Libertus

Hi Dean, You replaced the original tweeters bij New Large Advent tweeters. Can you give me the type and specifications. You said no coil, only 7uF capacitor, if I understatement it well. And what about the resistors in the tweeter circuit? Regards, Libertus

Thank you, It is as you described. I noticed only the coil is 0,6mH in both Marantz 5 (without Imperial) woofer with paper cones and rubber. Tweeter the same model as in the Marantz 6, only smaller and smaller magnet. I measered all component from Marantz 6 Imperial also, in one I replaced the resistors (1%,10W) and Capacitor 7uF. I did not hear any differance with the one not modified. So I replace the original components back again. When you have heared a Marantz 6, the Marantz 5 is disapointing. But overall I like more the AR3a. Thank you for all information, Libertus

Hi, I managed to open your pdf. I noticed 1 speaker is as in the pdf diagram, in the other one, the wires are wrong. So I re-wired them. Do you have also a pdf diagram from Marantz 5 model. I checked the wires and noticed the woofer has no crossover frequentie and is directly connected to the input terminals. Regards, Libertus

Thanks, I had to download a pdf app

I can not open the Imperial 6 schematic.pdf. Can you post this attachment again.

Hi thanks, According crossover board Marantz Imperial 6 I have (seriële nr's 27807 and 27819) the woofer is in serie with a 4 ohm resistor, this resistor is in parallel with coil 1.0mH. If the switch is in normal position, 7uF is in serie with 3 ohm resistor and tweeter. The tweeter is in parallel with 8ohm resistor. The 0.6mH coil is only used in the decrease position in parallel wit a 6 ohm resistor Regards, from the Netherlands PS: I have also a Marantz 5 Very strange the woofer is not connected to the 1.0mH coil, but direct at the plus and minus connectors.

Hi, according the imperial 6 I have, is the coil over the tweeter only active in switch position decrease. Plus the 6ohm resistor parallel to this coil.