Performance & Hotrod Business May '14

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May 2014 n Performance & Hotrod Business n 63 John F. Katz is a free- lance automotive jour- nalist and historian. He is a regular contributor to Performance & Ho- trod Business as well as other automo- tive industry publications. He lives and works in south-central Pennsylvania. variety of battery terminals, including the new UBT-840, which connects to the factory cable—no need to cut anything—while providing additional ports for 0-, 4-, and 8-gauge cable. KnuKonceptz has also introduced a vibration-dampening material called KnoKnoise. KnoKnoise dampens panel vibrations caused by the sound system—or by other sources such as wind, road, or mechanical noise. "Making your interior quieter improves the sound quality of the audio system you've just installed," says Greenberg. Sheets of KnoKnoise are easily cut to shape; then peel off the backing and apply. Jobin also cites the importance of soundproofing: "Understand that the more soundproofing generated in a potentially confined space, as well as less current taxing the electrical sys- tem of an older vehicle. "Additionally, smaller amps offer more flexibility in mounting location." Electrical as well as physical issues need to be considered also; cars and trucks built before the 1980s weren't wired for more ste- reo wattage than most people have in their homes. Some things haven't changed. "Despite all the new technology out there," Haynes observes, "you're still dealing basically with 12-volt power and an audio signal. But if you're planning on putting 1,000-watt am- plifiers in an older car, you better make sure you have a battery and alternator that are up to the job." "It takes power to make power," adds Jobin. "Hot rods and classics may have a minimal alternator—or even a generator— so you do not want amplifiers that draw a lot of current. The efficiency of our KICKER PX amplifiers is above 90 percent." And the amps are "about the size of a brick," making them "hot rod-friendly, as they can be hidden in previously impossible locations." Some super-high-wattage systems may require some beefy cable connected directly to the battery. So KnuKonconeptz offers a • Top ring and oil ring faces coated with ceramic PVD for superior scuff and heat resistance • Top ring and oil rings made of gas nitride hardened stainless steel • Second ring made of ductile iron with Napier profile for optimum oil scraping ability • Compatible with all racing fuels and injections Engine Pro's New NITRO Black Racing Rings Outlast the Competition For more information go to that can be applied to a vehicle, the more 'effective' the stereo system will be. Good door and window seals, energy-absorbing material under the headliner and carpet, and a quieter exhaust will all allow the ste- reo to be better-heard while cruising down the road." He recommends maximizing sound- proofing first, then "once the noise floor is lowered," a system can be custom-designed for the improved acoustical environment. "Of course," Jobin continues, "if the ve- hicle retains all the visceral attractions of a true hot rod, then the stereo will need to be bigger, heavier, and draw more current to be heard over the background noise. Many of the good stitchers working to- day understand audio better than they did years ago, and can help with suggestions regarding what works and what doesn't. So make sure you consult with your interior person before installing any audio gear." Sounds good to us. New high-tech audio systems are small but de- liver big sound and usu- ally fit within the limited confines of many vintage hot rods. PHBMAYp58-91.indd 63 4/2/14 1:53 PM

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