What are the most common ways to use impulse response files?

A) With Software Virtual Amps

There are two primary methods of application here:

I. Standalone
Connect your electric guitar/bass to a DI/Mic Pre then to analog to digital conversion interface (line in of sound card, firewire/usb interface, etc) or into the instrument in section of an all inclusive or proprietary interface. Once you are able to get your instrument's output "in the box", you will need to launch a standalone amp sim application/program that has a convolution reverb engine capable of loading external impulse files. Simply navigate to the cab/speaker simulation portion of the host and search for a button that will allow you to open external .wav files.

II. Plugin via DAW Host:
Get your instrument "in the box" as mentioned above, but now you will need to launch the virtual amp sim plugin on the audio track that you are capturing the instrument on, or on a bus that the instrument track is being sent to. You can load the impulse/library either (a) through the convolution reverb engine built into the virtual amp sim plugin (if it is capable of loading external files), or (b) by disabling the cab/speaker simulation in the virtual amp sim plugin and placing a convolution reverb plugin instance after the virtual amp sim plugin either on the same track or on a bus that the track is being sent to.

If the convolution reverb host has a "Wet/Dry" mix knob, setting it to 100% wet will force all of the sound through the cab/speaker impulse, and is the desired setting in most applications.

If you are unaware if/how you can load impulses/libraries into your host of choice, please see the documentation for that product provided by the respective developer.

B) With Guitar/Bass Preamps, Amp Modelers, and Processors

Connect your electric guitar/bass to a preamp/signal processor and into your conversion interface. Make sure that if you are using a digital modeler that you turn off any cab/speaker simulation. Once the signal is "in the box" you can load the impulse/library within your DAW host either by placing a convolution reverb plugin instance on the audio track or on a bus that the track is being sent to. If you are using only a tube guitar preamp, you will need to also place some form of power amp simulation in the chain before the IR.

If the convolution reverb host has a "Wet/Dry" mix knob, setting it to 100% wet will force all of the sound through the cab/speaker impulse, and is the desired setting in most applications.

C) With Guitar/Bass Amps

Connect your electric guitar/bass to an amplifier head or combo. Connect the speaker out of the amplifier with a SPEAKER cable to a dummy load that (a) is rated at the same impedance you are sending out of the amp (b) is rated at DOUBLE the wattage of the amp you are sending from, and (c) is equipped with a line out. It is recommended that even if you are attenuating at 100%, a speaker cabinet of the same impedance rating as the amp out and dummy load is connected via a SPEAKER cable to the dummy load's speaker out/through UNLESS IT SPECIFICALLY STATES THIS IS UNNECESSARY IN THE USER MANUAL OF YOUR DUMMY LOAD. Turn the line out volume of the dummy load to zero, and connect the line out of the dummy load to either the DI/line level in of a mic pre or to the line in of your audio interface. Set the amp where you like, then slowly turn up the line level volume on the dummy load. Once you have your sound "in the box", you can load the impulse/library within your DAW host either by placing a convolution reverb plugin instance on the audio track or on a bus that the track is being sent to.

If the IR loading host has a "Wet/Dry" mix knob, setting it to 100% wet will force all of the sound through the cab/speaker impulse, and is the desired setting in most applications.

As stated in section "4. Disclaimer." of the Terms of Use Agreement for OwnHammer.com, all of the above does not constitute professional advice, and OwnHammer, LLC holds no liability to any damages you may incur from use or misuse of this information. It is your responsibility to evaluate the accuracy and completeness of this information, and apply it at your own risk.

Can I use OwnHammer IR's with...

...Line 6 Helix platforms?

Yes, please see ownhammer.com/tutorials/helix and/or the associated User Manual of your platform from the Line 6 website for more information.

...Fractal Audio Systems platforms?

Yes, please see ownhammer.com/tutorials/fractal and/or the associated User Manual of your platform from the Fractal Audio website for more information.

...Kemper Profiling Amp platforms?

Yes, please see ownhammer.com/tutorials/kemper and/or the associated User Manual of your platform from the Kemper Amps website for more information.

...Atomic AmpliFIRE platforms?

Yes, please see the associated User Manual of your platform from the Atomic Amps website for more information.

...Scuffham Amps S-Gear?

Yes, please see ownhammer.com/tutorials/sgear and/or the associated User Manual of your platform from the Scuffham website for more information.

..any other outboard platform or DAW software not mentioned above?

Yes, so long as they accept mono .wav format convolution reverb IR's at the lengths and sample rates described on the OwnHammer product pages. The technology structure that the OwnHammer impulse responses function off of is common and not proprietary. Just make sure that you're utilizing the correct sample rate of files, and check your loading software or hardware manufacturer for instructions on importing files.

If in doubt, just try the free OwnHammer library at ownhammer.com/free


OwnHammer DOES NOT directly support 3rd party OEM's or their file loading procedures, nor serves the function of volunteer outsourced Google search contractors. If information on additional platforms beyond the listings of the Tutorials area (ownhammer.com/tutorials) is desired, check with said platform provider and download/try the free OwnHammer library mentioned above if you have any uncertainty prior to purchasing a commercial library from the OwnHammer website.

Do you accept other payment methods besides PayPal?

No, but the framework used is PayPal Express Checkout which does not require a PayPal account (in most countries) - credit cards can be entered in just the same as if PayPal were not involved in the process. To this end, this also allows for payment by other PayPal specific payment types such as PayPal Credit and PayPal Balance. Payment by eCheck, however, has been disabled.

During the payment process, I am sent back to the website without order confirmation, nor are the files in my account.
A) Was I charged?
B) What is the issue and how do I complete an order?

A) No
B) There is a 99.9999% chance you are generating a PayPal 10486 error. The most common reasons for this are that the credit card does not have enough balance on it to cover the order, that the card is expired, that there was an error in entering personal information (name, address, etc) and verification from your issuing card/bank declined it, or that your card is declining the transaction due to security settings. While rare, the latter most instance can occur, almost always with credit cards not based in the United States, where there is a security setting on the card that indicates processing requests from "all internet transactions". In all of these situations, this is a failure to approve/authorize/process the transaction on the part of your issuing bank (vast majority causality) or the through the very capable, industry standard PayPal payment processing system.


OwnHammer.com DOES NOT perform, authorize, or have any control over payment processing; this is a function entirely relied upon through an exchange between your card's bank and PayPal. There is nothing that can be done from the OwnHammer side in the event of a transaction refusal/error, and it is recommended to try another card or attempt the transaction again at a later time, double checking your information you enter in the process.

Do you have return customer discounts?

Yes, information on the Frequency Discount can be found in the General Information sidebox on the bottom left of the main/store area of the website.

Do you offer "try before you buy" or refunds on digital products?

No, as is a common practice among digital product vendors for obvious reasons. As noted on all product pages and in the Terms of Use Agreement on the website, all sales are final. There is a limited sample rate Free Demo that can can be tried free of charge, however.

Can I buy a cab that is included in a multi-cab bundle or speaker from a multi-speaker bundle separately?

No. Libraries are only available as they are presented on the website.

Does OwnHammer offer student/military discounts, or have holiday/seasonal (e.g. Black Friday, etc) sales?

No. In lieu of the above examples, the OwnHammer website offers a year round, universally available and non-exclusionary rewards program called the Frequency Discount. Further information can be found at:


The ".hir" IR files I purchased from the Line 6 website will not load; aren't they supposed to be ".wav"?

No. As noted on the Player Packs Information Page, items sold in the Line 6 web store will be in their proprietary format for use with their proprietary hardware/software. If you are having any issues loading .hir impulse response files the same way you load .wav impulse response files (dragging and dropping into the "IMPULSES" section of the editor, ala the method shown in the embedded video on the Helix Tutorials Page), one of two things could be happening:

1) You have not yet registered your Helix hardware/software with Line 6. Impulse response and preset files sold in the Line 6 store are copy protected with an encrypted licensing system. They can only be used by the person who purchased them with the Line 6 software/hardware registered to the same user account. If you have not registered the Helix hardware/software you are attempting to load the .hir files into, it could be that the user ID's are not matching (since it is absent from the hardware/software and therefor not a match). Register your Helix hardware/software to the account you purchased the IR's from on the Line 6 website, and the files will then be able to load.

2) You may be encountering some kind of potential glitch in operation or potential software/firmware bug. Make sure you are on the most recent version of the Helix firmware and/or editor software, restart your Helix and/or computer, and try again. If the error persists, take a screen shot of the error message you are being shown (making sure it includes the numeric error code), and open a ticket with Line 6 Support including the screen shot or at least the numeric error code. To open a support ticket, log into your Line 6 account, then click on your account -> Support Tickets, then click "OPEN NEW TICKET".

OwnHammer cannot and will not be able to support software systems it did not write, so this is the extent of what can be done from our side should you have such an issue.

I am looking for the Justin York Collection and cannot find it, is it available?

The JYC has been supplanted by the Core Tone Bundle, available at:


Continued interest in this defunct offering appears to stem from this online video recommendation of the following files:

OH-JY-MES-412 BL 57B2+121
OH-JY-VX30-212 L 421C2+121

Those will translate, respectively, in the CTB to be:

OH 412 RECTO V70B OH1-05
OH 212 VC30 BLU-93 OH2F-07

Are legacy libraries that are no longer in the store available?

No. Legacy libraries that have been discontinued have been so because they either do not meet the current sonic requirements and therefor do not serve current brand reputation, do not and/or can not meet the current file format standards and presentations, and/or were part of third party agreements/collaborations that are no longer active. If it cannot be found in the current menu or through the search function, it is not available.

Can I include OwnHammer IR's in my own shared/commercial presets?

No. Under no circumstances are OwnHammer IR's to be redistributed or included in presets/sounds, this includes Kemper profiles as a part of the captured signal chain as this constitutes derivative works. All circumstances violate the Terms of Use of the OwnHammer website, and the End User License Agreement for all OwnHammer products.

There are no affiliate programs or licensing tiers available for preset vendors. If you have built sounds around and require/recommend the use of OwnHammer products/services, simply note the product and/or URL link in your documentation for users to also purchase from the OwnHammer website.

What is the difference between the 412 MES V30 (HHC) and the 412 RECTO V60/V70?

The 412 MES V30 in the HHC is a 70 watt Mesa V30 from a different era of manufacturing than the one offered in the 412 RECTO section, has more top end than the others, and will feel the most bright of the three.

OwnHammer used to have Nebula speaker cabinet libraries available, but there are currently none as sale items on the website - where are they and can I buy them?

New advancements in the sampling process since those libraries' releases and several excessive and potentially impossible maintenance requirements have rendered those projects not suitable for new sales. New Nebula sampling projects will potentially begin development in 2020 when the current high demand development queue and 3rd party integration projects have been satisfied, pending interest in the platform at that time.

What is the difference between the "A" and "B" speaker in libraries that have these notations at the end of the speaker name?

The short and only necessary answer is: they sound different! Sometimes it is a different speaker, a different place sampled on the same speaker, a different day it was captured on (as equipment - especially vintage equipment like 60 year old speakers - can sound different from one day to the next, even in climate and humidity controlled environments), but the bottom line is it's not the same sound, and it was enough that in the development process, a decision couldn't be made on just ONE of them. If this information is not made specifically clear on a given product's product page or PDF User Manual, it is not available for further disclosure.

The mics comprising certain mix recipes is not contained in the documentation; are these available for disclosure?

No. This could be from a perspective of competitive advantage, or the information simply was not kept record of. In the latter case, enough time has passed that any legacy library not befitting of the feature set found in the majority of the current catalog would have been considered to be created in an experimental phase, and in many cases was an impromptu configuration that may not have been repeated, and notes on them cleared. At the end of the day, knowing what is in a mic mix doesn't change how it sounds, so your ears will serve you better than your eyes in determining if a mix is right for your persuasions and intended purposes.

I no longer need my libraries, can I give or sell them to somebody else that is legal and supported by OwnHammer?

No. Licenses are only granted to the original buyer and UNDER ABSOLUTELY NO CIRCUMSTANCES legally transferrable.

In older versions of OwnHammer IR library PDF Manuals, there was a section about an EQ trick that mentions tube amps. What does this mean, and why is it not in the PDF Manuals for newer libraries?

When shooting IR's, the stimulus signal can be amplified through the cabinet with a neutral, reference style (no color/frequency deviation) amplifier, or with a guitar amp (via the "power section") - the latter potentially doing the job much differently. If using the "power section" of a guitar amp, the design of the particular model used can drastically change the coloring and frequency response of the original measurement stimulus material. This often results in a significant change in the frequency response due to the negative feedback controls (Presence / Depth) of the circuit, the tube type, among several other factors. Even having the Presence and Depth at zero, there are still usually a few tell-tale frequency deviations, one of the most noticeable being a scoop in the midrange.

Back in the early days of amp modeling, flat out - power amp simulation was just okay, to lackluster, to non-existent. At that time, it could be beneficial to have some of that coloring and frequency response alteration "baked in" to the IR, especially that mid scoop, and the boosts in the low and high resonance points of the spectrum. It didn't make the IR any better or worse or more fit for a particular purpose, it simply helped the amp modeling be more convincing in spite of its short comings, and served as an outsourced crutch to that symbiotic platform. This is of course in a generic way, as different amp designs result in varied frequency response deviations.

Since OwnHammer has been around since the beginning of when professional IR's were being offered commercially, the IR libraries often offered IR's shot both ways - with a reference amp, and with the "power section" of a guitar tube amp. As amp modeling became more competent and realistic, this turn key solution became less and less useful, and eventually was just bloat in the packages. At a certain point, OwnHammer only continued forward using reference amplifiers to drive the source. There were some who either stuck with those old platforms, or got used to dialing in their amps with that scooped sound baked into the IR that a guitar tube amp retains, so the OwnHammer PDF Manuals provided information about an "EQ Tip" that would help those still seeking that old sound of having IR's driven by the power section of a guitar amplifier. This tip has since been significantly misinterpretted and misused, and as it is no longer a relevant practice with the amp modeling world in its current, realistic state (for the majority of platforms), it has been removed.

In Summary:
  • The EQ tip was to help old/bad modeling platforms, which had poor power amp modeling.
  • The EQ tip is not a way for the IR's themselves to "sound more realistic" - in fact the opposite is true.
  • The EQ tip is not relevant with newer, competent modeling platforms like Line 6 Helix, Fractal, Kemper, TH-U, etc.
  • The EQ tip is now largely unnecessary and has been removed from the PDF Manual as today it does more harm than good among the newer user base that does not understand it (as many likely were not around for when it was relevant).

Can order confirmation emails be provided in a different layout/format?

No. Order confirmation emails are sent through automated processes and adhere to only one layout template. The OwnHammer store is based in the United States, and does not participate in VAT invoice formats, German tax form itemization/deduction format, paper mail receipts, or any other proprietary layouts - only the order confirmation emails that are automatically sent out by the server for every order. The emails are sent in plain text, so this information can be copied, pasted, reorganized, printed, etc. on your end in a text editor for your records if they are needed to be presented in a specific way for your tax season itemization purposes that they are not already conforming to. If you are not receiving order confirmation emails, check your spam/filtered/other/promotions sections of your host's email folder structure as emails ARE sent with EVERY order by the store framework.

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Any and all third party companies and products listed or otherwise mentioned on this site may be trademarks of their respective owners and are in no way affiliated or associated with OwnHammer, LLC. Product names are referenced solely for the purpose of identifying hardware used in the equipment chain for impulse response capture or are examples of companion products. Use of these names does not imply any cooperation or endorsement.