2.1 system with miniDSP 2/4HD

[OCA]

REW will play two chirps at the beginning and end of the sweep from the right speaker. It can calculate the distance difference between the right speaker and the measured speaker using the first chirp. This allows you to calculate the exact time it takes for sound to arrive from the measured speaker to the listening position and apply the correct amount of delay to each speaker/sub so that the sound from all speakers arrives at the listening position simultaneously. The last chirp is used to account for any clock deviations in your microphone, as REW knows the exact time interval between these two chirps.

 

[musica]

is R + sub and L + sub measured?

 

[OCA]

is R + sub and L + sub measured?

Not initially but you should do that once you time align the sub to L and R and determine the best crossover.

 

[musica]

Not initially but you should do that once you time align the sub to L and R and determine the best crossover.

sorry, how should I proceed step by step?
thanks

 

[OCA]

I wrote down required steps earlier.

 

[musica]

Is it true that to use the miniDSP 2/4 HD well you need a power amplifier and not an integrated amplifier?

 

[OCA]

A better wording is that you do not need a preamp with MiniDSP as it does that function already.

 

[musica]

why do they say that the miniDSP 2/4 HD does not cut the band on the satellite speakers driven by the integral amplifier?

 

[OCA]

I don't know who says that but MiniDSP is totally capable of applying crossover filters to all 4 channels.

 

[musica]

yes, I verified by moving the high pass filter.
now I only have the problem of controlling the volume of the sub and satellites with a single knob, how can I solve it?

 

[early rejecter]

I only have the problem of controlling the volume of the sub and satellites with a single knob, how can I solve it?

If you have the MiniDSP connected the way staticV3 illustrated at the beginning of this thread, you can control volume with the MiniDSP using the included remote.

Personally I prefer to insert the MiniDSP between pre-out / main-in on the integrated amp, if those connections are available to you. That way the volume can still be controlled by the integrated amp, and you still have all of the amplifier inputs available to be run through the MiniDSP — though it also means that digital sources are going through an unnecessary D/A - A/D conversion before processing.

 

[musica]

this is my integral amplifier, what can I do?

 

[OCA]

 

[musica]

are there 30 - 40 w stereo power amplifiers?

 

[early rejecter]

this is my integral amplifier, what can I do?

For that one you’ll need your sources connected to the MiniDSP, and since you’ll be splitting output between your amplifier and subwoofer you’ll need to control volume with the MiniDSP.

Since your Denon amp has pre-outs, if you wanted to connect your sources to the Denon and control volume there you could connect the pre-outs to the MiniDSP inputs and then add a separate power amp for output.

 

[musica]

can i use this little class d amplifier as a power amp and my integrated as a preamp.
are there any counter-regressions?

 

[Jimbob54]

What is wrong with the OP using his denon amp for the mains after the Mini DSP? Can't he just set the Devon volume to the max level he may ever need and use the mini DSP as his master preamp ?

 

[musica]

What is wrong with the OP using his denon amp for the mains after the Mini DSP? Can't he just set the Devon volume to the max level he may ever need and use the mini DSP as his master preamp ?

I and bring the miniDSP volume to maximum would like to use the Denon volume as a master

 

[early rejecter]

What is wrong with the OP using his denon amp for the mains after the Mini DSP?

Nothing wrong with that if the MiniDSP has all the inputs he needs and he’s ok with needing a remote for volume control — that’s what I suggested in the first paragraph above and what both of the diagrams in this thread illustrate.

 

[early rejecter]

View attachment 384609
can i use this little class d amplifier as a power amp and my integrated as a preamp.
are there any counter-regressions?

Yes, that’s fine if that amp can drive your mains adequately. I’m not familiar with that specific amp and would be inclined to use one that’s been well-reviewed here at ASR, but that or something like it will work if you’re planning to use the Denon as input and volume control.