2 25amp fuses vs 1 50amp fuse
#1
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Car: RS
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2 25amp fuses vs 1 50amp fuse
While browsing amps the other day I saw a two channel one with two 25 amp fuses rated at around 1000 watts. Now ususally for this wattage I would expect one 40-60 amp fuse. Is the amp with two 25 amp fuses grossly overrated or is it maybe running 1 channel through each fuse and really possible of pushing what it says?
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Car: 86 LG4 & 92 TBI Firebird
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The power supply is probably drawing the current in though a parallel circuit, thus the fuses are additive. The 1000 watts is prolly not RMS, but some peak value.
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#3
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Car: 84 Z28
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The 1000 watts was probably achieved milliseconds before the flames shot out of it!
Be careful, there are no REAL standards by which amp manufacturers rate their amps. As long as it did it once, under extreme conditions, they can advertise it that way. I've really been impressed with what some amp manufacturers are doing when they give you a sheet where they actually tested your amp, tell how it did, power acheived, test conditions, etc... It's a good feeling to know exactly what YOUR amp will do!
(My Kicker amps all exceed the specs by s decent margin.)
Be careful, there are no REAL standards by which amp manufacturers rate their amps. As long as it did it once, under extreme conditions, they can advertise it that way. I've really been impressed with what some amp manufacturers are doing when they give you a sheet where they actually tested your amp, tell how it did, power acheived, test conditions, etc... It's a good feeling to know exactly what YOUR amp will do!
(My Kicker amps all exceed the specs by s decent margin.)
#4
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I myslef have a 4 channel amp that uses two 25amp blade type fuses. 600watt peak power. 300rms. I am using it in three channel mode (2 6x9's, 1 sub)
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84' Z28
New 350 Ci 4 Bolt Main with all L69/HO Parts
4 BBl Carb
160º Thermostat
K&N High Flow Filter
700R4 Trans
15X7 Standard Z28 Wheels, With 215/65R15 BF Goodrich Comp T/A HR4 Tires
Charcol in Color
no T-tops, but wish
New Head unit, JVC KD-SX750
New Kenwood 3-Way 6X9's KFC-6906S
New Pioneer Sub TS-W253C
New Jensen 4-Channel Amp XA-4150
As FiremanZ28 says "Friends don't let Friends Drive Mustangs"
Pic of my Z28, thanks to ZZ4 and his web page: Http://www.geocities.com/ukzz4iroc/z28camaro.jpg
#5
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My ZR600 has 3 30 amp fuses on the case. The main reason is that there aren't any 90 amp blade type fuses out there. In your case, there are 50 amp fuses, but only on the big blade styles, which would cost them more money to utalize.
As a matter of fact, when I wired that amp through my fuse block, I had an awful hard time finding 80 amp blade type fuses, and when I did I paid a fortune for them. What I did was to run 2 separate 8 gauge lines from the fuse block to the amp instead of a single 4 gauge. This way not only did the wiring off of the fuse block look much better (all the same gauge) but I was able to use 4 40 amp fuses, which are a dime a dozen.
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As a matter of fact, when I wired that amp through my fuse block, I had an awful hard time finding 80 amp blade type fuses, and when I did I paid a fortune for them. What I did was to run 2 separate 8 gauge lines from the fuse block to the amp instead of a single 4 gauge. This way not only did the wiring off of the fuse block look much better (all the same gauge) but I was able to use 4 40 amp fuses, which are a dime a dozen.
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#6
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Car: 84 Z28
Engine: 355 (fastburn heads, LT4 HOT cam)
Transmission: 700R4
Axle/Gears: 9-bolt, 3.27
My DX700 also has the 3-90A fuse setup. I ran 2 8 ga. wires, each fused with a 50A fuse. I had a 4 gang fuse block, and needed to fill it anyway, and all the same wire does look a lot better as Jim said.
BTW....The DX700 powering 1 solo 12 is awesome!
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BTW....The DX700 powering 1 solo 12 is awesome!
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Working on:
'84 Z28 LG4 305
Added dual elec fans.
145 MPH IROC Speedo
Building 430 HP 350
using primarily GMPP parts.
Block is in shop!
Starting to look like the Kicker poster child!
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