Post by jra on May 15, 2017 22:40:06 GMT -5
I just received and set up a BasX A-500 amp and a BasX S-10 subwoofer to go with my 5-channel T1, C1 and E1 setup I purchased earlier. Receiver is a Pioneer SC-1222-K I picked up from Costco a while ago (it has pre-outs :-).
A-500 sounds *incredible*. I love what it does to the sound from the Pioneer. I initially set up the BasX S-10 as recommended by the manual, connected to the Pioneer sub-out and cranked up the cross over on the sub to the 'LFE' position. Immediately I heard a loud hum. Initially I panicked, as I'd been bitten by the Airmotiv S-12 sub humming problem previously. "I don't think I can be that unlucky" I thought, so started to debug. Changed the cable, moved it away from the power strips - no change. Then I had the idea of changing the crossover setting, so dialed it back from the LFE setting on the S-10 to 100Hz. Immediately the humming disappeared.
I checked on the Pioneer and found I'd had the cross-over set to 150Hz, so I moved it to match the S-10 setting at 100Hz. But even so the damn receiver shouldn't be emitting a hum above that frequency should it ? I'm thinking I might need another XMC-1 in my future to replace it :-).
Now I have the cross-over set right, I'm delighted with the sound. It can faithfully reproduce that teeth-rattling low frequency hum at the beginning of Also sprach Zarathustra on the 2001 soundtrack. Does anyone have any idea what might be going wrong in the receiver and why it does that ?
A-500 sounds *incredible*. I love what it does to the sound from the Pioneer. I initially set up the BasX S-10 as recommended by the manual, connected to the Pioneer sub-out and cranked up the cross over on the sub to the 'LFE' position. Immediately I heard a loud hum. Initially I panicked, as I'd been bitten by the Airmotiv S-12 sub humming problem previously. "I don't think I can be that unlucky" I thought, so started to debug. Changed the cable, moved it away from the power strips - no change. Then I had the idea of changing the crossover setting, so dialed it back from the LFE setting on the S-10 to 100Hz. Immediately the humming disappeared.
I checked on the Pioneer and found I'd had the cross-over set to 150Hz, so I moved it to match the S-10 setting at 100Hz. But even so the damn receiver shouldn't be emitting a hum above that frequency should it ? I'm thinking I might need another XMC-1 in my future to replace it :-).
Now I have the cross-over set right, I'm delighted with the sound. It can faithfully reproduce that teeth-rattling low frequency hum at the beginning of Also sprach Zarathustra on the 2001 soundtrack. Does anyone have any idea what might be going wrong in the receiver and why it does that ?
