Mac audio mac attack 600, 6 channel amp / subwoofer filter
Thankyou for yor kind offer.
I am meant to be setting this up for a friend.
When he told me I thought he just wanted a speaker wired up.
However when I came to look at the job I mfound this box was involved.
I believe all he basically wants to do, is to use this amp to drive a subwoof box. from his kenwood head unit (I have the details for this)
My querries are as follows:-
The ratings of the cables and power supply required.
Whether two or more of the channels can be "bridged", as we are only driving a single speaker, and how.
What is the use of the "hi" inputs with 3 pin miniture plugs,
as opposed to the expected "phono" inputs.
I shall take a look at the unit gain and come back with more specific info.
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An expert who has answered 20 questions.
Re: mac audio mac attack 600, 6 channel amp / subwoofer...
Hi dougal, The power cable size depends on how many watts the amp is rated at (realistic) RMS with all channels driven at 20 to 20K. Buy the largest cable you can afford as you never know when you may add another amp, Though with 6 channels it should handle almost any reasonable sound system configuration, such as, front, rear fill and the sub/s. 400 watts and less will do fine on 8 gauge wire. 500 watts or more should be using 4 gauge, with a distribution block. The ground should be the same size as the power wire, and solidly connected to BARE metal, keep it as short as practical. Use good quality terminal connectors throughout.
The (HI) inputs simply means, using the speaker output from the head unit, as opposed to the RCA connectors.When purchasing the RCA cables don't be fooled by all the fancy high dollar one's, unless cosmetics are important to you. $5.00 cables will sound just as good as the $25.00 ones. ( The marketing dept. hates that truth. )
You can bridge any two channels as long as they are the matching right and left pair. Look at the amp, usually the rears are the most powerful and have a low frequency crossover. The woofer impedance and whether it is single or dual voice coil will determine the speaker wiring.
If the woofer is a single voice coil, 4 ohms... The positive terminal on the speaker goes to left positive, on the amps left channel terminal. The negative speaker terminal goes to the right channel negative on the amp.
If the woofer has two 4 Ohm voice coils, Parallel the terminals on the speaker. Pos. to Pos. and Neg. to Neg. and then wire as explained above it will present a 2 Ohm load to the amplifier, any good amp can handle that. If in doubt check the specs. I hope i was of some help. Regards, S.
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yes, the amp can be used fof full range speakers. to use it a s such, the amp's "crossover" switch must be set to "off" (could also be labeled as "full-range" or "defeat").
the amp is 2 channel. 4 channel is for surround sound or to have independent front and rear channels/volumes. this 2 channel amp will support 4 speakers, but you wont be able to balance from front to back- the front and back speakers will be at the same volume all the time if both are hooked up to the amp.
Unfortunately, you can't just hook those speakers to your TV or DVD player. Those devices only offer "line-level" audio outputs that aren't strong enough to drive loudspeakers directly. Those outputs are meant to be fed into the inputs of an amplifier of some kind, and then the speakers are driven by the amplifier.
On some TV sets there may be an external speaker connector, but the amplifier isn't meant to drive serious speakers. The manufacturers intend those to be used with optional soundbars or speakers they want to sell you. Use them with "real" speakers and you might wind up damaging the amplifier over time.
So the real answer to your question is "no kind of cable". If you do get an amp or home theater receiver, you'll need audio cables with RCA plugs from the sources to the amp, and regular speaker cable (18-gauge, and don't waste your money on "Monster Cable"!!) from the amp to the speakers.
It depends on the box you are installing them in. If you're going for sealed box they you can put 600-800 watts on them as long as you're careful with the gains and bass boost off. In a ported enclosure I wouldn't put more than 600 rms on them and still be careful with the gains. set your filter on your amp to about 80 hertz and match it on your source unit.
Depends on what kind of music you like, however I wouldn't go too much above 100 Hz. I have one of these and I run my sub channel from my deck at 80 Hz. Subwoofers are meant to reproduce low frequency energy, anything else is just going to be dissipated as heat, which is bad.
JL W6's will perform well with from 150-600 watts RMS. W7's with from 150-500 watts. Less expensive Alpine Type R's work OK with from 200-500 watts RMS. Either of the brands will sound good. None of them will perform to their full potential with 300 watts RMS. Powering any sub with a 2-channel amp is a compromise. A monoblock is more efficient.
Your question appears under the product listing for the Dual XPA4100 but the in the text you say the amp is actually a Jensen, so it's not possible to provide specific connection information.
But most bridgeable amps can be connected to a single subwoofer and the other two channels used to drive a set of regular speakers. I'd connect the front speakers to channels 1 and 2 and wire the subwoofer to the bridge connections of channels 3 and 4. On the XPA4100, the bridge terminals are the first (negative) terminal on channel 4 and the last (positive) terminal on channel 3.
Look into competition lines of different manufacturers.... Massive Audio DMX, Soundstream, Atomic APX, Incriminator Audio Death Penalty Series, Kicker Solo X etc. In car audio, you have to pay to play. Dont expect a 100.00 subwoofer to take 2000W continuously.
Massive Audio offers a no questions asked warranty. Even covers blown voicecoils!
If you can't locate them, I could walk you through it. It would take a complete description of your current system and what you hope to achieve, if anything. High quality pics of all amp connections and controls followed by a phone call. Having done several thousand installs, I have pretty much seen everything, but with 6 channels and internal x-overs it gets a little complicated, but definitely do-able. Let me know Regards, Paul
On your amp, there should be a switch (on the side probably) that has "LP", "HP", and "FULL" or "OFF". This is a switch for the low pass/high pass filter. Switch it to "LP" as this will allow only low frequencies to go to your subs, what you want. If you don't have that switch, go to an audio store or online audio supplier and get either a low pass filter, band pass filter, or a cross-over, and follow the wiring diagram that comes with it to filter out the high frequencies before they get to your subs.
I can't find any documentation for your amp; it was made when Jensen was owned by Recoton, and they're no longer in business. With any 4-channel amp, you can't bridge all four channels into a single channel. What you can do, if you're connecting it to a single sub, is to bridge two of the channels into one channel and leave the other two channels unused.
It doesn't usually matter which two channels you pick, but some 4-channel amps designate channels 3 and 4 (or rear channels) for the subwoofer. Whichever ones you use should have a "LPF" or "LP" crossover setting available.