I hope to find this presentation helpfully especially for those who by the unit from a econd hand market as this unit now is discontinued? belongs to history as one of thrilling units together with Optimod 8100A1.
story began long time ago at about 1975 when the founder of Modsci Mr. Eric Small
cooperates with Mr. Bob Orban on design of Optimod 8000 until the early of 8100 on 1981
(then come Mr. Greg Ogonowski). Eric also help on design of the AFC Fm filter Card or Card
#0 for 8100A1, this extra filter protect the subcarriers i.e. SCA or RDS from the
“splatter” of safety hard final clipper, it also reduces any residual overshoot by
about 6%. Actually this Card # 0 has the same effect as an Composite Clipper.
from the “splatter” of safety hard final clipper, it also reduces any residual overshoot by about 6%. Actually this Card # 0 has the same effect as an Composite Clipper.
Here what Bob Orban says
about this cooperation trough the history of Optimod 8000.
What’s all about?
to know what is that? With details? Here the
User Manual but only the document which explains everything directly from the
manufacturer of Stereo Maxx. Unfortunately I do not have permission to publish schematics
or diagrams (it’s a company policy) but you can downloaded it from Modsci website Here. Probably
without his and others great passionate purists contribution (cornerstone) the sound of
broadcast media will be suffer from Low Fi? results.
Probably without his and others great passionate purists contribution (cornerstone) the sound of broadcast media will be suffer from Low Fi? results.
I really need this or other brand Spatial Enhancer?
Actually Yes & Not. The Stereo Maxx by himself did not solving you any separation problems. Like other similar units simply add an effect an illusion that the stereo image is larger than life :-) "is more noticeable on cars and not on headphones" with its “pro and con” so it’s a matter of taste to use this or other brands stereo spatial effect.
If you thing that your overall
on air stereo image Is not so wide & solid as others on air radio stations, first
thing to do is to make a detailed separation test, from console trough exciter including
STL & Processing Box. Or you must need to upgrade all your audio side chain (if it’s
old) including the Tx path i.e. STL fm exciter etc.
My results & opinions
I use this unit for about 7 months; it was ahead of my upgraded Optimod 8100A1/XT2 (XT2 is back on its original first XT version with split band 5 from 6) Soon I discover that actually I don’t need such effect on my audio side chain, never I like to use the “depth” control which it was always close because I notice some strange audible side effects especially on solo recordings i.e. piano, at the end of each note I hear some noise which is added from digital delay effect of the unit.
Else is an very durable constructed unit with excellent parts on audio path i.e. Silver Mica capacitors, Tantalum by pass capacitors, precision metal resistors, bulk mains transformers, split power supply for Digital’s, all the pots are sealed type high quality BOURNS, excellent way of metering, for enhance & limit of L-R VCA a fine 2151 type from DBX, in digital domain use excellent A/D converters from Analog Devices & Siliconix.
As a line buffer the unit sounds pretty good did not alter the quality of in / out audio, is much better with an optionally electronically balance out circuit rather than good Jensen audio transformers, for any isolation problems is the best solution.
Stereo Maxx is co operate harmonically with
every kind of known processing on air audio. But beware do not overdoing it. With too high L-R enhancement will suffer
the mono compatibility of your station. I must remind you the golden rule “Less
is More”. Good luck.
I must remind you the golden rule “Less is More”. Good luck.