The Spark 2 from Positive Grid may resemble a compact, vintage-style amplifier, but it is, in fact, a sophisticated computer equipped with knobs and a speaker. This innovative device features Bluetooth, USB-C, and a companion smartphone app, making it a versatile tool for modern musicians. However, it's important to note that the Spark 2 requires firmware updates, which, if mishandled, can potentially brick the device—a lesson I learned the hard way. The Spark 2 operates on DSP chips, allowing users to download new guitar tones that function as software rather than relying on traditional analog circuits found in amplifiers or foot pedals.
The Spark 2 epitomizes the ongoing software-ization of music. Gone are the days of sprawling studios filled with pricey analog gear, such as SSL or API mixing boards, vintage amplifiers, and massive plate reverbs. Today's studios are predominantly digital, where musicians record “in the box” using software like Pro Tools or Logic Pro. They leverage digital models of classic amplifiers developed by companies such as NeuralDSP and IK Multimedia. These modeled sounds are processed through convolution software that utilizes digital impulse responses captured from various speakers and cabinets, allowing for incredible sound quality.
Once recorded, mixers often employ digital plugins to mimic studio equipment like tape delays and FET compressors. This transition to digital modeling has empowered home musicians, enabling them to access high-quality sound equipment that would have cost a fortune just two decades ago. However, with this convenience comes the complexity of computing devices, introducing potential technical issues and frustrations.
For instance, if you want to achieve the iconic Marshall tones offered by Universal Audio's Lion amp simulator, you must navigate a series of steps: plugging your guitar into your audio interface, connecting the interface to your computer via USB, launching a Digital Audio Workstation (DAW), and configuring various settings to avoid latency. Any hiccup in this process can hinder your jam session. Moreover, the reliance on plugins and constant updates can be cumbersome, often requiring you to manage multiple applications and connections.
Despite these challenges, the benefits of digital amp modeling are undeniable. Traditional analog gear can be prohibitively expensive. For example, the Lion amp plugin provides multiple high-quality Marshall head units at a fraction of the cost, allowing you to emulate sounds without the hassle of physical equipment. For under $100, you can access the tones of an overdriven Marshall amp without needing to mic it or worry about disturbing others.
Similarly, the Tone King Imperial Mk II, a $2,700 Fender-style amp, has a stunning digital model available for just $100, complete with various effects and presets. While I appreciate the convenience of digital modeling, I sometimes long for the tactile experience of physical knobs and high-quality hardware.
The Spark 2 effectively addresses these desires by providing a portable, user-friendly practice amp that integrates Positive Grid's digital amp and effects simulations. Priced at $300, it is a 50-watt amplifier and Bluetooth speaker that can store eight onboard guitar tones and download thousands more through its smartphone app.
Constructed with durability in mind, the Spark 2 comes with a carrying strap for easy transport. For those who prefer a wireless experience, an optional battery pack is available for $79, offering several hours of playtime. The Spark 2 is well-equipped with Bluetooth for audio streaming, a 3.5 mm aux input, and two quarter-inch line-out jacks. It also features a guitar input jack and a headphone output, allowing for versatile use.
The Spark 2’s app is not mandatory for operation, but it significantly enhances the user experience. By using the app, you can download and create new tones based on an extensive library of modeled gear. The app provides options for adjusting parameters such as reverb levels, reflection time, and sound damping, far exceeding what can be done with the physical knobs alone.
With a wide array of modeled gear available, including noise gates, compressors, drive pedals, amps, EQ units, delays, and reverbs, the Spark 2 offers a plethora of creative options for musicians. Positive Grid has significantly increased the computational power of the Spark series, equipping it with an M7 chip that enhances processing speed and sound quality.
Despite its impressive features, the Spark 2 is not designed for studio-level recording quality. While it can deliver solid distortion sounds and effects, the clean tones may not match the precision of more expensive modeling rigs or traditional tube amps. Positive Grid has positioned the Spark 2 as a tool for practice, jamming, and basic recording rather than a substitute for professional studio gear.
The Spark 2's portability and ease of use make it an excellent choice for musicians seeking a straightforward practice solution. I found it easy to transport the unit around my home, allowing me to practice without disturbing others. The optional battery pack added to its convenience, enabling me to play anywhere without being tethered to a power outlet.
While the Spark 2 is designed to provide a screen-free experience, the app is essential for accessing advanced features and new tones. The app excels in modifying preset gear, offering a user-friendly interface with intuitive controls and a vast library of pre-made effect chains. Additionally, the app includes various backing tracks and a groove looper, providing ample opportunities for practicing soloing.
Positive Grid has integrated AI tools into the app, including Smart Jam, which adapts to your playing style. While it can be hit or miss, I found more success with Spark AI, a tone-shaping engine that generates presets based on user requests. This feature consistently provided me with relevant tone options, making it easier to find the sounds I was after.
In conclusion, the Spark 2 from Positive Grid is a well-designed and robust practice amp that combines modern technology with user-friendly features. While it may not replace high-end studio gear, it offers musicians an affordable and portable solution for practice, jamming, and creative exploration. With its extensive modeling capabilities and engaging app, the Spark 2 is a worthy addition to any musician's toolkit.
