I met a guy who was a Sanyo Dealer in the late 70's I'm typing as he talks....The M9994 came with BA521 output
chips that would be the early one. They issued a Service Flash that specified changing the output chips to
BA532/ Sanyo power ratings were in mw they were very honest about their power ratings so they seemed low
in comparison to competitors who did not use the rms system of power measurement. M9994 was 6000mw per
side. The M9998 was 8000mw per side and the MX920 was 13000mw per side. They never called them
boomboxes and I never saw any point of sale paperwork or catalogs that showed them being carried like a
Panasonic by Earth Wind and Fire. They were pictured in Home Settings on Shelfs or Furniture with a turntable
and sometimes external speakers. They alwyas called them Portable Home Music Systems. There was a neet
little book of all the new models each year it was maybe 8in wide and 3in tall. Kind of a miniture version of the
8 1/2 x 11 catalogs we had in our binders. The little ones we could give to customers so they could drool. We
would get these green sheets from the distributor that listed closeouts and reduced prices we could also get
signs and banners and stickers...I used to wear a Sanyo Auctorized Dealer Banner as a Cape. And I still have
one! I don't remember getting those single tear sheets like alot of audio stores had with just one model on
them. I guess I just wanted the books. Different ones covered audio/tv/home stereo/car audio. Infact alot of
the parts that found their way into boom box designs I remember seeing in car audio. The Lasonic and Conion
both use tape decks that were lifted from earlier under-dash car players. you'll notice most of these decks
have an additional bracket to hold them in the boombox. They may have been surplus for all I know. The chips
found their way into them too. As car audio was evolving much faster than boomboxes Sanyo had the best
chips in my opinion. The big TA chip can be found in the Conion 999. This was an easy way for companies to
play in the power race b/c by this time all the radios were on a 15volt supply so the car audio chips just fell right
in. I remeber the MX 960k aka BigBen never seemed to play as loud on batterys as it did on AC. I think their AC
power supply was higher than 15Volts. Maybe they used non car audio chips that didn't do as well...It was a
late unit. I remember the top would actually get hot if you blasted it for a long time...I think the top left side was
where the heat sink was. They was bi-amped affair with the 8 in woffer. I don't remember the power ratings. That was the last big Sanyo that I remember. It seems it was in production for less than a year or at least is was unavailable by late 1981 in the US. I ordered a service manual for one and it was stamped discontinued.
chips that would be the early one. They issued a Service Flash that specified changing the output chips to
BA532/ Sanyo power ratings were in mw they were very honest about their power ratings so they seemed low
in comparison to competitors who did not use the rms system of power measurement. M9994 was 6000mw per
side. The M9998 was 8000mw per side and the MX920 was 13000mw per side. They never called them
boomboxes and I never saw any point of sale paperwork or catalogs that showed them being carried like a
Panasonic by Earth Wind and Fire. They were pictured in Home Settings on Shelfs or Furniture with a turntable
and sometimes external speakers. They alwyas called them Portable Home Music Systems. There was a neet
little book of all the new models each year it was maybe 8in wide and 3in tall. Kind of a miniture version of the
8 1/2 x 11 catalogs we had in our binders. The little ones we could give to customers so they could drool. We
would get these green sheets from the distributor that listed closeouts and reduced prices we could also get
signs and banners and stickers...I used to wear a Sanyo Auctorized Dealer Banner as a Cape. And I still have
one! I don't remember getting those single tear sheets like alot of audio stores had with just one model on
them. I guess I just wanted the books. Different ones covered audio/tv/home stereo/car audio. Infact alot of
the parts that found their way into boom box designs I remember seeing in car audio. The Lasonic and Conion
both use tape decks that were lifted from earlier under-dash car players. you'll notice most of these decks
have an additional bracket to hold them in the boombox. They may have been surplus for all I know. The chips
found their way into them too. As car audio was evolving much faster than boomboxes Sanyo had the best
chips in my opinion. The big TA chip can be found in the Conion 999. This was an easy way for companies to
play in the power race b/c by this time all the radios were on a 15volt supply so the car audio chips just fell right
in. I remeber the MX 960k aka BigBen never seemed to play as loud on batterys as it did on AC. I think their AC
power supply was higher than 15Volts. Maybe they used non car audio chips that didn't do as well...It was a
late unit. I remember the top would actually get hot if you blasted it for a long time...I think the top left side was
where the heat sink was. They was bi-amped affair with the 8 in woffer. I don't remember the power ratings. That was the last big Sanyo that I remember. It seems it was in production for less than a year or at least is was unavailable by late 1981 in the US. I ordered a service manual for one and it was stamped discontinued.
