Mach Subwoofer levels

[scucci]

Hi guys,
Does anyone know if the MACH Dual Media Tape / CD Disc Radio subwoofer output conforms to the standard 2.0 volt peak to peak preamp standard. I am going to install one in my 98 sport and want to hook it up to the line level inputs on my MTX thunderform amplified subwoofer. The Radio is a Model# YL2F-18C868-CA.

Thanx in advance
Scucci

 

[TerryS1980]

Voltages isnt the only issue. You should also check into the impedance which is usually around 600ohms. I would use a line out converter before taking the chance of messing up the input on the amp.

 

[scucci]

Thanx Terry. Line out converter would be seeing only mid and high range from the mach head unit. I was hoping to get the impedence and any other info that everyone might have. I may have to put it on the bench and measure everything.
Scucci

 

[TerryS1980]

I wouldn't think that a factory FORD radio would have a subwoofer specific output. The factory amp probably is receiving a full range output and has some kind of built in xover or filter. Need someone else input on this.

 

[scucci]

The factory mach radio has a separate subwoofer output and an internal crossover. This is the so-called audiophile system. I guess as I learn from this I'll post my findings. The premium radio doesn't have the subwoofer output. Both radios have the RDF system. Ford audio is sometimes very confusing. I presently have the premium radio with the separate 6 disc cd changer and an MTX thunderform amplified subwoofer using speaker level inputs. The cd player in the head unit is going out and I got a good deal on an updated mach head unit. I guess it isn't too common to use a factory mach head unit and an aftermarket sub. I just want the factory look in the dash.
Scucci

 

[scucci]

The subwoofer output is a differential circuit, also known as balanced. To use it for an aftermarket sub amp requires a loc with differential inputs and non balanced outputs-RCA. I found the soungate.com locb.2 worked great. Also the remote turn on is 5 volt, also known as high audio mute. A low voltage trigger module works great to pump it to 12 volt level. This allowed the entire system to mute as with the stock subwoofer and amp. I also found that my stock premium head unit has subwoofer output that works with the locb.2 . It's all a learning process. My MACH head unit has an internal 150 HZ crossover, while the premium just seems to send all frequencies to the sub. Answered my own question I guess.

Scucci