NEW ROKKER 1000XXR amp vs Hertz 900
Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
CB,
excellent question, and I will give you an accurate answer ,,,,,
I only called out Volunteer audio because of his "overly" exaggerated you-tube video, explaining HOW his new fandangled amp testing machine, found that the new Hertz amplifier puts out 1000w RMS into 2-ohms (250w RMS x 4).
Hopefully everyone knows that is real BS, but the gentleman from Volunteer Audio sounds believable, even if most of us know better ,,,
What are the facts here? ,,,, if you go to the car audio section of the HERTZ website and look at that same amp for the automotive market, the actual CEA certified rating of that Hertz amp is 120w RMS x 4, into a 4-ohm load, AT .2% Total Harmonic Distortion. which comes out to about 180w RMS I think into a 2-ohm load. (which is a respectable CEA rating)
The Consumer Electronics Association Certified (CEA) rating is supposed to keep everyone honest, as by simply raising the distortion level OR raising the voltage above 14.4vcd, allows companies to post a HIGHER RMS output numbers than is allowed with the true CEA rating.
Now this car/motorcycle amplifier exaggeration race has been going on for decades, and JMC ROKKER has had to play the same game as everyone else ,,,,,
The new ROKKER 1000XXR amp is rated at 720W RMS into 4-ohms at 1% THD and 920w RMS into 2-ohms at 2% THD.
Even though we use the same chipsets that Hertz is using in their high-powered amp, we use a higher voltage coming off the internal power supply, to increase the RMS power ,,,,
NOW ,, having said all that, have we exaggerated just a bit over the actual CEA power rating? ,,, YES, we have to in order to sell amplifiers alongside the companies who exaggerate so much it is almost laughable.
Just be assured that the new ROKKER 1000XXR amplifier, "IS" a MUCH more powerful amplifier for your Harley, than the amp that Volunteer audio is selling, with them claiming 1000w RMS (250w RMS x 4) power.
It is also more powerful than the previous ROKKER 800w RMS amp and will produce higher volume levels on the highway ,,
It is completely adjustable in the field, by the installer, without the need for a computer, and all JMC ROKKER stage6 amp kits are now tuned for the STOCK Harley radio flash.
The new ROKKER 1000XXR can be adjusted into high-pass mode, or low pass mode (for subwoofers) on either the front or rear channels, and has the ability to drive, 4, 6 or 8, total speakers on your Harley with ease, WITHOUT over-taxing the charging system on the bike.
excellent question, and I will give you an accurate answer ,,,,,
I only called out Volunteer audio because of his "overly" exaggerated you-tube video, explaining HOW his new fandangled amp testing machine, found that the new Hertz amplifier puts out 1000w RMS into 2-ohms (250w RMS x 4).
Hopefully everyone knows that is real BS, but the gentleman from Volunteer Audio sounds believable, even if most of us know better ,,,
What are the facts here? ,,,, if you go to the car audio section of the HERTZ website and look at that same amp for the automotive market, the actual CEA certified rating of that Hertz amp is 120w RMS x 4, into a 4-ohm load, AT .2% Total Harmonic Distortion. which comes out to about 180w RMS I think into a 2-ohm load. (which is a respectable CEA rating)
The Consumer Electronics Association Certified (CEA) rating is supposed to keep everyone honest, as by simply raising the distortion level OR raising the voltage above 14.4vcd, allows companies to post a HIGHER RMS output numbers than is allowed with the true CEA rating.
Now this car/motorcycle amplifier exaggeration race has been going on for decades, and JMC ROKKER has had to play the same game as everyone else ,,,,,
The new ROKKER 1000XXR amp is rated at 720W RMS into 4-ohms at 1% THD and 920w RMS into 2-ohms at 2% THD.
Even though we use the same chipsets that Hertz is using in their high-powered amp, we use a higher voltage coming off the internal power supply, to increase the RMS power ,,,,
NOW ,, having said all that, have we exaggerated just a bit over the actual CEA power rating? ,,, YES, we have to in order to sell amplifiers alongside the companies who exaggerate so much it is almost laughable.
Just be assured that the new ROKKER 1000XXR amplifier, "IS" a MUCH more powerful amplifier for your Harley, than the amp that Volunteer audio is selling, with them claiming 1000w RMS (250w RMS x 4) power.
It is also more powerful than the previous ROKKER 800w RMS amp and will produce higher volume levels on the highway ,,
It is completely adjustable in the field, by the installer, without the need for a computer, and all JMC ROKKER stage6 amp kits are now tuned for the STOCK Harley radio flash.
The new ROKKER 1000XXR can be adjusted into high-pass mode, or low pass mode (for subwoofers) on either the front or rear channels, and has the ability to drive, 4, 6 or 8, total speakers on your Harley with ease, WITHOUT over-taxing the charging system on the bike.
You, like many other manufacturers, did not advertise ACTUAL readings, at a reasonable distortion level (1% THD, because who would want anything played at 2%THD), that we the consumer could do a valid comparison against before purchasing; forcing us to buy something which ISN"T at the advertised rated level, and then having to find out on our own and potentially replace to get the rated power we initially wanted.
All the more reason for us consumers to do our homework and find sources that have published actual amp DYNO results, like Carlos at NVS and many others.
Thankful that I do my homework and watched tons of DYNO results prior to picking an amp. I know I'm getting 235W/ch @ 4ohms (1%THD) based on what was advertised, backed by DYNO readings and validated post-installation with my own equipment.
Rant done.
Last edited by ShoreRider; May 16, 2024 at 09:32 AM.
Thread Starter
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Joined: Apr 2007
Posts: 2,578
Likes: 65
From: Tucson AZ
Shorerider,
We are not having a rant here, just talking about issues that affect YOU the consumer.
Please tell us which brand/model of amplifier you purchased that puts out 235w per channel x4 into 4-ohms at less than 1% THD? ,,,,,
Also, could you give me the external dimensions of that amp?
And what equipment you used to verify?
Thanks ,,,
We are not having a rant here, just talking about issues that affect YOU the consumer.
Please tell us which brand/model of amplifier you purchased that puts out 235w per channel x4 into 4-ohms at less than 1% THD? ,,,,,
Also, could you give me the external dimensions of that amp?
And what equipment you used to verify?
Thanks ,,,
__________________
JMJOHN,,,, www.Jmcorp.com ,,,, send email direct to John@Jmcorp.com for your HD-Forums VIP Discount Promo Code.
JMJOHN,,,, www.Jmcorp.com ,,,, send email direct to John@Jmcorp.com for your HD-Forums VIP Discount Promo Code.
Stellar HDF Member
Joined: Feb 2016
Posts: 2,170
Likes: 188
From: Manitowoc county
Shorerider,
We are not having a rant here, just talking about issues that affect YOU the consumer.
Please tell us which brand/model of amplifier you purchased that puts out 235w per channel x4 into 4-ohms at less than 1% THD? ,,,,,
Also, could you give me the external dimensions of that amp?
And what equipment you used to verify?
Thanks ,,,
We are not having a rant here, just talking about issues that affect YOU the consumer.
Please tell us which brand/model of amplifier you purchased that puts out 235w per channel x4 into 4-ohms at less than 1% THD? ,,,,,
Also, could you give me the external dimensions of that amp?
And what equipment you used to verify?
Thanks ,,,
I will stick with my JL Audio
Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
Shorerider,
We are not having a rant here, just talking about issues that affect YOU the consumer.
Please tell us which brand/model of amplifier you purchased that puts out 235w per channel x4 into 4-ohms at less than 1% THD? ,,,,,
Also, could you give me the external dimensions of that amp?
And what equipment you used to verify?
Thanks ,,,
We are not having a rant here, just talking about issues that affect YOU the consumer.
Please tell us which brand/model of amplifier you purchased that puts out 235w per channel x4 into 4-ohms at less than 1% THD? ,,,,,
Also, could you give me the external dimensions of that amp?
And what equipment you used to verify?
Thanks ,,,
Measurements: 7.4" X4.8" X 2"
Equipment: Teldyne LeCroy Model T3PM1006
I also use a Fluke digital multimeter for voltage measurements as a backup. My background is in Acoustic Analysis for the USN and in private industry for over 30 years. I personally own the the aforementioned test equipment and have access to much higher end equipment through my current employer.
Gains were set with a 5 minute long 1Khz/-5dBFS mp3. Final setting was at 29.8 (210VRMS approximately) volts to give it some headroom in the event I fat fingered the volume button while going over a bump. Battery output was 14.48 volts with the bike running
I plan on taking my 2nd one, unopened, into the office and seeing what it will do bridged @ 2ohms on our calibrated equipment as I may be inclined to use it to drive 2 DD Audio 10"-ers I am considering putting in the bags. It is supposed to run 2X800 bridged.
T3PM1006
Last edited by ShoreRider; May 16, 2024 at 03:29 PM. Reason: Update on voltage
Grand HDF Member
Joined: Aug 2014
Posts: 3,606
Likes: 1,595
From: Eastern Ohio
DS18 ION 1600.4D
Measurements: 7.4" X4.8" X 2"
Equipment: Teldyne LeCroy Model T3PM1006
I also use a Fluke digital multimeter for voltage measurements as a backup. My background is in Acoustic Analysis for the USN and in private industry for over 30 years. I personally own the the aforementioned test equipment and have access to much higher end equipment through my current employer.
Gains were set with a 5 minute long 1Khz/-5dBFS mp3. Final setting was at 29.8 (210VRMS approximately) volts to give it some headroom in the event I fat fingered the volume button while going over a bump.
I plan on taking my 2nd one, unopened, into the office and seeing what it will do bridged @ 2ohms on our calibrated equipment as I may be inclined to use it to drive 2 DD Audio 10"-ers I am considering putting in the bags. It is supposed to run 2X800 bridged.
T3PM1006
Measurements: 7.4" X4.8" X 2"
Equipment: Teldyne LeCroy Model T3PM1006
I also use a Fluke digital multimeter for voltage measurements as a backup. My background is in Acoustic Analysis for the USN and in private industry for over 30 years. I personally own the the aforementioned test equipment and have access to much higher end equipment through my current employer.
Gains were set with a 5 minute long 1Khz/-5dBFS mp3. Final setting was at 29.8 (210VRMS approximately) volts to give it some headroom in the event I fat fingered the volume button while going over a bump.
I plan on taking my 2nd one, unopened, into the office and seeing what it will do bridged @ 2ohms on our calibrated equipment as I may be inclined to use it to drive 2 DD Audio 10"-ers I am considering putting in the bags. It is supposed to run 2X800 bridged.
T3PM1006
Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
I will post what I find out. They state 800WRMS bridged at 4 ohms. My previous post was in error when I stated bridged at 2 ohms. They don't give a rating for 2ohms bridged.
It won't be until after mid June as I'm heading to Spearfish for a 3 weeks next week. Going to get some serious saddle time in that area with 3 other friends without the hassles associated with Sturgis.
It won't be until after mid June as I'm heading to Spearfish for a 3 weeks next week. Going to get some serious saddle time in that area with 3 other friends without the hassles associated with Sturgis.
Last edited by ShoreRider; May 16, 2024 at 03:28 PM.
Thread Starter
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Sponsor
Joined: Apr 2007
Posts: 2,578
Likes: 65
From: Tucson AZ
ShoreRider,
That particular amplifier (DS18 ION 1600.4D) is a prime example of what I am referring to here on this thread, and all of the fancy "amp/Dyno" screenshots on their website will not change reality ,,,,,,
I have a great deal of respect for you, your institution and the men who serve, I have a son who is currently an officer in the Navy and he is stationed in DC ,,,,
When I was much younger, I served in the USAF as an aircraft mechanic, jets one and two engines ,,,
Lets give a shout out to all of our veterans and active service members for a job well done ,,,
That particular amplifier (DS18 ION 1600.4D) is a prime example of what I am referring to here on this thread, and all of the fancy "amp/Dyno" screenshots on their website will not change reality ,,,,,,
I have a great deal of respect for you, your institution and the men who serve, I have a son who is currently an officer in the Navy and he is stationed in DC ,,,,
When I was much younger, I served in the USAF as an aircraft mechanic, jets one and two engines ,,,
Lets give a shout out to all of our veterans and active service members for a job well done ,,,
Club Member
Joined: Sep 2014
Posts: 7,618
Likes: 10,437
From: Des moines IA
https://www.mmatsproaudio.com/site/product/lsx1400x4/
Here's my choice for good power and clean output. Other than JL, I haven't found a cleaner sounding amp.
Full disclosure, I use their 2600.4 on my own bike.
It fits nicely on the JM tray.
Here's my choice for good power and clean output. Other than JL, I haven't found a cleaner sounding amp.
Full disclosure, I use their 2600.4 on my own bike.
It fits nicely on the JM tray.
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Club Member
Joined: Sep 2014
Posts: 7,618
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From: Des moines IA
I agree with you on me liking the sound, is important. The upside is making rated, clean power, makes it way easier to like.