Wouldn't there be noticeable degradation of the sound, due to impedance mismatch, going from a headphone jack (probably 8-16 ohms per channel) into a tape or CD input (usually 100K or higher)? Unless greig774's iPod has a high-impedance output (which I doubt), the standard solution is an impedance-matching transformer to avoid distortion. Another problem is controlling the signal level with no meter to determine if the iPod is overdriving the input. Both these problems are very likely to result in poor audio quality for greig774.
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Re: WHAT TYPE OF AMP?
Probably the easiest way would be to use a stereo receiver. You can run the headphone output of your ipod into a tape or cd input. The only thing to deal with will be adapting a stereo 1/8" (3.5mm) headphone type jack to 2 RCA type input jacks. You should be able to get this cord at radio shack. You might also be able to purchase a receiver that has a 1/8" input jack specifically for connecting things like an ipod. A receiver, by definition, has a tuner built into it. The alternative would be a tuner and an 'integrated amplifier' which has power amps to drive speakers as well as a pre-amp and input selection switching.
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The connections are pretty straight forward, but it will depend on what amplifier you're driving them with. Normally, I'd connect the two TR to one side of a stereo PA amp and the two MR to the other side. All four cabinets are rated at 8 ohms, so running tow parallel per side would give you a 4 ohm load on each channel which would be a common load for most stereo PA amps.
However all this would depend on your gear and what you need to accomplish. If what your question really meant is how do you connect all 4 to one channel, you can't as in most cases the total impedance would be too low and you'll fry your amp.
If you can be more specific about your system we could be more helpful.
IF You don't have a separate external input jack. then you need to determine the overall impedance (ohm alottment ). so it will read something like 6, 8, or 16 ohm max. at that point look to see what your speaker output reads.(should be a plate on the speaker) if not, then disconnect speaker and put an ohm meter on it . it will give you a resistance reading , that is your ohms. so toadd a speaker, you must maintain not to exceed the rating. in hooking up. you can do it one of two ways. the first method woukld be , from the amp go positive to pos. side of speaker, and from the speaker neg. sid, go to the pos side of the speaker your adding . from the neg. side of that speaker go back to neg. side of amp. ( rthat is known as a series hook up. this doubles the ohm output of the two speakers ) - turns 4 ohms into 8, 8 into 16, etc. the other way is known as parallel. (from the amp take the pos.side and make a "y" and send those leads to each appropriate speaker. positive to positive. and do the same with the negatives. *this cuts your ohms in half. 4 int o 2, 8 into 4, etc. = hope that helps
you could add 3 more 8 ohm speakers in series / parallel wiring and keep an 8 ohm load to the amp, or
2x 4 ohm speakers in series, or
2x 16 ohm speakers in parallel
As long as the impedance of the speakers do NOT go below the rating of the amp you can connect them without worry Your amp would drive two 8 ohm speakers. Using the 16 ohm speaker it will only draw half the current and only accept half the power that one of the 8 ohm outputs can deliver.
Yes, you can put two 8 ohm speakers daisy chain per side MAX. The Speakon should have ONLY two wires on the +1 and -1 terminals unless you are using bridged mode which is NOT applicable in your configuration of speakers. Also be careful is you use any 1/4 inch speaker plugs in the sytem as the SLEEVE, not the TIP of channel A is the "hot" lead... get this to ground someplace and goodbye amp.
Well... you probably won't like this, but here is some info: In bridged mode, a different Speakon to speaker cable is required from only the B... it is wired differently and you can only use one of the plugs. The speaker or speaker system CANNOT be less than 8 ohms in bridged mode... this precludes using speakers in parallel or multiple speakers that are less than 16 ohm impedance... such speakers are NOT commonly available as most are either 4 or 8 ohm. There is a slide switch for bridged mode on the face of the mixer. Next thing you won't like... The 1200 Watts specification is PEAK power, NOT RMS... You can get 400 watts RMS per side USING 4 ohm speakers. If you use 8 ohm speakers, each of those will get 200 watts. I use this mixer myself and ALSO repair them. The voltage swing at the outputs is about +/-60 volts MAX (peak). This is about 40 volts RMS by the time the circuit LOSSES are taken into account. Across a 4 ohm speaker you get 10 amps times the 40 volts or 400 watts. Across an 8 ohm you get 5 amps or 200 watts. The voltage rails in the switching amp are +/-70 volts DC so these are reasonable values. Bridged mode just uses both sides of the amp driven in opposite directions for higher voltage out BUT you have to use no less than a single 8 ohm speaker so there is NO advantage to bridged mode power wise. IF YOU NEED more power, use extra speakers from an additonal amp driven by the 1/4 TRS mains output jacks OR use additonal POWERED speakers driven from the same jacks. Please read my tip about the hazard regarding the SLEEVE of the cahnnel A cable when using Speakon to 1/4 plug cables being the HOT and the tip being the cold for channel A. Ground the sleeve accidentally and goodbye channel A amp...
Sorry, but you have a problem. The amp is rated to 4 ohms per side. Your speakers would have to be 16 ohm type to allow 3 per side in parallel. The Bose ratings are usually consumer type ratings and they would have to be set to 200 watts each (twice the rating that the amp can produce per side) to be safe connected to that amp. Your speakers are likely 8 ohm so you could parallel ONLY two per side OR if they are 4 ohm, then you would have to series them. You could series two or three per side safely for the amp. You don't tell us what model Bose speakers you have. Anyway, one has to first meet the specs of the amp and the speakers to avoid damage. It is likely the amp is too BIG for the speakers. For the setup of the mixer portion of this problem I want you to view videos on YouTube. Search for "mixer setup". Don't worry that they are different mixers than yours... there is enough commonality and the functions are nearly the same for MOST analog mixers. Recommendation: forget about two of the speakers... keep them as spares and run low volume to avoid blowing the speakers. I can't imagine any competent audio equipment supplier configuring your system this way.
You best rewire the cabinet to put the two speakers in series. Wire one speaker plus to minus of the other and bring the other lead, one from each speaker to your jack on the cabinet. The amp output impedance is what is set on the switch... for two 8 ohm speakers you would use both jacks to the two speakers BUT ssince you have 4 ohm speakers the ONLY option is for two in series and set the switch to 8 ohms. The amp is ONLY 30 Watts so don't expect too much sound output... You should get a nice CLEAN sound at a reasonable level. If you drive the amp too hard it will clip and you will get garbage.
Yes, in bridge mode you will wire ONE Speakon that will have the two speaker wires connected to pins "1+" and "2+". You do NOT need the manual to do this, the info is right on the back of the PMP6000 itself. You will plug that Speakon into channel "B".
PLEASE note that you CANNOT go below 8 ohm speaker impedance. If your speakers are 4 ohm you MUST connect two in SERIES which requires special cables and the speakers MUST be identical. You can connect TWO 16 ohm speakers in parallel by daisy chaining, however 16 ohm speakers are NOT very common. With 8 ohm speakers you can connect EXACTLY one in bridged mode UNLESS you connect four of them in series-parallel which requires special cables and great care. Believe me you do NOT want to have an accident with this amp as repairing is extensive.
Lastly, put the speaker configuration switch down to the bridged mode.
This is how bridged mode works: Sliding the switch down basically configures the two power amps in monaural and one amp is inverted so there outputs are out of phase by 180 degrees effectively doubling the voltage.
Remember that BOTH wires in bridged mode are HOT and grounding one while amp is on will likely blow out one side or more.
First off it's outputs to your speakers. If you had an extra set of powered or amplified speakers you could "Y" cable your speaker outputs. Your passive speakers won't work without an amp. You really need powered speakers or an amp for your extra speakers. (if you had powered/amp'd speakers you could run them off one of you "aux" out for monitors. Do not daisy chain your speakers connecting twi together, you'll change the resistance/ohms and damage your speakers. Trust me, I do this for a living.