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Review: Auralex GRAMMA and Great GRAMMA Isolation Platforms

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Review: Auralex GRAMMA and Great GRAMMA Isolation Platforms

A review of the Auralex GRAMMA™ and Great GRAMMA™ Isolation Platforms…

I’ve been wanting to write up a review for the Auralex Acoustics GRAMMA Isolation platform for a while now; it’s kind of a “spread the good word” thing for me.  The GRAMMA has been an essential piece of gear for me for years now, and when anyone asks about it, they get more than an earful about how beneficial I think it is for live sound applications.  When I recently and accidentally ran over my trusty version 1 GRAMMA with my car and broke it, I got a replacement GRAMMA v2 from Auralex and thought, OK the time has come!  

For almost 40 years, Auralex has been making professional-grade acoustical treatment products for commercial audio applications around the world.  Engineers have come to rely on Auralex’s products, they are basically the gold standard for acoustical dampening/diffusing/absorbing materials and most studios you will find yourself in are bound to use some sort of Auralex product to aid in their audio calibration/tuning. 

Isolation Platforms

The Patented GRAMMA and Great GRAMMA is Auralex’s solution for musicians in live and studio settings, for the purpose of improving the clarity and definition of amps and loudspeakers. 

Auralex claims that using a GRAMMA results in “a tighter, more focused low-end” which lets you “Hear the true sound of your amp, loudspeaker or subwoofer”, and “Instantly improve your sound on-stage or in the studio”.   The GRAMMA essentially “floats” your rig and isolates vibration from transferring to the floor or stage, which claims to clean up the sound and remove ‘unwanted resonance artifacts’ from the sound of your rig. 

Review: Auralex GRAMMA and Great GRAMMA Isolation Platforms

Auralex released the GRAMMA v2 a few years back, and since I had been happily using the V1 GRAMMA, I thought it would help to point out the differences. 

The older GRAMMA had two pieces of 2-3” thick foam mounted to a piece of composite plywood or MDF-like substrate, covered in Ozite carpeting.  The two long rectangular foam blocks flanked the long edges with a smaller piece of V-channel acoustic foam in between, and a plastic handle on the underside.   The newer GRAMMA’s are much thinner, with about 1” of solid foam on the bottom and a flexible handle on the edge.  Auralex claims that the V2 offers “even more mid and low-frequency definition”.  While not earth-shatteringly smaller, I will say that the lower profile has made it easier to wedge in between gear in the back of my cramped hatchback.

From my own extensive yet anecdotal experience, the GRAMMA really shows its true colors when used on a hollow or wooden stage. 

In venues I frequent with raised stages, using the GRAMMA consistently tightens up and focuses the low end and reduces boom and the muddy/blurry tonal effect that hollow stages can sometimes produce.  The louder and more bass-heavy my sound, the more dramatically noticeable the improvement by the GRAMMA.  Every room and stage is bound to interact with your rig in different and often challenging ways, but my experience is that in addition to improving clarity and definition, it improves consistency from one room/stage to the next. 

Solid, concrete floors seem to have a less dramatic benefit with the GRAMMA, but I think that I still hear a difference in clarity and muddiness in almost any setting.  Our friends at Bass Gear Magazine did a more technical and scientific review of the effect of the GRAMMA, which you can read here.  Suffice to say, I’m enough of a believer that I just don’t leave home without it.  

Another excellent use for the GRAMMA (or perhaps the Baby GRAMMA™, at 15”x15”) is to put one between your cab and your tube head (or tube preamp).  

Some users report that isolating the head from the cabinet can reduce the amount of vibrations the tubes experience, which results in better clarity and definition from the amplifier.  I’m not a tube head guy and can’t really comment on whether this was noticeable with my hybrid amp that has a tube in the preamp. I think it’s safe to say that there’s a range of how much of the “tube” you’re hearing in various hybrid bass amps (tube pre, SS/class D power), based on differing design and topology. 

At the end of the day, we bassists spend hundreds, (cough cough) thousands of dollars on our gear, obsessing about improving our tone and how to make our rigs sound their very best. 

To my ears, and for my money, the GRAMMA Isolation Platforms can make a huge improvement on your sound, using the gear you already have, for under a hundred bucks.   The handful of people I’ve turned on to the GRAMMA have reported similar results and expressed wishing they’d known about it sooner, so I feel better about my anecdotal and unscientific analysis here.  But suffice to say,  my personal opinion is that the Auralex GRAMMA is the real deal.   The GRAMMA V2 is 23”x15” with a weight limit of 300 lbs., and they also offer the Great GRAMMA V2 for larger rigs, measuring 30”x19”.  At $87, and $99 respectively, this is an excellent way to improve your rigs tightness, punch and consistency. 

Learn more about the Auralex GRAMMA™ and Great GRAMMA™ Isolation Platforms at auralex.com/product/gramma/

David C Gross has been the bassist for a lot of folks. He has written 14 bass books and 3 instructional videos, hosts “The Notes From An Artist Radio Show” on www.cygnusradio.com Monday nights 8 PM EDT, and the “Notes From An Artist” podcast available on iTunes, Spotify and all podcast platforms.

NFAA brings you behind the scenes with individuals who forged a timeless musical canon – spanning rock, jazz, funk, blues, folk, country, and permutations thereof. Listen to stories and anecdotes hitherto untold and relive more than a few chronicles that have become lore with a fresh vision. It’s the soundtrack of our lives. Celebrate the past, live in the present, and anticipate the future – take Notes From An Artist

You can contact David @ www.thebassguitarchannel.com/contact for more information regarding his online lessons and world-renown correspondence course.

Gear Reviews

Gear Review: Origin Effects BassRig Fifteen… The Art of Getting Bass Tone Right

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Gear Review: Origin Effects BassRig Fifteen... The Art of Getting Bass Tone Right

Disclaimer: This pedal was kindly provided by Origin Effects for the purpose of this review. However, this does not influence our opinions or the content of our reviews. We strive to provide honest, unbiased, and accurate assessments to ensure that our readers receive truthful and helpful information.

There’s a certain kind of bass tone that doesn’t shout for attention, yet somehow defines the entire track. You hear it on records where everything just sits, where the low end feels effortless, supportive, and impossibly musical. It’s rarely about aggression. More often, it’s about control, warmth, and a sense that the instrument is breathing alongside the band.

That’s the space the BassRig Fifteen occupies.

Origin Effects has built a reputation around precision gear that doesn’t just approximate vintage equipment, but attempts to understand it at a deeper level. With the BassRig Fifteen, they’ve turned their attention to one of the most recorded bass amp sounds in history and distilled it into a compact, all-analogue format.

But this isn’t a nostalgia piece. It’s a tool designed for modern players who need that sound without the complications that usually come with it.

From the first few notes, what stands out isn’t a specific frequency or EQ curve; it’s the way the pedal responds. There’s a softness to the transient, a subtle compression that feels organic rather than imposed. Notes bloom rather than snap, and even simple lines take on a sense of weight and intention.

It doesn’t behave like a typical pedal. In fact, thinking of it as an “effect” feels slightly misleading. The BassRig Fifteen is closer to a front-end, something that reshapes the entire way your instrument interacts with the rest of your signal chain.

Push it gently, and it rewards you with rounded, articulate lows and a smooth top end that never gets brittle. Dig in harder, and the texture thickens, introducing harmonic complexity without tipping into anything that feels overly saturated. It’s a very specific kind of drive, more studio saturation than stage distortion.

One of the most impressive aspects is how easy it is to maintain clarity. Bass players are used to compromise when adding gain, losing low-end definition, or watching their sound disappear in a mix. Here, that trade-off feels largely absent. The core of your tone remains intact, even as the character evolves around it.

This makes the pedal particularly compelling in recording scenarios. Plugging directly into an interface via the built-in DI yields a sound that already feels “finished.” There’s a natural sense of space and balance, as though a cabinet has already been carefully mic’d and placed. It doesn’t require much in the way of corrective EQ or additional processing to sit correctly.

Live, that same consistency becomes a different kind of advantage. Engineers get a predictable, mix-ready signal. Players get the reassurance that their tone isn’t being left to chance night after night.

What’s interesting is how restrained the whole experience feels. In an era where many pedals compete on extremes, more gain, more options, more everything, the BassRig Fifteen takes a narrower path. It focuses on doing one thing exceptionally well, and trusts that players will understand the value in that.

That doesn’t mean it’s limited. There’s enough flexibility to adapt to different instruments, playing styles, and rigs. But the boundaries are intentional. This isn’t about radically transforming your sound; it’s about refining it.

And that distinction matters.

For players chasing vintage-inspired tones, the appeal is obvious. But even outside of that world, there’s something to be said for a piece of gear that prioritises feel over spectacle. The BassRig Fifteen doesn’t demand attention; it earns it over time, through consistency and musicality.

It’s not the kind of pedal that reveals everything in the first five minutes. Instead, it gradually integrates itself into your playing, shaping your touch and subtly influencing how you approach the instrument.

In the end, that might be its greatest strength.

Because while there are plenty of pedals that can impress, far fewer can disappear into your sound in a way that makes you forget they’re even there.

Available online at Amazon.com

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Gear Reviews

Review: Donner Triple Threat… Versatility and Creativity for Bass Players

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Review: Donner Triple Threat... Versatility and Creativity for bass players

Disclaimer: This pedal was kindly provided by Donner Music for the purpose of this review. However, this does not influence our opinions or the content of our reviews. We strive to provide honest, unbiased, and accurate assessments to ensure that our readers receive truthful and helpful information.

Triple Threat… A compact burst of analog attitude with unexpected appeal for bass players.

Multi-effects pedals are not usually the first stop for bassists. Most of us build our rigs piece by piece, choosing pedals that preserve low end and offer precise control. The Donner Triple Threat Pedal, created in collaboration with Jack White’s Third Man Hardware, takes a very different approach. It keeps things simple: distortion, phaser, and echo, all in one compact unit, with no menus or deep editing, just knobs and footswitches.

At first glance, it feels like a guitar pedal through and through. But spend a little time with it on bass, and it starts to reveal a different kind of usefulness, less about precision, more about character.

Built around simplicity

The Triple Threat is all about immediacy. Each effect has its own dedicated controls and footswitch, making it easy to dial in sounds quickly without overthinking the process. There’s something refreshing about plugging in and getting straight to experimenting, especially for bass players who are used to more complex signal chains.

The compact enclosure makes it easy to fit onto almost any pedalboard or even use as a standalone unit for rehearsals and smaller gigs. That said, the small size does mean the knobs are quite tight and not the easiest to adjust mid-performance. It’s a minor compromise, but one that becomes noticeable on a dark stage.

Analog character

Rather than aiming for clean, studio-like tones, the Triple Threat leans into a more raw and expressive sound. This becomes particularly apparent in the distortion section. It delivers a gritty, garage-inspired voice that can add real personality to a bass line, especially in indie or lo-fi contexts.

On bass, the key is restraint. Lower gain settings bring out a nice edge without sacrificing too much low end, while higher settings can start to thin things out. Without a blend control, there’s no easy way to bring back the fundamentals once it’s gone, so it rewards a lighter touch.

The phaser is more immediately cooperative. With slower rates and moderate depth, it adds movement without overwhelming the core tone. It’s the kind of effect that works best when you don’t notice it right away, but feel it sitting underneath the groove.

The echo section stands out as the most naturally suited for bass. It’s warm, slightly dark repeats sit comfortably behind the dry signal, adding space without clutter. Whether used subtly or pushed into more ambient territory, it complements the instrument rather than competing with it.

Real-world perspective

The Triple Threat has also found its way onto the pedalboard of Dominic John Davis, bass player for Jack White, which gives some insight into how it functions in a professional setting.

Looking at his broader setup, typically including tools like the Boss TU-3 Chromatic Tuner, MXR M108 Ten Band Graphic EQ, and boutique pedals such as the Mantic Effects Vitriol and Mantic Effects Isaiah Delay, it becomes clear that the Triple Threat isn’t a centerpiece. Instead, it serves as a flexible addition, a way to access a few extra textures without expanding the pedalboard further.

That context is important. For bass players, this isn’t about replacing carefully chosen pedals, but about adding something a little different to the mix.

Versatility in practice

In practical use, the strength of the Triple Threat lies in how quickly it lets you shift between sounds. Having three effects available at your feet without needing multiple pedals can be surprisingly useful, especially in stripped-down setups.

It’s easy to imagine it being used in rehearsals, smaller gigs, or situations where portability matters. It also lends itself well to experimentation, encouraging players to step outside their usual tonal comfort zones.

At the same time, its limitations remain part of the experience. The distortion’s guitar-oriented voicing and the absence of a blend control mean it won’t satisfy players looking for a fully optimized bass overdrive. Instead, it offers something a bit less predictable, and that’s part of its charm.

The Donner Triple Threat Pedal isn’t trying to be a precision tool, and it doesn’t need to be. What it offers is a straightforward, character-driven set of effects that invite exploration.

For bass players willing to approach it on those terms, it can be a surprisingly inspiring addition. It won’t replace a dedicated pedalboard, but it can add texture, movement, and a bit of unpredictability in a way that feels immediate and fun.

For more information, visit online at donnermusic.com

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Gear Reviews

Gear Review: Valeton GP-150 and GP-180 Reviews

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Gear Review: Valeton GP-150 and GP-180 Reviews

Disclaimer: This pedal was kindly provided by Valeton for the purpose of this review. However, this does not influence our opinions or the content of our reviews. We strive to provide honest, unbiased, and accurate assessments to ensure that our readers receive truthful and helpful information.

Two Paths to the Same Goal: Better Workflow, Real Control

Valeton’s GP series has followed a clear and consistent trajectory. The GP-5 introduced the core sound engine in an ultra-compact, app-driven format, proving that solid tones could exist in a minimal footprint, but at the cost of hands-on control. The GP-50 took a major step forward by adding onboard editing and a second footswitch, making the platform far more usable without relying on external devices.

With the GP-150 and GP-180, Valeton shifts the focus again, this time toward how players actually interact with their sound while playing.

These aren’t about reinventing the tone engine. They’re about making it more accessible, more flexible, and ultimately more musical in real-world use.

It’s also worth noting that while these pedals build on workflow ideas introduced in smaller GP units like the GP-5 and GP-50, the GP-150 and GP-180 are more closely related to the GP-100 platform, positioned as more complete, floorboard-style solutions rather than compact multi FX.

The Big Picture

Both the GP-150 and GP-180 share the same core foundation:

  • 200+ effects
  • NAM (Neural Amp Modeler) support
  • IR loading (up to 20 files)
  • 12-module fully flexible signal chain
  • Looper (180 seconds) and drum machine
  • USB audio interface and Bluetooth connectivity
  • Built-in rechargeable battery

So in terms of sound and raw capability, they’re very similar.

The real difference comes down to workflow and control.

GP-150: Compact Rig with Real Expression

GP-150 - Compact Rig with Real Expression

The GP-150 is where the platform starts to feel like a proper, self-contained rig.

The standout feature here is the built-in expression pedal. That alone changes how you use the unit. Instead of just switching presets or toggling effects, you can actively shape your sound in real time… volume swells, wah, parameter control… it’s all immediately available.

Combined with dual footswitches and onboard editing, the GP-150 strikes a strong balance
between portability and control. It carries forward the independence introduced in the GP-50,
but expands it into something more expressive and complete.

It’s especially appealing for players who want a minimal setup that still feels dynamic and
responsive.

GP-180: Hands-On Control, Pedalboard Feel

GP-180

The GP-180 takes a different approach. Instead of adding expression, it doubles down on direct
control.

The addition of a third footswitch already makes navigation more natural, but the real shift
comes from the dedicated effect block buttons.

Each block has its own button, which lights up when active and can be toggled instantly. That
means you can turn distortion, delay, modulation, or reverb on and off with a single press—no
menu diving, no reassignment needed.

In practice, this makes the GP-180 feel much closer to a traditional pedalboard. You’re not just
switching presets, you’re interacting directly with your signal chain, something that wasn’t really possible with the more minimal GP-5 or even the GP-50.

For live use, that immediacy makes a big difference.

Tone & Real-World Use

Both units share the same sound engine lineage, and overall quality remains strong.

There are more effects available compared to earlier models, and the addition of NAM support
opens the door to more realistic amp tones and modern workflows.

One of the most noticeable improvements, particularly for bass players, is the octave tracking. Lower octave sounds are significantly tighter and more usable than in earlier GP units like the GP-5, making them far more practical in a mix. Higher octaves still feel a bit clunky, but the improvement where it matters most is clear.

In terms of real-world use, both pedals are flexible enough to cover practice, recording via USB, direct-to-PA live setups, and compact fly rigs.

That said, they cater to slightly different players.

Which One Should You Choose?

Go for the GP-150 if:

  • You want a compact, all-in-one unit
  • Expression control is important to your playing
  • You prefer a streamlined setup with minimal footprint

Go for the GP-180 if:

  • You play live and need faster, more direct control
  • You prefer a pedalboard-style workflow
  • You want to toggle effects individually rather than relying on presets

The GP-150 and GP-180 aren’t competing pedals; they’re two different interpretations of the same idea.

The GP-150 focuses on expression and portability, giving you a compact rig that still feels
dynamic and interactive, something that builds directly on the usability improvements
introduced after the GP-5.

The GP-180 focuses on control and immediacy, turning the GP platform into something that
feels much closer to a traditional pedalboard.

Both share the same solid tonal foundation, but they approach usability in different ways.

And that’s really what this generation of the GP series is about, not just sounding good, but
feeling right under your hands and feet.

Visit online at valeton.net/

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Bass Videos

Gear Review: Italia Leather Straps

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Gear Review: Italia Leather Straps

Disclaimer: This bass strap was kindly provided by Italia Leather Straps for the purpose of this review. However, this does not influence our opinions or the content of our reviews. We strive to provide honest, unbiased, and accurate assessments to ensure that our readers receive truthful and helpful information.

I’ve spent years searching for the perfect wide bass strap, something that delivers both comfort and durability without compromising on style. That search ended nearly two decades ago when I discovered Italia Leather Straps.

Handcrafted in the USA from premium Italian leather, Italia Straps offers an impressive range of straps for both bass and guitar players. What immediately stood out to me was the exceptional craftsmanship; every detail, from stitching to material selection, reflects a commitment to quality. These aren’t just accessories… they’re long-term investments for serious musicians.

After more than 19 years of consistent use with my original strap, I can confidently speak to its longevity and comfort. Even under the demands of extended performances, the support provided by a 4” wide strap makes a noticeable difference.

In this review, I’m taking a closer look at the 4” Elite Series Leather Backed Bass Strap, now available in a sleek new Slate Black finish. It’s a refined addition to an already outstanding lineup, combining aesthetic appeal with the same trusted performance.

For more information, visit www.italiastraps.com.

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Gear Reviews

Review: Empress Effects Bass ParaEQ

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Review- Empress Effects Bass ParaEQ

Disclaimer: This pedal was kindly provided by Empress Effects for the purpose of this review. However, this does not influence our opinions or the content of our reviews. We strive to provide honest, unbiased, and accurate assessments to ensure that our readers receive truthful and helpful information.

ParaEQ… Precision tone shaping in a pedalboard-friendly format.

EQ pedals are often the unsung heroes of a bass rig. While overdrives and compressors tend to get most of the attention, a good EQ can completely transform how a bass sits in a mix. The Empress Effects Bass ParaEQ takes that idea much further, offering studio-style tone shaping in a rugged pedal designed specifically for bass players.

Based on the company’s well-known ParaEQ MKII Deluxe, the Bass ParaEQ adapts the concept for low-frequency instruments, delivering a powerful and flexible tool for dialing in everything from subtle tonal tweaks to major corrective EQ.

Built for bass

At its core, the Bass ParaEQ is a three-band parametric equalizer, meaning each band allows you to select the frequency you want to adjust, how much you want to boost or cut it, and how wide the adjustment should be. For bass players, this level of control can make a huge difference when trying to solve real-world tone problems.

In addition to the three parametric bands, the pedal includes a low-shelf and high-shelf EQ, along with high-pass and low-pass filters. Together, these controls allow you to shape everything from deep sub-bass to the upper harmonics of the instrument.

The controls are laid out clearly on the pedal, and while there are quite a few knobs, the layout remains intuitive once you spend a little time with it. Each parametric band offers frequency selection, boost or cut of up to ±15 dB, and a Q control that adjusts the bandwidth of the EQ band.

Another thoughtful feature is the selectable input impedance. The standard 1M? input works perfectly with most electric basses, while a 10M? high-impedance mode is available for instruments with piezo pickups, making the pedal particularly useful for upright bass players.

Massive headroom and clean performance

One of the technical highlights of the Bass ParaEQ is its 27-volt internal operation. Although the pedal runs on a standard 9-volt power supply, the internal circuitry steps that voltage up to 27 volts, providing enormous headroom. In practical terms, this means the pedal remains exceptionally clean even when applying large EQ boosts.

This extra headroom is especially noticeable when boosting low frequencies, where many EQ pedals can start to sound strained or compressed. The Bass ParaEQ handles these boosts effortlessly, maintaining clarity and punch across the entire frequency range.

The pedal also includes a foot-switchable boost capable of delivering up to 30 dB of clean level increase. This feature turns the ParaEQ into more than just a tone-shaping tool. It can also function as a volume boost for solos, a way to match output levels between instruments, or even a clean gain stage to push an amplifier slightly harder.

Real-world performance

In real-world playing situations, the Bass ParaEQ quickly proves its value. One of its biggest strengths is how easily it can adapt to different instruments and environments.

For example, during a recent gig, I used the pedal while switching between an active Jazz bass and a passive bass with flatwound strings. The active bass had a fairly aggressive top end that tended to jump out in the mix. With the ParaEQ, it was easy to smooth that out by slightly trimming the upper mids and rolling off some of the extreme highs.

The passive bass, on the other hand, benefited from a small boost in the presence range, helping it cut through the band without losing its warm character. Instead of constantly adjusting the amp between songs, the ParaEQ handled those changes instantly.

The pedal is equally useful for addressing common live sound issues. A quick adjustment can tighten up muddy low mids, add clarity to a dull stage tone, or remove problematic resonances that appear in certain venues.

Versatility for stage and studio

While the Bass ParaEQ is incredibly useful in live settings, it also shines in the studio. Engineers frequently use parametric EQ to shape bass tones during mixing, and having this level of control directly on the pedalboard allows players to dial in a more refined sound before the signal even reaches the recording chain.

The combination of parametric bands, shelving filters, and high-pass and low-pass filters makes the pedal capable of handling a wide range of tonal adjustments. Whether the goal is tightening the low end, adding articulation, or smoothing out harsh frequencies, the ParaEQ delivers precise results without altering the natural character of the instrument.

Final thoughts

The Empress Effects Bass ParaEQ is not your typical EQ pedal. With its parametric controls, extensive filtering options, and massive internal headroom, it offers a level of precision more commonly found in studio equipment than on a pedalboard.

For bassists who want deeper control over their tone—or simply a reliable way to handle the tonal challenges of different rooms, instruments, and mixes—the Bass ParaEQ is an incredibly powerful tool. It may require a little more understanding than a simple three-band EQ, but the payoff in flexibility and sound quality makes it one of the most capable EQ pedals available today.

Visit online at empresseffects.com/

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