Im lost without the PW thread!!!!

[Kito]

I need to cut the grass if it would stop raining.

[Kito]

garbage day today

[Kito]

slow morning

[philwsailz]

I mowed Saturday, and all the rain we have had tells me I am in teh saddle tonight.... If I get it done tonight though, the weekend is free. I swear, all this year, with the lake this close and I still have not spent a real weekend there.... So much stuff in the way. I have tons I want to do to the boat, and I have run it a little, but I have not really done the whole wash and wax thing yet this year! I need to add my chip, I need to change out and add speakers, add an amp.... Lots to do...

[philwsailz]

On the boat stero, I am adding a set of the KM6500.2s. It will be interesting with no tower but you might recall my idea about using the wrap-around windshield's bimini mounting brackets. I need to get busy fabricating!

I am also going to try a test, I think. Kicker has a new line of full-range digital amplifiers. I am seriously considering testing out the new IX500.4 4-channel amp and the IX500.1 digital sub amp. I am going to use the IX500.4 4-channel in 4-channel mode for the in-boat KM6250.2 components, and then use another one in bridge mode on the KM6500.2s. Then I am going to try the IX500.1 on my two KM10 subs.

I love my marine amps, but I need to do this test to measure current draw... Folks who run jet boats like Yamaha and SeaDoo only have magneto charging, no alternators, so they have very different needs from an amp standpoint. These guys have a hard time with current draw, and I want to see where the efficiency gains really are.

[dingleberry]

Did you see my post about where to get warranty and service in TN? Harvey and I tossed a few emails around since last night. His last one said, "Parts want be a problem but to pay warranty labor it will have to go to a Tige dealer. "

I asked him to call me. That's crap and contradictory with what another TO member PM'd me...who is a dealer.

Maybe I'm getting Tige's warranty policy confused with PCM's...but I thought that they will reimburse the labor, at least at a rate they consider fair and reasonable (kind of like medical insurance payment based upon their choice of what reasonable charges are per procedure).

I am also going to try a test, I think. Kicker has a new line of full-range digital amplifiers. I am seriously considering testing out the new IX500.4 4-channel amp and the IX500.1 digital sub amp. I am going to use the IX500.4 4-channel in 4-channel mode for the in-boat KM6250.2 components, and then use another one in bridge mode on the KM6500.2s. Then I am going to try the IX500.1 on my two KM10 subs.

What??? Phil may bridge an amp???

I thought that was strictly verboten.

[zad0030]

post

[philwsailz]

What??? Phil may bridge an amp???

I thought that was strictly verboten.

Rules are made so that exceptions can be written.

In all of these boat audio forums, I have found you need to speak in generalities to get a point across without causing head-spin. I have alluded to, but never outright said that bridging was okay if you knew FOR SURE that the load you were presenting to the bridged amp never got below 4-ohms.

I will recommend always loading down a subwoofer amp. Woofers are almost purely DC resisive, as these days there are no reactive corssover components to cause an impedance dip. See how I always recommend a dual 4-ohm woofer for use with the sub section of a ZXM700.5????

Now where bridging gets you in trouble historiclly is with coaxial speakers where there is both a DCR that is lower than 4-ohms typically, (3.4 - 3.6 ohms usually) AND you have reactive elements ina crossover, specifically capacitirs and inductors which can throw wild impedance and phase fluctuations at an amplifier.

We designed the KM6500.2 from the get-go to be always, exactly, and no lower than 4-ohms in its operating frequencies. That way, when adding an additional pair of KM6500 mids, the impedance goes to 2-ohms ONLY, and never any lower. We did this primarily on behalf of the consumer, as they can buy an appropriate stereo amplifier and not have to change amps if and when the extra mids were added. For example if you buy a ZXM450.2 with a set of KM6500.2's you will deliver 150 watts per side at 4-ohms. Then later, when and if you add the KM6500s you will bump the power to 225 watts a side, and you never dip below 2-ohms, so you never throw your short-circuit or over-current protection.

As a result of smart consumer-friendly engineering on the front-side, we can safely recommend bridging when one is considering running more power to the KM6500.2's than you will get from a stereo amp at 4-ohms. Just know that when you commit to a 4-channel amp for the KM6500.2s that you cannot use that amp to add the extra KM6500 mids unless you turn around and put the amp back into 4-channel 4-ohm mode, at which point you will be delivering LESS power....

In this instance, the KM6500.2s are the exception to the age-old mantra I try to preach about not bridging, (except to subwoofers). It will be okay.

[dingleberry]

Okay. I'll believe you, Phil.

[zad0030]

Chatting live with att Rep... woo

[philwsailz]

See, I made your head spin, didn't I?????

[philwsailz]

Chatting live with att Rep... woo

The best way these days from my experience....

[thtrog]

See, I made your head spin, didn't I?????

YES

[thtrog]

It's almost lunch time.....

[zad0030]

Today could be 7 days in a row for me