[opnly bafld]

A and B speakers outputs; 16, 8, 4, ohm outputs; speaker biwire outputs.

[scottschecter]

A and B speakers outputs; 16, 8, 4, ohm outputs; speaker biwire outputs.

The Franks had nominal Impedance from 3 -16 ohms on both posts. A/B and biwire use cases make sense. Thanks for that.

[sunnydaze]

For my own edification, why do manufacturers include multiple speaker level outs then?

To present different amp output impedances to the speakers.  4 and 8 ohm posts on the amp are most common.

Or, if both posts are the same output impedance, to make it easier to bi-wire.   Sometimes, 2 spades are hard to attach to the same post.

[pstrisik]

Seems like you could just run cable to your main speakers and the the subs from there.  My subs are close to the mains.  Some don't do it that way.  I use the subs' low level inputs from the preamp anyway.  So I guess I'm "just sayin'". 

         ......Peter

[sunnydaze]

Seems like you could just run cable to your main speakers and the the subs from there.  My subs are close to the mains.  Some don't do it that way.  I use the subs' low level inputs from the preamp anyway.  So I guess I'm "just sayin'". 

         ......Peter

I sometimes do it that way too......

spkr cables from main amp to main speakers;  then cables from main speakers to sub

[scottschecter]

Spoke with Louis today and ordered the Super Alnico High Output XRS in Real Walnut . Louis was super helpful and a pleasure to chat with.

[Doodlebum]

Wow, I would love to have those. Great choice! I just got the super8XRS jrs. I'm very happy with them, no harshness at all, super detail and fantastic bass. I can only guess how good the ones you ordered will sound.

[jmolsberg]

nice choice..  which SET did you decide on? i use a decware zen/zrock2 with my 3xrs HO, but lately i've been running it with 1 watt LTA MZ2/zrock2, and man it is impressive.

[scottschecter]

nice choice..  which SET did you decide on? i use a decware zen/zrock2 with my 3xrs HO, but lately i've been running it with 1 watt LTA MZ2/zrock2, and man it is impressive.

Based upon the sage wisdom of MarkR7 I went with the Coincident Frankenstein M300b mkII mono blocks. Can't wait to hear how everything sounds together once it all arrives.

[jmolsberg]

Here comes an exercise in patience

[scottschecter]

Here comes an exercise in patience

So true!

[Camus]

On these speakers it lists the impedance as 4-6 ohms, my 300B amp only has an 8 ohm speaker tap. I have read and been under the impression that when the speaker present a lower impedance it requires the amp to work harder, how much of a mismatch would this end up being despite the  97dB sensitivity?

Thank you for helping me better understand the impact of the less than 8 ohm load!

[opnly bafld]

On these speakers it lists the impedance as 4-6 ohms, my 300B amp only has an 8 ohm speaker tap. I have read and been under the impression that when the speaker present a lower impedance it requires the amp to work harder, how much of a mismatch would this end up being despite the  97dB sensitivity?

Thank you for helping me better understand the impact of the less than 8 ohm load!

I don't think the impedance itself is a problem, but how the bass may sound with your amplifier. What is your amp?

Suggest calling/emailing Louis.

[Camus]

I don't think the impedance itself is a problem, but how the bass may sound with your amplifier. What is your amp?

Suggest calling/emailing Louis.

Thank you for the input and suggestion!

It is a custom built 300B using C3G as input tubes and a GZ34 rectifier. The output transformers are Hashimoto, all the transformers and chokes are Hashimoto. It has 32 ohms tap for headphone output, then the 8 ohm speaker taps on the transformers.

[opnly bafld]

Thank you for the input and suggestion!

It is a custom built 300B using C3G as input tubes and a GZ34 rectifier. The output transformers are Hashimoto, all the transformers and chokes are Hashimoto. It has 32 ohms tap for headphone output, then the 8 ohm speaker taps on the transformers.

Sounds like a very nice amplifier.
Hashimoto OPTs usually have multiple output taps, if yours does you can move it to 4 ohms.

[seikosha]

On these speakers it lists the impedance as 4-6 ohms, my 300B amp only has an 8 ohm speaker tap. I have read and been under the impression that when the speaker present a lower impedance it requires the amp to work harder, how much of a mismatch would this end up being despite the  97dB sensitivity?

Thank you for helping me better understand the impact of the less than 8 ohm load!

Your amplifier will be fine, I suppose it’s possible that it won’t be able to quite put out its full output, but you’ll still have plenty of power for that speaker if your listening levels are reasonable.

[Camus]

Sounds like a very nice amplifier.
Hashimoto OPTs usually have multiple output taps, if yours does you can move it to 4 ohms.

It’s been great with headphones, unfortunately I haven’t had a set of speakers sensitive enough to match up to it 
The manner the amp is built I have no direct access to the portion of the transformer with the various taps available, which from the spec sheet it does not have a 6 ohm tap….

Your amplifier will be fine, I suppose it’s possible that it won’t be able to quite put out its full output, but you’ll still have plenty of power for that speaker if your listening levels are reasonable.

Thank you for the insight on power output, I live in a condo so no blasting out AC/DC or such at high volume!

Any reason these particular speakers list 4-6 ohms? I know speaker loads can sometimes dip below their stated rating, never came across a spec with a range before.

Upon more thinking, the obvious solution is the Junior XRS as those are listed as 8 ohms, however I don’t want to have any misgivings if I can find a way to use the SAHO XRS with my amp.

[opnly bafld]

Any reason these particular speakers list 4-6 ohms?

2 drivers in parallel.