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NAD! SVT7 Pro (also comparing it to my Streamliner 900)

#621
johnk_10 said:
i don't have a problem with the 7pro's or the GB SL900's gain or master volume's taper. IME, neither one of them are too touchy and come on all at once (like on some other amps).
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FWIW, my point is that people shouldn't worry "OMG... it's not loud enough at 9:00... I should feel like I've been run over by a heard of elephants by now!!!" because they are used to other amps which put 90% of the usable volume in the first 1/4 turn of the knob. I'm saying turn it up until it is loud enough and don't worry about where the knobs are relative to another amp.

JimmyM said:
Isn't the taper of the master volume dependent on the gain setting?
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No, the potentiometer's taper is independent of other settings.

JimmyM said:
Also, not sure I get why that would be important. As long as you can get what the amp says it delivers, does it really matter if a volume pot stops working at 2:00 or 5:00?
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Not important at all... unless of course one prefers being able to use the full rotation of the volume control for fine adjustment instead of only 1/3 or 1/2 of it.
 
#622
12bass said:
*snip*No, the potentiometer's taper is independent of other settings.*snip*
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The output level at a specific master volume control setting is dependent on the gain setting. Therefore, Jimmy is mostly correct with one minor change: *Isn't the [del]taper [/del] output level of the master volume dependent on the gain setting? The point being, listen with your ears and not your eyes. :smug:
 
#623
the thing with the Streamliner is that when you dial the gain in to the same tonal spot you do on the 7pro, the master volume is much louder at a lower master setting on the GB. Both amps get ridiculously loud, but the 7's master knob needs to be up a bit higher to attain the same volume with all things relative. I'm assuming, as was suggested earlier, that it's as simple as turn it up more. My guess is is that the GB puts out a hotter signal post gain (regardless of actual OD tone) and hence the master needs less turning to get loud quick. I've read that guys are using the 7 pro with gain at 3 o'clock and master at 3 o'clock and my bowels start acting funny just thinking about it. I'm running at 2 and maybe 10 and it's LOUD through a 4-10. I'll see tonight- running a three hour gig through it full of all kinds of genres with a loud drummer and no FOH support....
 
#625
Here's a graphic representation of three common potentiometer tapers:

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Let's assume that we have two amps with the same maximum output power. Amp A uses a volume control with reverse log taper and Amp B uses normal log (AKA audio) taper. At only 20% rotation of the volume knob, Amp A will sound as loud as Amp B at a full 80% of its rotation. While it may not seem nearly as loud at 9:00, Amp B will give a much larger range of volume adjustment, and both will produce the same volume at maximum.

Some amps use reverse log to give the impression of a lot of power. My Eden WT-500 originally had a reverse log master volume. A while ago I changed it to a regular log taper, but would probably prefer a linear taper, as the audio taper is a tad too gradual up until 3/4 or a turn or so, IMO.
 
#626
12bass said:
Some amps use reverse log to give the impression of a lot of power.
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Excellent point and the main reason I get worked up over people using knob position as an indication of potential output power. IMO the manufacturers are being dishonest as well as failing to provide the most usable control to the customer. My limited experience with Ampeg PF series amps tells that their controls are usable from stop to stop. Apparently, the 7 Pro is the same.
 
#627
John D said:
...IMO the manufacturers are being dishonest as well as failing to provide the most usable control to the customer. My limited experience with Ampeg PF series amps tells that their controls are usable from stop to stop. Apparently, the 7 Pro is the same.
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It's not really so much dishonesty by the manufacturers, as it is a lack on understanding on the part of the users. We originally had an audio taper volume pot on our amp, as I like the finer control at lower volumes, but i was constantly being hit with "If it really has this much power, why does my other amp with only 300watts sound louder at half the volume?" Most of the time, my attempts to explain the difference between linear and audio taper pots is met with a blank stare. It's just easier to put a linear taper pot in there and call it good. For some reason, it seems to make players very nervous turning a master volume up to 2:00 or 3:00 and no amount of education on my part will make up for the wow factor of turning the volume up to 10:00 and having the amp be wicked loud.
 
#628
The Streamliner has volume all the way up the master, unlike the LM2/3 which seemed to get to full power at just over 12 o'clock.

It would be interesting to see the wattage output tested on the Streamliner. We all know what the BG review of the Pro 7 said. Whether that's indicative of all the units, who knows.

No doubt both amps are stupidly powerful.
 
#629
R Baer said:
It's not really so much dishonesty by the manufacturers, as it is a lack on understanding on the part of the users. We originally had an audio taper volume pot on our amp, as I like the finer control at lower volumes, but i was constantly being hit with "If it really has this much power, why does my other amp with only 300watts sound louder at half the volume?" Most of the time, my attempts to explain the difference between linear and audio taper pots is met with a blank stare. It's just easier to put a linear taper pot in there and call it good. For some reason, it seems to make players very nervous turning a master volume up to 2:00 or 3:00 and no amount of education on my part will make up for the wow factor of turning the volume up to 10:00 and having the amp be wicked loud.
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Fair point. Trust me, Baer Amplification was far from my mind when I made my statement. I was referring to some of the fly-by-night companies that push their low quality amps toward inexperienced players who don't know better. Unfortunately, I've never experienced a Baer amp, but based on TB comments, including yours, I have a lot of respect for you and your company. :cool:
 
#633
How does Genz rate their RMS power compared to Ampeg? I I was a little bummed when i 1st read the BG actual bench test,max output of the SVT7PROs 4ohm total being 763wts? Doesnt mean it was lacking headroom,but its not 1000wts.... Id really like to know how much the master volumes positioning really matters when really testing between these 2 amps that dont really match up in the headroom dept/RMS power max? Im just a little confused,lol. I really like the tone of both,im just torn on which is better for my intended purpose...STL900 so far is winning to my ears,close comparison though guys!
 
#634
just played a 3 hour gig with the 7 pro. I'll try to expand tomorrow when I'm sober and not exhausted but damn, I'm a happy boy. I never touched it all night. Not one adjustment- P bass with TI flats- played every genre you can think of and it sounded just ridiculous...
sweet dreams
 
#635
Bass Gear tested it with voltage measuring 124v, which is a good bit higher than the standard 120v. When tested at more normal voltages, it hits its rated wattage every time. But it has a limiter that comes on a little early to protect the amp and keep it running when you're pushing it to excruciating and puke-inducing levels and you're running at significantly higher voltage than 120v. There was a week long thread about it on here, and two additional bench tests were done on one and it hit its rated power on each. And both the editor of Bass Gear and the guy who did the additional bench tests bought one, so they must have been sufficiently impressed with it.
 
#637
But it has a limiter that comes on a little early to protect the amp and keep it running when you're pushing it to excruciating and puke-inducing levels
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This is a reassuring statement, I was thinking of an SVT Pro7 for my next head but was doubtful after reading negative posts about it cutting out (similar to the PF500, which is my current amp and to be fair, it has been 100% reliable and flawless), I just want a bit more headroom sometimes, I have never experienced my audience puking so I should be ok with the Pr07 :)

Thanks Jimmy, a virtual beer coming your way :);)
 
#639
GRAHAM SG1 said:
This is a reassuring statement, I was thinking of an SVT Pro7 for my next head but was doubtful after reading negative posts about it cutting out (similar to the PF500, which is my current amp and to be fair, it has been 100% reliable and flawless), I just want a bit more headroom sometimes, I have never experienced my audience puking so I should be ok with the Pr07 :)

Thanks Jimmy, a virtual beer coming your way :);)
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Now this post I enjoyed. I even went and got a real beer on your behalf! ;)
 

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