Printer Paper for Ambco Model 1000+ Audiometer with Printer




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  1. Womakin says:
    6 of 6 people found the following review helpful
    4.0 out of 5 stars
    60.9cs Install Comments, September 26, 2010
    By 
    Womakin

    This review is from: Infinity 609CS 270W (Peak) 6-1/2 x 6-3/4 Two-Way Component System Speakers (Pair) (Electronics)

    Built a system for my 2002 Yukon XL, I know, ok call it a Suburban. Room was an issue as I wanted no loss of utility in the vehicle, I found this was a compromise. Power is everything to obtain transparent sound that does not distort at even relatively high volumes. I chose the Alpine PDX-5 for three reasons 1) it had five channels at sufficiently high wattage 2) was very small and would fit under the left rear seat and 3) gossip was that although the specs quote at loose < 1% THD it would be clean. As far as amps go, IMHO there is no such thing as too much power because you only use what the volume requires, it is that simple. The Alpine is a good amp and my selection of speakers helped the amp a bunch.

    Chose two Infinity 60.9cs 2-way component systems sets with a pair in the front doors and a woofer in the rear door and its tweeter in the very back pillars. The Infinity’s have a very high Sensitivity (93 db@1 watt@1meter), therefore they are very miserly when it comes to power. The rule of thumb is every 3 db increase in volume requires a doubling of wattage so they are way ahead of say a speaker with a sensitivity of say 87. They are crystal clear and indeed I hear stuff in the music I don’t hear in other systems.

    The tweeters come with like (5) ways to mount them and the one that I love and worked for me was a threaded cylinder that has a mating basket that fits in it.. The cylinder permits varying the depth of the mount (out or into the plane) by inserting homemade spacers and the basket allows aiming the tweeter at what looks like up to 45 degrees! The tweeters I replaced up front are now directed right up to the front passengers, very powerful stuff.

    The speakers come with their associated passive crossovers. These things are clunky at best and I ended up putting a set under each rear seat. They could have been made with the corresponding components (for example the coil) being put with its driver (woofer) as an assembly which I would have liked. Regardless, they work very well as evidenced by the sound.

    For the bottom end I required a very shallow 8″ for my factory sub box. Among the vast number of 8″ out there (is there another?), I selected the Pioneer TS-SW841D. It turns out it is a feisty little guy and provides good bass down to 60 HZ, HUG. No really that is the 5 db down point in a closed box. It is way better than some 8″ in open air in many a car. What I found that was very important was setting the Alpine’s high- pass to the 60.9CSs to 75 hz and the sub low-pass to 75 hz. Otherwise there is a spike of bass that will give you a headache for sure. Later I plan to go with a Stealthbox but for now the 8 sounds just fine
    By the way, got a Pioneer DEH-P7200HD deck and media selection is phenomenal compared to factory. Need to use it for a while to be able to comment on usability.

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  2. I. Smart says:
    3 of 3 people found the following review helpful
    5.0 out of 5 stars
    infinity, April 10, 2009
    By 
    I. Smart
    (REAL NAME)
      

    This review is from: Infinity 609CS 270W (Peak) 6-1/2 x 6-3/4 Two-Way Component System Speakers (Pair) (Electronics)

    Infinity is a great product. I personally have found their speakers to be far superior to anything else out there. And the 2 ohm just kicks as*! Buy them. The price was great on amazon. Around a $100 cheaper than Crutchfield which is really no surprise. Discount Jungle was on it like skippy as far as shipping, awesome!

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