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The only downside was that the tuner section on my Arcam AVP-700 is useless with the NuForce amps in play. Jason has indicated that the Ref 9's need to be 3 meters away from the tuner and or antenna.
Jason has indicated that the Ref 9's need to be 3 meters away from the tuner and or antenna.
FM tuner uses very low power RF and even if an amp passed FCC/CE certifications, it can still generate sufficient RFI to interfer with FM reception when the antenna is close to the amp. Therefore we recommend you bring the shielded FM antenna (the tuner and amps can be close together) as far away as possible. Those people with roof top antenna reported no problem with their reception. 5 meters away should allow you to receive most of the channels.
Gostan,We need to investigate this further. I use Denon AV recevivers (48xx and 53xx) and have no problem with using a FM antenna about 15 feet long.Here's what I extracted OUT OF Arcam AVP 700 manual:THE AVP700 IS A DIGITAL AUDIO DEVICE WHICH HAS BEEN DESIGNED TO VERY HIGH STANDARDS OF ELECTROMAGNETIC COMPATIBILITY. THE UNIT CAN RADIATE RF (RADIO FREQUENCY) ENERGY. IN SOME CASES THIS CAN CAUSE INTERFERENCE WITH FM AND AM RADIO RECEPTION. IF THIS IS THE CASE, KEEP THE AVP700 PLAYER AND ITS CONNECTIN ...
I'm also having problems with FM reception. I've got an outdoor aerial with a modern tuner (Sony STSDB900) as well as a Leak Troughline and a Quad FM4. Basically the Ref 9 killed my reception stone dead and I'm having to use a different amp for radio listening.
Out of curiosity, I plugged in a generic dual-ear antenna to my receiver and sat it directly on top of the Ref 9s. The only way I could interject radio interference was if the antenna base was sitting directly on top of the amps. I only had to move it 1-2 inches away and everything cleared right up. What is the proximity of your tuner to the amps Timothy? BTW, welcome to AC! -KJ
In general, only Apogee users have to be concerned with the 0.1V DC offset, this is not an issue with all other speaker types.The 24VDC to ground limit with the Definitive Technology is because of its built-in subwoofer amp tapping signals from the speaker terminals ...
I will use a TBI active sub (via speaker terminals, no alternatives)and Fostex speakers which have no crossovers and caps to filter out DC...
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