Wiim Amp Ultra with Rel Quake subwoofer

[Paulo3M]

I am considering to buy a Wiim Amp Ultra, to be connected to a Smart TV via Hdmi, 2 Monitor Audio Silver RS6 and a Rel Quake subwoofer (part of an old 5.1 Home Theater System). I have several doubts concerning the utilization of the subwoofer:
1. According to Rel, we should connect the right and left positive terminals of the amp to the sub High Level Entry - I am not sure if it is possible this type of connection since the terminals of the amp are occupied by the speaker terminals.
2. As an option we can also connect the sub output of the amp, with a RCA cable, to the LFE of the sub, turning the volume of the LFE to the minimum.

I believe that with this type of connection we are not using de sub management capacities of the Wiim.

I also do not know if we should specify in the sub the crossover frequency, or if one should use the Wiim's software to specify the LPF and HPF values.

Can anybody help me? Thank you.

 

[harkpabst]

1. According to Rel, we should connect the right and left positive terminals of the amp to the sub High Level Entry - I am not sure if it is possible this type of connection since the terminals of the amp are occupied by the speaker terminals.

Don't do that. Don't listen to REL. This is bad advice anyway.

2. As an option we can also connect the sub output of the amp, with a RCA cable, to the LFE of the sub, turning the volume of the LFE to the minimum.

I believe that with this type of connection we are not using de sub management capacities of the Wiim.

This way you can actually take advantage of the WiiM sub management. I just don't see no reason to turn the LFE volume to minimum. The volume should be set to roughly 12 o'clock or slightly less. You will then increase or decrease the sub level in the WiiM Home app until it matches the speaker's level.

I also do not know if we should specify in the sub the crossover frequency, or if one should use the Wiim's software to specify the LPF and HPF values.

Normally, LFE means that no LP filter is applied by the sub since the AVR (or in this case the WiiM Amp Ultra) takes care of that. If this particular sub still has a low pass filter for the LFE, set it to maximum or out or disabled or however it may be called. Let the WiiM device do all the low pass filtering for the sub and the matching high pass filtering for the mains.

 

[Paulo3M]

This way you can actually take advantage of the WiiM sub management. I just don't see no reason to turn the LFE volume to minimum.

LFE set to a minimum because the RCA cable is just grounding de HLE connection.

Thank you all for your answers. If I buy the WAU, mid Setember, I will follow your advise, and possibly I will have more doubts. I am still not sure, I am thinking also about the Eversolo Play, maybe it has more quality components but I don't know if it can drive the Monitor Audio speakers with the 60 W at 8 ohm; or the Denon Home Amp, similar specks than the Wiim, maybe better sound, but the Dirac software for room correction costs an extra 250 €.

 

[slartibartfast]

LFE set to a minimum because the RCA cable is just grounding de HLE connection.

Can you explain what this means? Surely the RCA cable is carrying the low level sub signal.

 

[Paulo3M]

Can you explain what this means? Surely the RCA cable is carrying the low level sub signal.

Yes it is, and I understood that with the Wiim Amp Ultra this LFE should be the only connection to use. In this case the LFE volume on the sub should not be set to the minimum but to roughly 12 o'clock or slightly less (@harkpabst).

I am no expert, I was just reproducing Rel's explanation on how to connect the amp to the HLE of the sub:

 

[slartibartfast]

Yes it is, and I understood that with the Wiim Amp Ultra this LFE should be the only connection to use. In this case the LFE volume on the sub should not be set to the minimum but to roughly 12 o'clock or slightly less (@harkpabst).

I am no expert, I was just reproducing Rel's explanation on how to connect the amp to the HLE of the sub:

Yup, best to ignore REL. It is much easier to integrate a subwoofer with the WiiM bass management.

 

[gazza1101]

I still use a REL Quake in my games room for music with a cheap pair of Edifer active speakers connected to a Wiim pro, it transforms the sound, great small subwoofer.

 

[harkpabst]

No objections against the sub, just against REL's totally outdated advice.