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Genzler Amplification Club

Hello everyone, I made a thread in the amps section but was told to ask here as well, so here's my question:

What are the center frequencies which are cut or boosted when using the Contour knob on each mode?

I'm fully aware of how the contour works, featuring 2 modes, one for scooping the sound and the second one bumping the mids and rolling of the highs and ultra lows, for a more vintage sound.

Please don't tell me to RTFM, in fact I did and there none such info there.

Thanks!

@sideFX --- thanks so much for your interest in our Magellan amps. As for your question, here is some of the copy from the Owners Manual:

Curve A (Blue) Provides a variable pre-shaped curve that boosts lows and highs while simultaneously cutting Mids. The slopes are fairly gentle which keep the tone shaping very musical. This curve covers a wide range of sounds from flat to classic to modern depending on the position of the SHAPE control.

Curve B (Amber) Provides a variable pre-shaped curve with attenuated high mids and highs, a low mid bump, and a slight roll-off of the lowest bass frequencies. Again, the slopes are fairly gentle which keep the tone shaping very musical. This curve is intended to provide sounds in the range of vintage amps and vintage cabinets that do not have tweeters.


Putting some numbers to this, the cut in CURVE A is around 550 - 600Hz range. It gets deeper with the more you use the control --- as it also raises the lower and Upper frequencies as you increase the control.
As these are gradual slopes it's a little more difficult to put a number on their frequencies.

For CURVE B --- the Bump in the low mids is in the 100 - 125 Hz range, to fatten up the tone, and the attenuation in the lows is like a HPF, and that is around the 50Hz range. This curve tapers the response above the low mid bump, becoming fairly flat then rolls off in the very top end, 2K and up.

It should be noted that both curves our out of the network if the CONTOUR control is rolled all the way off.
 
@sideFX --- thanks so much for your interest in our Magellan amps. As for your question, here is some of the copy from the Owners Manual:

Curve A (Blue) Provides a variable pre-shaped curve that boosts lows and highs while simultaneously cutting Mids. The slopes are fairly gentle which keep the tone shaping very musical. This curve covers a wide range of sounds from flat to classic to modern depending on the position of the SHAPE control.

Curve B (Amber) Provides a variable pre-shaped curve with attenuated high mids and highs, a low mid bump, and a slight roll-off of the lowest bass frequencies. Again, the slopes are fairly gentle which keep the tone shaping very musical. This curve is intended to provide sounds in the range of vintage amps and vintage cabinets that do not have tweeters.


Putting some numbers to this, the cut in CURVE A is around 550 - 600Hz range. It gets deeper with the more you use the control --- as it also raises the lower and Upper frequencies as you increase the control.
As these are gradual slopes it's a little more difficult to put a number on their frequencies.

For CURVE B --- the Bump in the low mids is in the 100 - 125 Hz range, to fatten up the tone, and the attenuation in the lows is like a HPF, and that is around the 50Hz range. This curve tapers the response above the low mid bump, becoming fairly flat then rolls off in the very top end, 2K and up.

It should be noted that both curves our out of the network if the CONTOUR control is rolled all the way off.
Thank you so much Mr. Genzler, that was exactly the info I was seeking!

Just another question if you don't mind.

What are the (approximate) frequency points in the mids parametric knob at let's say 9, 12 & 3 o' clock?
 
I am bumping the rough EQ positions of the mid sweep knob just in case it is helpful to anyone/they don't want to have to search for it.

The CONTOUR circuit is has NO impact to the frequency response when it is in the full OFF position ----- the control all the way to the left.
And regarding your questions about frequency locations around the mid control, here is an approximation. We with all pot controls there are some variances when rotating the control.
9:00-->200Hz; 10:00-->300Hz; 11:00-->500Hz; 12:00-->650Hz; 1:00-->800Hz; 2:00-->1KHz; 3:00-->1.5KHz.

As always I recommend using your ear for fine tuning frequencies to cut or boost.

See here ^^^^
 
See here ^^^^

Thanks @rowsi. Nice that you found this.
@sideFX --- this info is from a previous post. In general it's always great to let your ear guide you to the flavors of tone and EQ shaping.
I'm not sure if you currently have one of the Magellan amps yet or are considering it but most users have found the CONTOUR and EQ variability to be extremely musical and useful without going to drastic EQ changes to get a tone that works for your specific instrument.

Hope this repost from Rowsi is helpful.
 
Nu Classic 212 users:

I've been searching this thread and others for a gig report with the Nu Classic 212 as a stand alone cab. I found a couple, but looking for more. I've been using a Magellan 800 and a pair of Magellan 112s for a few years now / cover band with 2 guitars / bass / drums / small to medium rooms. I'm guessing the NC 212 will be quite sufficient as a single cab situation.

Thanks in advance for any info :-)
 
Thanks once again! Very useful info posted here! Really appreciate it!

I don't own one yet, but I'm seriously considering one! What I do own though, is a Genz Benz Focus 115 cab I bought 9-10 years ago which is one of the best, clearest and most balanced single fifteens I've ever played through, so I'm sort of familiar with the quality and capability of your gear! I also almost bought a Streamliner 600, way back.

On the other hand you see me ask all these questions cause I live in Greece (120km from the capital Athens where all the music stores are located) and here there's no music shop around (nor in Athens) that carries your gear (that I know of), so if I decide to get one, I'll have to order one online (probably via Thomann Germany) sight unseen, without already having played through one before the purchase. That's how I got the Focus cab, no local store stocked G-B gear back then. Unfortunately we don't all live in the States...

One last question: how do you recommend setting the preamp gain (on the MG800 it's labeled "volume" of the clean channel - the leftmost knob)? I've read that in order to get a rich and "fat" tone, in most amps one must crank it all the way to the right and then slowly roll it back to the point in which there's some sparse clipping on the highest peaks / transients of one's playing, and finally back it of just a hair from there. Is there any scientific truth to that or it's just nonsense and urban legend? If I set it lower will the bass sound weak and/or anemic?
 
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Nu Classic 212 users:

I've been searching this thread and others for a gig report with the Nu Classic 212 as a stand alone cab. I found a couple, but looking for more. I've been using a Magellan 800 and a pair of Magellan 112s for a few years now / cover band with 2 guitars / bass / drums / small to medium rooms. I'm guessing the NC 212 will be quite sufficient as a single cab situation.

Thanks in advance for any info :)

I have the NC-212 with the Magellan 800, and it works fantastic as a single cab rig. I have used it with and without running through the PA, and have had no problems with volume in either case, and that's with a loud guitarist and a drummer that insists on using his own PA to give his drums some girth and volume. And, the cab is light, at least compared to other 212 cabs that I've owned. Last, but certainly not least, the tone is amazing! I highly recommend this cab.
 
I have the NC-212 with the Magellan 800, and it works fantastic as a single cab rig. I have used it with and without running through the PA, and have had no problems with volume in either case, and that's with a loud guitarist and a drummer that insists on using his own PA to give his drums some girth and volume. And, the cab is light, at least compared to other 212 cabs that I've owned. Last, but certainly not least, the tone is amazing! I highly recommend this cab.

Thanks for that info! I have a similar situation with a sometimes too loud guitarist. My first attraction to this cab is that it's 10# lighter than the Magellan 212 and a bit smaller = ++! I'm giving it the gig test tomorrow / will report back here.
 
Thanks once again! Very useful info posted here! Really appreciate it!

I don't own one yet, but I'm seriously considering one! What I do own though, is a Genz Benz Focus 115 cab I bought 9-10 years ago which is one of the best, clearest and most balanced single fifteens I've ever played through, so I'm sort of familiar with the quality and capability of your gear! I also almost bought a Streamliner 600, way back.

On the other hand you see me ask all these questions cause I live in Greece (120km from the capital Athens where all the music stores are located) and here there's no music shop around (nor in Athens) that carries your gear (that I know of), so if I decide to get one, I'll have to order one online (probably via Thomann Germany) sight unseen, without already having played through one before the purchase. That's how I got the Focus cab, no local store stocked G-B gear back then. Unfortunately we don't all live in the States...

One last question: how do you recommend setting the preamp gain (on the MG800 it's labeled "volume" of the clean channel - the leftmost knob)? I've read that in order to get a rich and "fat" tone, in most amps one must crank it all the way to the right and then slowly roll it back to the point in which there's some sparse clipping on the highest peaks / transients of one's playing, and finally back it of just a hair from there. Is there any scientific truth to that or it's just nonsense and urban legend? If I set it lower will the bass sound weak and/or anemic?

turn it up till there’s light barely comes on then roll it back a bit. It won’t sound anemic if you don’t but you’ll be maximizing your gain stages if you do and you’ll send a better signal through the DI. On the drive side I crank the gain till it sounds as distorted as I want then I balance the volume to match my clean channel. After that I use my master for stage or practice volume.
 
Thanks for that info! I have a similar situation with a sometimes too loud guitarist. My first attraction to this cab is that it's 10# lighter than the Magellan 212 and a bit smaller = ++! I'm giving it the gig test tomorrow / will report back here.

I'm no expert on ohm loads etc. but I think with the MG800 (set to 2.67) you could run one of the MG112s along with the NC212 if needed, so could you bring one of those along just in case more power is needed once you get going?
 
On a break but getting ready to get back after it. A little chilly here in S Austin but we’re getting through it. The re/Q has been on point and is exactly what I was looking for!

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Hi all, the 15-3 arrived this evening.
First thought as I was moving to my music spot was hmm - Nice and light, compact. I put it on top of my other cab so it was fairly high off the ground. I grabbed my Dingwall 5 string Z3X ( w/Darkglass tone capsule pre).
WOW, the clarity, so full range - it sounded so good clean but man, I am having to change settings on my drive/fuzz pedals. I struggled a bit to dial some things in. I believe it’s a mix of a few things - more clarity in the high end (was a bit piercing) AND the Darkglass pre which does some eq bumps, even when set flat. Again, sounded fantastic clean.
After a while, I grabbed my 4 string Dingwall Super J and again, it sounded fantastic clean. I was also able to dial in the dirt a lot easier and then I played with a few other effects and had a really great time.
I am going to work more on dialing in things with my 5 string as I have really enjoyed the sound Of the 15-3 with my 4 string.
 
As I stated yesterday while at the gig, the re/Q was a great addition in dialing a precise tone. I started off with the MG’s EQ flat and the re/Q as well. I ended up leaving the amp flat and dialing contour A to about 10 o clock. I ran the filters on with the hpf set at 30hz and the lpf set around 6k. I gave the low knob just a little boost on the pedal and cut the high knob just a little and that was it. I wasn’t sure how the low knob would do with messing with it at home but it was great at the gig. It brought the right amount of booty but kept things tight enough. I like to have a little top end on tap so I kept my tone knob rolled back some. If I needed a little extra snap I’d roll it up. A great debut for the re/Q!
 
I played a gig tonight and took my Genzler Combo and BA12-3 to stack. At setup I realized I forgot to get the additional speaker cable for the 12-3. Decided to remove the amp from the combo and just run the 350 amp with the BA12-3 cab. I was not disappointed! I played a Stambaugh Master Modern 5’er with Fodera strings and it was just awesome.
What a great combination!