Model #'s / designations

[duckman]

Newbie question here guys. Been around home audio most of my life but a relative neophyte regarding boomboxes.Can you tell me if there are any big differences (functional or otherwise) in units with different numerical/alphabetical designations. EG: JVC RC-M70JW, W, C.

Had a chat with hisrudeness through an Ebay listing we currently have listed and he assured me this would be a good place to seek some knowledge. Please understand that I am not looking for 'valuation' info in this query, smart enough to do that on my own, but rather a curiousity.

That said, we do have a few boxes we will be looking to unload in the near future and always look to get items into appreciative hands, though not all of them

Cheers

 

[blu_fuz]

JVC RC-M70LB also


It distinguishes what part of the world they were designed for. Voltage and wattage rating differences.

C - Canada
LB - Euro
JW - USA
W - ?

 

[Hisrudeness]

JW with RCA's Line in, Line Out, Phono.

LB with just phono and a DIN type


welcome!

 

[duckman]

Thanks gents. I had noticed on a Euro model of the M90L there was a difference in inputs (DIN) and also the beat selector had 3 settings compared to my C version having only 2.

So basically the same as the home audio designations along with colour differences also.

Happy to be on board !

 

[Beosystem10]

JVC RC-M70LB also


It distinguishes what part of the world they were designed for. Voltage and wattage rating differences.

C - Canada
LB - Euro
JW - USA
W - ?

Close. LB is UK spec, L is Europe.



Hello & welcome, new fella.

 

[caution]

I don't know if it counts, but the codeless model is Japan.
I noticed a 25W version of the M70W for sale. I'm thinking it's identical but the wattage was calculated differently for some reason.
[ebay]151475731851[/ebay]

 

[Marshall]

JVC RC-M70LB also


It distinguishes what part of the world they were designed for. Voltage and wattage rating differences.

C - Canada
LB - Euro
JW - USA
W - ?

Hello,
I just now started a new thread asking basically this same question; sorry I missed this one until it was too late.

One reason I wanted to know was one, knowledge for knowledge's sake and two, what this seller is claiming:
http://www.ebay.ca/itm/JVC-RC-M70-jw-boombox-EXCELLENT-with-LED-upgrade-/190569527041

M70C will not outperform this one


I'm assuming he's implying the "JW" version of the M70 to be superior to the "C"

I don't doubt you one bit 'cause I know jack about boomboxes, but If it's a U.S. market thing (for the "JW" suffix) then why does this box for sale have all the voltage options AND the 50/60Hz options?

Are there certain letter suffixes more desirable than others or is it still a matter of models on a case-by-case basis?

Thank you,
Marshall

 

[Michiel]

Close. LB is UK spec, L is Europe.

Don't know if this is true. I find L, LB and LD JVC versions here on the mainland. General rule is that if it has a DIN plug it's made for Europe. Many European rules for devices are based on the Deutsches Institut für Normung, rules like the way how to connect other devices to a second device (the DIN plug) or the method to measure input wattage.

The reason same devices have different input wattage is based on the way it's measured, dictated by the rules of the country the unit is sold in.

Inside the boombox you will find small differences, like the radio bands or the use of an electrical fuse inside the box.

 

[Beosystem10]

The M70L that I overhauled for a European member wasn't suitable for my supply (mean 253V over the past ten years) so all soak testing had to be done on a bench supply in work. Conversely, my super cheap Watson RR-5600 - marked up for 220V - has onboard regulation (courtesy of a pair of suitable Darlos and a cap, nothing too complex in there) that means its TX is providing the set with a very stable 14.4VDC in spite of the mains PD.
An LB version of the M70 bought recently from an eBay seller behaves properly on that ><253V supply and doesn't suffer even when the supply spikes over 260 as it can do during quiet times.
The only difference I can detect is in the mains TX as the regulation - such as it is - uses the same components.

 

[Michiel]

That's interesting John. I never measured the AC current over here, but I can confirm the W, JW, L and LB version of the M70 are all working like they should. They all sound the same btw