Mellotronix
Super Member
I finally figured out why my Oppo UDP 203 sounds anemic compared with the Yamaha BD A1060. The problem is in the setup menu of the player, and it probably only applies to users who are not using a multichannel home theater receiver with an HDMI cable.
If you indicate that you have a 2.1 system the player will not pass the bass signal (.1) unless you are using an HDMI cable into a multichannel home theater system. If you set the crossover to 100 HZ, you will only get a highly attenuated signal below 100 HZ sent downstream to your preamp or integrated amp through the coaxial or analog outputs. I have not tested the optical connection yet, but my guess is that if it is connected to a 2 channel amp, it's going to attenuate the bass as well.
It's an easy fix. Go to the setup menu and select audio processing. Indicate that you have a 2 channel system with no sub. Set the crossover to the lowest value (40HZ). Make sure that you select large speakers--even if you have small speakers--so that you get the full frequency range sent to your preamp. Set the downmix to stereo.
It makes perfect sense once you understand what the amp is doing. It wants to send the low frequencies separately to your preamp and it is set up to do this no matter which connection you are using. But the manual indicates that using stereo mode in the downmix menu will mix all of the channels, including the bass channel, into a stereo signal. The problem is that the bass is very weak. I had to turn my SVS sub to around 8 before I was hearing any low end.
I did load the latest firmware and it does not solve the problem. Maybe Oppo will address this issue in a later update. I suppose that only a few of us luddites are using old fashioned 2 channel integrated amps these days.
If you indicate that you have a 2.1 system the player will not pass the bass signal (.1) unless you are using an HDMI cable into a multichannel home theater system. If you set the crossover to 100 HZ, you will only get a highly attenuated signal below 100 HZ sent downstream to your preamp or integrated amp through the coaxial or analog outputs. I have not tested the optical connection yet, but my guess is that if it is connected to a 2 channel amp, it's going to attenuate the bass as well.
It's an easy fix. Go to the setup menu and select audio processing. Indicate that you have a 2 channel system with no sub. Set the crossover to the lowest value (40HZ). Make sure that you select large speakers--even if you have small speakers--so that you get the full frequency range sent to your preamp. Set the downmix to stereo.
It makes perfect sense once you understand what the amp is doing. It wants to send the low frequencies separately to your preamp and it is set up to do this no matter which connection you are using. But the manual indicates that using stereo mode in the downmix menu will mix all of the channels, including the bass channel, into a stereo signal. The problem is that the bass is very weak. I had to turn my SVS sub to around 8 before I was hearing any low end.
I did load the latest firmware and it does not solve the problem. Maybe Oppo will address this issue in a later update. I suppose that only a few of us luddites are using old fashioned 2 channel integrated amps these days.