Active Crossovers

[Nuforce]

I've used both analogue and digital Beringer crossovers. They were both nasty, with the digital one being really bad, adding glare and totally ruining the sound.

 

[Nuforce]

[Listening test] Marchand XM126-3 tubed active crossover & PS127 power supply

Marchand XM126-3 Crossover with Marchand PS127 power supply, a review by Mark Wheeler on TNT-Audio - Internet HiFi magazine - www.tnt-audio.com

www.tnt-audio.com

Now this one looks interesting

 

[Robh3606]

I am more interested in the comments by users that have the unit, as well as the Mini DSP and the Beringer I think it wass.

As a data point if you want a low cost crossover to experiment with take a look at this DBX 223. I have one in my 4 way analog active set-up and it's fine. Even using with compression drivers the noise level sighted as a possible issue is not in my set-up. It's a simple 2 way there is also a 3 way version available.

Rob

dbx 223xs Crossover Review

This is a review and detailed measurements of the dbx 223xs active analog balanced crossover. It is on kind loan from a member and costs US $245. I must say this is a nice and sturdy package for such a bargain price. Controls feel nice as well. Functionality though is confusing given the...

www.audiosciencereview.com

 

[Nuforce]

As a data point if you want a low cost crossover to experiment with take a look at this DBX 223. I have one in my 4 way analog active set-up and it's fine. Even using with compression drivers the noise level sighted as a possible issue is not in my set-up. It's a simple 2 way there is also a 3 way version available.

Rob

dbx 223xs Crossover Review

This is a review and detailed measurements of the dbx 223xs active analog balanced crossover. It is on kind loan from a member and costs US $245. I must say this is a nice and sturdy package for such a bargain price. Controls feel nice as well. Functionality though is confusing given the...

www.audiosciencereview.com

I used a DBX223 for a couple of years. Not bad for sure. The sublime audio I replaced it with has a significant improvement however.

 

[morricab]

And questionable measurements. Someone in the comments said his test equipment can create the noise. I don't know if it true or not, but Amir does not have a proper tool basket nor the technical expertise to measure much. He have very crude and limited techniques. He is only giving a small data point.
I am more interested in the comments by users that have the unit, as well as the Mini DSP and the Beringer I think it wass.

Again, for a digital only system, the Mini-DSP Nanodigi and your own DACs works very well and is very easy to use and to dial in a system. I went analog active only to accommodate my turntable.

 

[Kingrex]

Again, for a digital only system, the Mini-DSP Nanodigi and your own DACs works very well and is very easy to use and to dial in a system. I went analog active only to accommodate my turntable.

NanoDigi needs dedication DAC on the output.
I also looked at the MiniDSP SHD but that is 4 mono out. I need 3 stereo or 6 mono.
The Ashley Protea or some of the Yamaha have 6 outputs. That would allow me the flexibility to Tri Amp.

 

[morricab]

NanoDigi needs dedication DAC on the output.
I also looked at the MiniDSP SHD but that is 4 mono out. I need 3 stereo or 6 mono.
The Ashley Protea or some of the Yamaha have 6 outputs. That would allow me the flexibility to Tri Amp.

Yes, I said it needs your own DACs. So, if you have only 1 DAC get a second one for a two-way setup.

 

[adrianywu]

Let me see if I can break this down.
The signal from pre to amp is small and delicate. So minimal devices are audible when inserted into it.
The signal from a power amp to speaker is robust, so more can be put in its path. But its still audible.

You got it the other way around. Signal before the power amp is low current driving high impedances. Signal after the power amp is high current driving low impedances. High current means higher losses. The use of inductors in passive crossover networks also introduces hysteresis losses and complex interactions with the back EMF from the drivers.

 

[Kingrex]

My preamp wants to see a minimum 20K impedance on its load. 100K is best.

I was looking at a amp that is 13k. My current amp is around 30k.

If I paralleled these amps to biamp my pre would see about 9k ohms. Pretty low.

If I put a actuve crossover between the amps and pre, and the active was 100kOhms on the input, would my pre see 100k ohms? In other words, do the loads plugged into a active ceossover change the impedance of the device.

Lets assume this is either electronic or analog.

 

[audiobomber]

If I put a active crossover between the amps and pre, and the active was 100kOhms on the input, would my pre see 100k ohms?

Yes, the preamp output would see 100kOhms load. Whatever load the crossover is driving is not seen by the preamp.