Teflon & Gold Connectors
- Glass Epoxy Circuit Boards
- 1% Metal Film Resistors
- 2% Propylene Capacitors
- Shipping Weight: 1 Lb.
Maybe it's the costly marketing, I don't know, but it really is not all that expensive to include hi quality parts like 2% propylene capacitors and gold/teflon RCA's. Yet the sonic advantages of doing these things is unquestionable.
The use of precision components enables phono preamp accuracy to be measured to ± 0.25 dB
All steel construction wards off the effects of stray magnetic fields. GREAT FEATURES
- 1 Year Warranty
- Gold Teflon RCA's
- Accurate Passive EQ
- Burn In Phono Stage
- Test Phono Stage Accuracy
- Convert Phono Input To Line Level
The really great features to take note of with the KAB PreconLP are, I believe, the high performance vs price. The last phono burn in device I saw sold for over $300 and made no claims for accuracy, nor did it have the build quality of the PreconLP.
Burn In is the process of stabilizing various components in the audio signal path. Capacitors are particularly sensitive to this process.
Tube circuits have at least one capacitor that never sees a stabilizing potential in normal use.
Bi polar solid state designs operate all their signal components at 0 bias. The burn-in process will improve the behavior of these components. The enhancement is temporary the burn in process should be repeated every 6 months.
You can order a new one for $80 + shipping from KAB. OR Buy this one for $60 and I'll include Priority Mail shipping.