[SlimDevices: Audiophiles] SB3 Picking up a Garbled Radio Static?

[Beckett]

Hey! So this is a dumb question about an old product, the SB3, that I
still use. I'm running monster RCA cables out of the SB3 into the Aux
port of a Marantz 2270. I just had the Marantz recapped, and
everything's been great, until recently, I noticed a garbled static
sound emanating from the speakers. I've heard it before when there were
grounding issues with the pre/amp ports on the Marantz, the plastic part
of the port had broken and the metal connectors would make contact,
which was repaired and the sound disappeared. I have a Y-cable in the
pre-amp port, which runs to my powered HSU subwoofer. So the sub is only
receiving signal. I removed those plugs and the speakers still had
static. When I removed the RCA that connects to the SB3 from the amp the
static drops out. I tried different outlets and the garbled radio signal
was still there. It could be grounding as I live in an old house, but I
was wondering if maybe it is the SB3 power supply that's picking up
noise or the radio signal? I'm somewhat of novice here, so I hope this
makes sense :) Thanks!


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[slartibartfast]

Post by Beckett
Hey! So this is a dumb question about an old product, the SB3, that I
still use. I'm running monster RCA cables out of the SB3 into the Aux
port of a Marantz 2270. I just had the Marantz recapped, and
everything's been great, until recently, I noticed a garbled static
sound emanating from the speakers. I've heard it before when there were
grounding issues with the pre/amp ports on the Marantz, the plastic part
of the port had broken and the metal connectors would make contact,
which was repaired and the sound disappeared. I have a Y-cable in the
pre-amp port, which runs to my powered HSU subwoofer. So the sub is only
receiving signal. I removed those plugs and the speakers still had
static. When I removed the RCA that connects to the SB3 from the amp the
static drops out. I tried different outlets and the garbled radio signal
was still there. It could be grounding as I live in an old house, but I
was wondering if maybe it is the SB3 power supply that's picking up
noise or the radio signal? I'm somewhat of novice here, so I hope this
makes sense :) Thanks!Have you tried an alternative audio source into the amplifier?

Sent from my SM-G900F using Tapatalk




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[cliveb]

Be methodical about diagnosing this.

1. Plug the SB3 into a different line level input on the Marantz.
(Anything other than the phono input will do, eg the tape input). Static
gone? Fault is the particular input on the Marantz. Otherwise...
2. Try a different RCA cable to connect the SB3 to the Marantz. Static
gone? Fault is in the cable. Otherwise...
3. Try a different source component (eg. CD player, DVD player, etc)
using the Monster Cable into the same input of the Marantz. Static gone?
Fault is in the SB3. Otherwise...
4. Fault is in the Marantz.



Transporter -> ATC SCM100A
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