BillFitzmaurice.info

My question is whether running a single parallel bridged channel into 2 ohms (even if it is within the rating) is worse for the amp or drivers than running 2 channels into 4 ohms? Electrically it's the same thing. The reason to parallel bridge is so you can use a single output cable for all four ca...

Interesting question, monekh. Made me do a little exploring, so thanks for that - always good to learn something new. As you've found, Crown's version of parallel mono is very different than other amps "parallel" meaning just an internal Y connecting input A to B. Found this thread, maybe...

was just asked about parallel mono mode by a friend which led me to this diagram on the back of a macrotech (on the far right next to the binding posts) and made me question if I've been using this mode incorrectly myself... https://rvb-img.reverb.com/image/upload/s--hDm4d2UD--/f_auto,t_supersize/v1...

thanks everyone. this is a lot to work from!

one (perhaps ignorant) question, if its such a big no no to bridge channels, how do i get a bridged mono signal for the sub ( obvs dont want to send one half of stereo signals to the subwoofer).

And, can anyone recommend a brand of 12v amps which doesn't indulge in all this false specs weird hype horseS**t?

wow , Ok i wont bridge! -is this equally true in car audio? where many amp manufacturers suggest you bridge channels for running subwoofers. Will one of the channels of this amp (150watts rms @ 2 0hm) be alright to power the 250watt Rms Dayton LS10 - 44 (wired for 2 ohm) OR should i switch for anoth...

ps. the power handling rms of the Dayton driver is 250 watts

Oh no! i just read in the manual that the amp ive got is only 2ohm stable per individual channel , and when bridging 2 of the channels, as i intended to do for the trucktuba, it is only stable between 4 - 8 Ohms. Looks like ill have to run it at 8 Ohm or run two sets of cables to run it at 4 Ohms Wh...

thanks for the replies!

the amp ive got is 2 Ohm capable. so i'll do that.

Out of curiosity what would the advantages be to run it at 8 Ohm if any ?

Just about to start on a Trucktuba to fit neatly in the space available in a little van. Ive got hold of one of the 10" drivers recommended in the plan , the Dayton LS10 - 44 https://www.daytonaudio.com/product/1257/ls10-44-10-low-profile-subwoofer-dual-4-ohm Ive just noticed that it runs a dua...

I know the plans specify using an electrolytic capacitor for the woofer low pass filter, but is it possible to use polypropylene instead, or is there a specific characteristic to electrolytic capacitors that makes them better suited to this application?

greetings from a fellow UK weirdo. I was recommended this glue by another UK builder on this forum, and have built lots of cabinets with it - https://www.everbuild.co.uk/products/adhesives/wood-adhesives/30-minute-polyurethane-wood-adhesive-gel/. It expands well, and you should be able to find it fo...

Thanks Bill - sorry had misinterpreted value tolerance. That's good news though.

Hi again! I am in the process of building two Jack10s as a summer project with some kids at a local adventure playground. They want to be able to use the speakers in spaces without mains power, so we are hoping to power them using a 12v battery and a car amplifier. The build is going well so far, bu...

Planning to build a couple of Jack10s with passive filters, but having only biamped before and being from the UK, I wanted to double check what is meant in the plans when it says to choose 'the smallest gauge available' for the inductors... does this mean the lowest gauge number (i.e. the thickest),...