I bought 2 new 3 way crossovers for my speaker set. I wired the woofer to the W+ W - of the crossover as well as the tweeter to the T+ T- and the mid range to the H+ H-.(the pos and neg terminals on the crossover are in this order, HH,TT,WW). The woofer and tweeter sound perfect and are loud in volume, the 10" woofer im using as a midrange is very low and faint in volume(but sounded far louder when wired to Midrange of my older crossover). What does H H mean on a 3 way crossover?, is it for midrange or ? I did a test and wired the tweeter to the H H, and the volume was also very low and faint but loud on T T, anyone have an idea why? What does H H stand for? Cant find answer on google search. Heres the specs for the crossovers-3-way passive crossover 8 ohm Woofer Frequency: 20Hz-500HzMidrange - 500HZ-4.5KHZTweeter - 4.5KHZ-20KHZ600 watts RMS/1200 watts peak each

^Above is the crossover. Cant find pix of back and dont have camera. I wonder if this new crossover is defective or the H H terminal is 3/4 burnt out? Or is that the way H H is supposed to sound-its very low in volume and faint when mid or tweeter is wired to it and wat does h h stand for? if anyone has an idea, thanks.

edit....

Earplug wrote: Yes, swap mid and top (tweeter to H and mid to T) and see what happens.

Yes i switched mid range with tweeter(wired mid range to T+T- and tweeter to H+H-) and the mid range sounds much louder and tweeters very low in volume, this proves its not my midrange speaker but the H H thats sending very low volume. The h h of this crossover may be faulty or 3/4 burnt out. AND by the pix and specs of this crossover pair, are they 8 ohms each or 4 ohms? and is it 6 db or 12 db?

4D wrote: Not sure if this is helpful but the U.K convention colour coding for wiring signal from crossover to amp racks is  Red = Low Yellow =Low Mid Green = High Mid Blue = High

The blue wire as picture of crossovers show is wired to H, which is supposed to be mid, but as you pointed out blue is for highs. I did contact seller and he said H H is for high midrange, T T is for tweeter. The freqs for W and T sound perfect, for H it sounds good on mid range but very faint, H wired to tweeter sounds slightly higher pitched than when tweeter is wired to T but very faint. TO MAKE MATTERS WORSE the white retangular item on crossovers get extremely hot like its ready to burn. It must be faulty, time to ask for a refund. 

Earplug wrote: "TO MAKE MATTERS WORSE the white retangular item on crossovers get extremely hot like its ready to burn.It must be faulty"That is a 20W ceramic resistor and will get hot under normal use, but yes, no point messing around, just get a refund.

The white resistors get extremely hot to the touch(will cause a burn to finger if held for certain short time) smelling a bit after 20 or 30 minutes of play. Is this normal or will they burn out soon? I imagine they will or wont and you did mention its normal for resisters to get hot. Theres very little when H is wired to woofer. The terminals are H T W and are not shown as backwards. And im embarressed to say, im actually using 2 10" woofers as the mid ranges. When they were wired to my older crossovers, they were very loud to the point i had to lower the mid of the eq, but sound very faint on H of new crossover. 

So my final qu is, how hot can resistors on crossovers become? Is it normal for them to be extremely hot while playing hours a day, every day for months, years or will the crossover burn out in the matter of how long? How hot is too hot? I have to decide to return them or keep them, thanks.  

madboffin wrote: "I think something is wrong somewhere." Yes, the claimed power rating of that crossover board.50 Watts max, home stereo system...

Im using a 500 watt receiver and i used the new crossovers for only 50 minutes total and the resistors got so hot, actually the resistor of 2nd crossover got even hotter than other crossover that the black rubber on the coil melted a bit and on back of 2nd crossover looks like a slight burn. Any chance these crossovers are 4 ohms and not 8 ohms by looking at the picture and specs on page 1 of this thread or maby they cant handle a 500 receiver? My older 8 ohm crossover had for 15 years and still no problem with it sounds louder than new crossover, i wonder if new crossover is 4ohms? Thanks for replies.