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Having purchased a 1994 Kenwood music system from a Charity shop in 2013 (it was a high end product in its day), I found myself not quite knowing where to plug in what, and how to do this, that and the next thing. I needed a Manual, and after failure with another online 'Manual provider' I found Owner Manuals dot com. Well, I wasn't sure, but it was only $5, and if things didn't work out, I wouldn't have lost much...
But things DID work out. After paying my childrens inheritance money, $4.99, I was sent a Manual for my Kenwood System very quickly. Alas, it was in German, and being Scottish, I could not read it or get my system in order from it...a rapid email to them brought the English Manual in short order, and my retro-system was and IS up and running in it's regulation settings.
I am very grateful to http://www.owner-manuals.com for their quick service and for even having such an obsolete Manual in the first place! If you need a Manual for ANYTHING, try here first. I wouldn't be surprised if I bought a 1928 Marconi radio, and got the user Manual for THAT here too!
Top marks.
John Copeland
Glasgow
Scotland
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I was so happy that the owner's manual was available. It is well written and helped me to use the radio/CD player/recorder without problems. Thanks for making it available.
Irene Lambert
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Excellant!!! Very quick and easy....Best $4.99 I have spent in a very long time..
I highly recommend this.
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Thanks so much for the Owner's manual for my Sony PS - FL1. I had purchased the turntable off of eBay. It came in and looked great. Packed well and appeared to be great. I balanced and aligned the tone are and hooked it up. When trying to play a record the tone are would move to the right place and just before it would drop to play it moved back off the edge of the record before touching down. I searched the net for an answer to this issue. No luck. Then I purchased the owners manual and sure enough there was a place to adjust where the stylus touched down. That adjustment solved the problem and saved me a $35 feet to have the player checked out. The manual is well written and easy to understand. It is a must have for anyone with this front loading Sony turntable.
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Some years back I pruchased a Sansui G-9000. I had it cleaned up and a problem with the left channel repaired. When I got it back I hooked it up to my tape decks, turn tables, TV and it played great. The only thing I was not really satisfied with was the performance of my Graphic Equalizer. I purchased this owner's manual had poured myself a cup of coffee. The manual is well organized and written in plain language. It also contained the solution to my dissatisfaction. By using the preamp connections coupled I was able to run everything through my graphic equalizer and now enjoy the full potential of my complete system.
POWER-HANDLING LIMITATIONS
The power-handling capability of any woofer is related to both its ability to dissipate heat and the maximum excursion limits of its cone. Once the speaker�s voice coil moves outside the magnetic gap, power can no longer be converted into motion and all the amplifier�s power is converted into heat in the voice coil. This voice-coil heating is the largest detriment to speaker longevity, so overexcursion should be avoided. Since speakercone excursion is different for each type of enclosure, power handling is different for each enclosure. Sealed enclosures exert the most control over the motion of a subwoofer because the air inside the box acts like a spring against the motion of the woofer cone. Larger boxes allow for more excursion, thus providing more low-frequency output for the amount of power used. When placed in a sealed box much larger than the Vas of the subwoofer, it will perform as if it were in an infinite-baffle installation. Vented and bandpass enclosures have the lowest amount of excursion for the amount of sound output. This is a result of port output reinforcing the sound output from the woofer. The mass of the air contained in the port provides an acoustic load on the woofer�s cone at the tuning frequency, and this added mass decreases woofer-cone excursion. Vented boxes do not provide adequate woofer control when driven below the tuned frequency (Fb), so proper design is important. A vented bandpass box will have the lowest overall cone excursion provided a subsonic filter is used. � Voice-coil overheating and burning due to overexcursion are often caused by overdriving an amplifier into �clipping. A severely clipped � signal, or square wave, contains nearly twice the power of a clean sine wave at the same level. Bass that sounds broken up and distorted at higher volumes is usually indicative of an amplifier that is clipping and being asked to deliver power beyond its ability. � Infinite-baffle or �free-air� mounting applications allow for greater cone excursion than subwoofers mounted in an enclosure. In order to compensate, the power handling of the subwoofer will likely be half its rated power in this application. � Study the excursion curves on the enclosed Reference Series data sheet and note the differences for different enclosure applications. The type and size of box used will produce different excursion demands on the enclosed subwoofer and, consequently, different levels of power handling. As long as the recommended enclosure parameters are used, the subwoofer will perform properly in its enclosed environment. However, any design deviation may result in less than optimum performance, and may also subject the subwoofer to overexcursion (i.e., where the voice coil leaves the gap) that can eventually damage the speaker. For additional help with this issue, please contact your authorized Infinity dealer.
SPECIFICATIONS
Reference 1020w Configuration: Nominal Impedance: Power Handling: Sensitivity @ 2.83V/1m: Frequency Response: Mounting Depth: Cutout Diameter: Reference 1220w Configuration: Nominal Impedance: Power Handling: Sensitivity @ 2.83V/1m: Frequency Response: Mounting Depth: Cutout Diameter: 10" subwoofer 4 ohms 250W RMS/1000W peak 90dB 22Hz � 800Hz 5-1/2" (140mm) 9-1/4" (235mm)
12" subwoofer 4 ohms 300W RMS/1200W peak 92dB 20Hz � 800Hz 6-1/8" (156mm) 11-1/8" (283mm)
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