Katana - Speaker impedance ( 8 ohm minimum Load)

[pequenajo]

Hi guys. It´s correct???

https://www.boss.info/us/support/knowledge_base/115001797743/

"The BOSS KATANA-50 Speaker Impedance is 4 ohms at 50 watts."



I thought impedance was 8 ohms....

[admin]

If you own a Katana 50 - disconnect one of the speaker leads and directly measure the speaker's DC Resistance with an Ohmmeter and report back with the actual reading.

if it reads below 4 ohms it's a 4 ohm speaker

4 ohm speakers typically read 2.7 to 3.5 ohms  DC Resistance with an Ohmmeter

8 ohm speakers typically read 4.7-6 ohms  DC Resistance with an Ohmmeter

several have success connecting 8 ohms speakers to Katana 50 and that will not hurt the amp
Its closer to a 6 ohm Speaker in Katana 50

[gumtown]

This discussion was raised on another Forum, and I believe the outcome was the Katana 50 speaker actually measured out at 8 ohms.
The specification labelling may be a misprint.

[pequenajo]

8 ohm speakers typically read 4.7-6 ohms  DC Resistance with an Ohmmeter

Then...8 ohms....



I don´t understand why boss published this error on the website.

[pequenajo]

This discussion was raised on another Forum, and I believe the outcome was the Katana 50 speaker actually measured out at 8 ohms.
The specification labelling may be a misprint.

Thanks

[admin]

Then...8 ohms....



I don´t understand why boss published this error on the website.

Not the first time

[GuitarBuilder]

It may not even be that important, since solid-state amplifiers are typically not as sensitive to speaker impedance as tube amps.  In other words, you're not going to blow anything up by hooking up a different speaker.

[admin]

It may not even be that important, since solid-state amplifiers are typically not as sensitive to speaker impedance as tube amps.  In other words, you're not going to blow anything up by hooking up a different speaker.

Actually the Katana Power amp is NOT your typical SS power amp - instead its  proprietary class AB design and will overheat and be damaged if you connect speaker(s) less than 4 ohm load.

The Katana Power amp ( All Models) is NOT your typical SS power amp - instead its proprietary class AB design and will overheat and be damaged if you connect speaker(s) with 4 ohm load.

Two 8 ohm speakers wired in parallel ( like running the internal combo 12" and an external 8 ohm speaker ( or an external 2 x 12 cab) ( 4 ohms) WILL overheat the Katana Power amp (All Models )

_ 

[gumtown]

It may not even be that important, since solid-state amplifiers are typically not as sensitive to speaker impedance as tube amps.  In other words, you're not going to blow anything up by hooking up a different speaker.

Only if you connect a higher impedance (less load),
tube amps are a little more forgiving than SS when driven into a low impedance (overload),
but not so forgiving when the output is open circuit.

[BenoA]

Bumping this old thread up as that's something I had always been curious about and I pulled out my Kat original 50w speaker.

Don't know how to post a photo but did get 4.8 ohms as @pequenajo above.

[gumtown]

4.8 ohms D.C. works out to an A.C. impedance of about 6 ohms.

Kind of an oddball speaker in the 50 Watt Katana's

https://soundcertified.com/what-will-2-4-8-ohm-impedance-speaker-measure-dc-resistance/

Speaker impedance   DC resistance
1 ohm*                             0.5-1.0 ohms
2 ohms                             1.2-2 ohms
4 ohm                             3.1-4.0 ohms
6 ohms                             4.0-6 ohms
8 ohm                             5.7-8 ohms
16 ohms*                             12-16 ohms