Old school stuff, What you guys have in your closet
01-15-2013, 04:44 PM
#101
0 Watt CAFz'r
Join Date: Oct 2012
Posts: 3
Just sterted collection series vii Hifonics Amps and old school Rockford Fosgate amps.
5 zeues
1 Thor
1 pluto
1 gemini
1 olympus
1 series Viii zeus
1 Rokford Power 1000C
1 MINT punch 45
1 MINT punch 150
I am looking to buy and willing to pay top dollar for any in excellent shape and working series VII ZEUS amp and Power 1000c amps
5 zeues
1 Thor
1 pluto
1 gemini
1 olympus
1 series Viii zeus
1 Rokford Power 1000C
1 MINT punch 45
1 MINT punch 150
I am looking to buy and willing to pay top dollar for any in excellent shape and working series VII ZEUS amp and Power 1000c amps
03-15-2013, 10:12 AM
#106
Dropped into an old skool stereo shop recently here in Toronto called Stereo king. They had all kinds of new old stock car amps, telephones and some stereo equipment.
Picked up a new old stock Mitsubishi CVX-3 amplifier, Made in Japan, fresh from 1986
Paid only $40 for it.
Here's the catalog from 1986.
Mitsubishi Car Stereo Catalog 1986 | eBay
Some pics:
Picked up a new old stock Mitsubishi CVX-3 amplifier, Made in Japan, fresh from 1986
Paid only $40 for it.
Here's the catalog from 1986.
Mitsubishi Car Stereo Catalog 1986 | eBay
Some pics:
03-07-2014, 06:12 PM
#110
2200 ohms is very low. What does this entail ?
Heres what I read:
Input Impedance:
The input impedance is the impedance (that the signal source 'sees') from the center conductor to the shield on an unbalanced input circuit. A typical input impedance would be ~10,000 ohms but some amplifiers may have an input impedance of more than 50,000. If the input circuit uses a mini DIN type connector, the input impedance could be measured from one signal terminal to the other or from the signal terminals to the shield ground. Ideally, the impedance should remain constant throughout the audio band. More than a few amplifiers employ some sort of high frequency noise filter which will cause the input impedance to fall slightly at the upper end of the audio spectrum. These filters are designed to reject high frequency noise from the amplifier's switching power supply. It should also remain constant regardless of the position of the gain control. Some amplifiers (especially budget amplifiers) will have varying input impedance when the position of the gain control is changed. Head units (or equalizers, crossovers...) with low output impedance will handle these variations better than standard head units. Generally, a head unit with high output impedance will have reduced high frequency response if the amplifier's input impedance isn't consistent across the audio spectrum.
Heres what I read:
Input Impedance:
The input impedance is the impedance (that the signal source 'sees') from the center conductor to the shield on an unbalanced input circuit. A typical input impedance would be ~10,000 ohms but some amplifiers may have an input impedance of more than 50,000. If the input circuit uses a mini DIN type connector, the input impedance could be measured from one signal terminal to the other or from the signal terminals to the shield ground. Ideally, the impedance should remain constant throughout the audio band. More than a few amplifiers employ some sort of high frequency noise filter which will cause the input impedance to fall slightly at the upper end of the audio spectrum. These filters are designed to reject high frequency noise from the amplifier's switching power supply. It should also remain constant regardless of the position of the gain control. Some amplifiers (especially budget amplifiers) will have varying input impedance when the position of the gain control is changed. Head units (or equalizers, crossovers...) with low output impedance will handle these variations better than standard head units. Generally, a head unit with high output impedance will have reduced high frequency response if the amplifier's input impedance isn't consistent across the audio spectrum.
Last edited by Rob; 03-07-2014 at 06:15 PM.
