Captor X impedance curve

simon_d

simon_d

Member
Hi. Does the Captor X and Captor have the same impedance curve? Is the reactive hardware identical in both?
 
Good morning Simon,

Ross from Two notes here! Both Captor and the Captor X share the same loadbox design and as such feature the same impedance curve. Let us know if there is anything else we can clarify for you today!
 
RossJohnDavies said:
Good morning Simon,

Ross from Two notes here! Both Captor and the Captor X share the same loadbox design and as such feature the same impedance curve. Let us know if there is anything else we can clarify for you today!
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Thanks for the info Ross, that's exactly what I wanted to know! I have a Captor and wanted to know if the Captor X was improved on load side of things. I've had an issue with the way my JVM 410h worked with the Captor.

I'm sure I saw somewhere that the impedance curve is U shaped, similar in principal to OX and TAE. Is that correct, and do you publish the data at all?
 
Hi @simon_d

Thanks for getting back to me. There is a U shape on the impedance curve but we do not publish this. In actuality we find it a little misleading as there are EQ controls built into our units which alter the perception of the response. May I ask what the context in which you are using our loadbox is please?
 
RossJohnDavies said:
Hi @simon_d

Thanks for getting back to me. There is a U shape on the impedance curve but we do not publish this. In actuality we find it a little misleading as there are EQ controls built into our units which alter the perception of the response. May I ask what the context in which you are using our loadbox is please?
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Hi Ross. Mainly for attenuation, but also into a DAW for recording. On my JVM I was experiencing odd ghost-like notes under some notes, but not on other amps, and only when using the Captor. Is the attenuated out taken from the main load in some way or is it just resistive?
 
Good morning @simon_d

Thanks for getting in touch. The attenuated out is taken post load and it sounds like this may be what we refer to as the magnifier effect - this is usually more apparent on clean tones and we have an article here that details this: https://www.two-notes.com/en/knowledge-base/how-to-achieve-a-great-clean-tone-with-a-torpedo/

I would however ask that you contact our help desk as one of our specialists can run a deep dive on your rig and Captor to ensure everything is operating within our specified parameters. Please head over to support.Two-notes.com and a member of the team will be glad to look into this for you.

Thank you!
 
RossJohnDavies said:
Good morning @simon_d

Thanks for getting in touch. The attenuated out is taken post load and it sounds like this may be what we refer to as the magnifier effect - this is usually more apparent on clean tones and we have an article here that details this: https://www.two-notes.com/en/knowledge-base/how-to-achieve-a-great-clean-tone-with-a-torpedo/

I would however ask that you contact our help desk as one of our specialists can run a deep dive on your rig and Captor to ensure everything is operating within our specified parameters. Please head over to support.Two-notes.com and a member of the team will be glad to look into this for you.

Thank you!
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What is the consequence, theoretically speaking, of the amp having the captor load and then a cab load added to it when using the attenuated output? Does it mean the sound has the U shaped curve imposed on the cab impedance curve? Or is that signal is compensated for with EQ internally on that output? I notice the sound is more scooped and fizzy.

The issue I had with the JVM is with distorted tones through the cab not clean tones btw. I'll try support to check it's working correctly.
 
Hi Simon,

Thanks for getting back to me. When using an attenuation mode on the Captor, your Amp will only see the load of the Captor and therefore the impedance curve of the Captor will be impacted through your speaker. There may be some further impact applied by your cabinet, however this will be minor. What attenuation setting are you using out of interest?

Kind regards,

Ross
 
RossJohnDavies said:
Hi Simon,

Thanks for getting back to me. When using an attenuation mode on the Captor, your Amp will only see the load of the Captor and therefore the impedance curve of the Captor will be impacted through your speaker. There may be some further impact applied by your cabinet, however this will be minor. What attenuation setting are you using out of interest?

Kind regards,

Ross
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Thanks for the info Ross.

There is only one setting on the original Captor, the -20db speaker out jack. So is that output achieved with just a resistor off the main load, and nothing more complex?

The other reason to consider the Captor X was the extra attenuation available. -20db isn't enough to get a 100w amp such as a JCM800 2203 in the zone at home volumes.

There doesn't seem to be a device that does variable attenuation, (accurate 4x12 speaker impedance) and IRs all in one box, apart from the Boss TAE, but there appears to be safety concerns with that device with some knowledgeable people suggesting there is no load on the OT at low frequencies. It has a U shaped curve. This is what prompted me to enquire about the Captor impedance, but I've not heard anyone suggest it isn't safe.
 
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Hi Simon, Thanks for getting back to me.

I have just sent a message to our technical team and will loop back with you regarding this as soon as I hear from them!

In the meantime, if there is anything else I can help you with, please do not hesitate to let me know.
 
Hi Simon, Thanks for bearing with me while I looked into this for you!

The attenuated output is derived from the main load with an attenuation resistor between the main load and the connected speaker.

Please let me know if there is anything else I can help you with.
 
RossJohnDavies said:
Hi Simon, Thanks for bearing with me while I looked into this for you!

The attenuated output is derived from the main load with an attenuation resistor between the main load and the connected speaker.

Please let me know if there is anything else I can help you with.
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Many thanks Ross, exactly what I wanted to know.
 
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