Most Helpful Customer Reviews
29 of 29 people found the following review helpful:
5.0 out of 5 stars
works fine, March 24, 2007
This review is from: Behringer PP400 Ultra-Compact Phono Preamp (Electronics)
I bought this to replace a similar phono pre-amp, model number SP-2 by an unknown manufacturer (which added a noticeable hum to the signal in spite of all my efforts at grounding and removing ground loop, etc). The Behringer unit works fine and adds no noise at all as far as I can tell. I use it to play my old magnetic cartridge turntable through the auxiliary input of my new micro-stereo, and the old LP's sound great using that set-up.
Help other customers find the most helpful reviews
Was this review helpful to you? Yes
No
22 of 22 people found the following review helpful:
5.0 out of 5 stars
The ultimate solution for the middle class consumer, February 3, 2008
This review is from: Behringer PP400 Ultra-Compact Phono Preamp (Electronics)
It was time to replace my 20 year-old stereo receiver, and I was dismayed at the relatively high price tag of receivers sporting phono inputs. I'm no die-hard audiophile, but I do have a lot of vinyl and needed something that would work with my unamped Thorens turntable. This little gizmo was my dream come true. The external power supply is a far better option than the battery-powered alternatives and the grounding feature works like a dream. So much so, in fact, that the absence of background hum led me to believe I hadn't hooked it up correctly until the needle hit the record. I now have my turntable hooked up to the Video 2 input of my new Onkyo HT-SR600 and couldn't be happier.
Help other customers find the most helpful reviews
Was this review helpful to you? Yes
No
33 of 36 people found the following review helpful:
3.0 out of 5 stars
Good preamp / bad power supply, October 10, 2008
This review is from: Behringer PP400 Ultra-Compact Phono Preamp (Electronics)
I purchased the PP400 preamp for my new receiver which does not have a phono input (preamp), like most others in the same situation. The preamp is very nicely packaged. There is too much HUMMM. My background is electronics so I know what the reason is from the start. I had suspected it to be the case even before I purchased it. I cut the cord between the power supply and the preamp and inserted a filter circuit in between. So much for the warranty! For those who can understand it, the circuit is just a one transistor capacitance multiplier. The ripple (hum) was reduced from 50mv to under 2mv. The solution is not perfect but now I can live with it. I found that experimenting with grounding also help to reduce hum. Try attaching the ground wire to different points on the receiver chassie. Be sure to reduce the volume as you move the grounding around so you will not blow out the speakers or your ear drums. I am rather surprised, after reading the other reviews that not more hum complains were launchased. With that much hum on the power supply, hum is unavoidable. I am giving a full 5 stars on the preamp itself. The lack of filtering on the power supply dropped the rating to 3 stars overall.
Help other customers find the most helpful reviews
Was this review helpful to you? Yes
No
|