GUITAR RESEARCH GR-30B Basscombo Bass Amplifier

( Brand: Guitar Research ), ( Manufacturer Part Number: GR-30B ), ( Part Type: Amplifier ), ( Venue Type: Practice ), ( Amplifier Type: Combo ), ( Impedance: 8 Ohms ), ( Power: 30 W ), ( Suitable For: Bass Guitar ), ( Country Of Origin: China )

Review GUITAR RESEARCH Basscombo

The GR-30B Bass Combo amplifier from Guitar Research is a versatile and powerful solution for bassists in search of a high-performing amplifier for practice, live performances, or recording sessions.

This compact and lightweight combo amp boasts an impressive 30-watt RMS power output, delivering ample volume and headroom to handle the deep, resonant tones of your bass guitar. The GR-30B is equipped with a custom-designed 10-inch speaker, providing rich bass response and clear, defined mid and high frequencies.

The amp's control panel offers a range of features to help shape and customize your sound. A three-band EQ (Bass, Mid, Treble) allows for precise tonal adjustments, while a Gain control adds grit and distortion when desired. Additionally, a Volume control ensures consistent output levels, while a Contour switch adds a mid-range boost for added punch and definition.

The GR-30B also features an XLR DI output, making it easy to connect directly to a mixing console or recording interface for live performances or studio sessions. A headphone jack is also included for quiet practice sessions.

Constructed with a durable, high-quality cabinet and covered in a stylish, modern black tolex finish, the GR-30B Bass Combo amp is both visually appealing and built to last. Its portable design and versatile features make it an excellent choice for bassists of all skill levels and playing styles. Whether you're practicing at home, rehearsing with a band, or performing live, the GR-30B Bass Combo amplifier from Guitar Research is an essential tool to help bring your bass lines to life.

The GR-30B Bass Combo amplifier by Roland is a popular choice among bassists due to its compact design, affordability, and built-in Roland technology. Here are some pros and cons that may help you make an informed decision about purchasing this amplifier:

1. Affordable: The GR-30B is an entry-level amplifier that is priced reasonably, making it an excellent option for beginners or those on a budget.

2. Compact: With its portable design, the GR-30B is easy to transport and can be used for practice sessions, small gigs, or recording in a home studio.

3. Built-in Roland Technology: The GR-30B comes with Roland's COS-MIDI technology, which allows for easier integration with other electronic devices, such as bass synthesizers and drum machines.

4. Versatile: The amplifier offers a range of sound options, including four selectable voices and a three-band EQ, allowing for customization to different playing styles and genres.

5. Headphone Jack: The GR-30B has a headphone jack, making it ideal for late-night practice sessions or for use in quiet environments.

1. Limited Power: The GR-30B has a power output of 15 watts, which may not be sufficient for larger venues or gigs where a more powerful amplifier is required.

2. Limited Connectivity: While the GR-30B offers some connectivity options such as an XLR input for a microphone and an AUX input for playing music, it does not have an XLR output for connecting to a mixing board or PA system.

3. Limited Controls: The GR-30B has a limited number of controls, which may not be suitable for more advanced players who require more customization options.

The GR-30B Bass Combo amplifier is an affordable and compact option for beginners or those in need of a practice amplifier. Its built-in Roland technology and versatile sound options make it a solid choice for those looking for a reliable and easy-to-use amplifier. However, it may not be suitable for more advanced players or for larger gigs due to its limited power output and connectivity options.

If you are a beginner or an intermediate player looking for a practice amplifier or a small gig amplifier, the GR-30B Bass Combo amplifier is a great option to consider. Its affordability, compact design, and versatile sound options make it an excellent choice for those just starting out in their bass playing journey. However, if you require more power or connectivity options, you may want to consider a more advanced and expensive amplifier.

Details:

Size 17x 15 W 8. Weighs only 24 lbs. Result: overall wider frequency range, and a much-improved bass response. Low mileage, kept exclusively in doors, in a home studio, smoke-free environment.

Replaced weak original speaker with new 40-watt 8 driver by Audio-Select Polypropylene Cone. So its very portable. 30- watts / 8 ohms. A worthy experiment.

Sturdy and loud for its size. Added foam rubber insulation to inside of cabinet. Modified by current owner.

part #: gr30b price

• $69.99

specifications guitoamps:

• brand: Guitar Research
• mpn: Gr-30b
• part type: Amplifier
• venue type: Practice
• amplifier type: Combo
• impedance: 8 Ohms
• power: 30 W
• suitable for: Bass Guitar
• country of origin: China

offer guitoamps:

• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock
• best offers: True
• started: March 5, 2026

shipping guitoamps:

• cost: $91.50
• carrier: USPS, UPS, FedEx
• class: Standard, Economy
• transit: 8-12 Days
• service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy
• type: Calculated

returns guitoamps:

• policy: No Returns

seller guitoamps:

• # reviews: 75
• rating: 100.0%
• city: Seguin, Texas

general guitoamps:

• condition: Used
• Musical Instruments Gear > Guitars Basses > Guitar Amplifiers

payments guitoamps:

• credit card: Discover
• wallet: Apple-pay
• other

Guitar Research GR-30B Is Similar To:

• Fender Lt25 Mustang Combo Guitar Amplifier Barely Used In Excellent Condition (24.3% similar) USB interface for recording or firmware updates. Single 8 fender special design Guitar speaker. 25-WATT combo amplifier. It is in like new condition...(May 16th, 2024)
• National Gap-2 Guitar Amplifier 8 Watts Clean Made In Japan 1970s (23.5% similar) You can actually get the circuit to break up when strumming hard. Is an excellent quality aluminum knob. In great condition. Works as it should. Made in japan 1970 S national GAP-2 amplifier...(May 17th, 2024)
• Mesa Boogie 1.mm.ab.g10 Mark Five 25 1x10 Combo Guitar Amplifier (19.8% similar) Great sounding highly versatile amp. Has foot switch cable. 2 channels with three modes per channel. Switchable to 10 watts . Rare custom gray color. 2021 year of manufacture. Mint condition 2021 custom gray mesa boogie mark v 25 combo amp...(May 17th, 2024)
• Vox Mini5 Rhythm Modeling Guitar Amplifier With Rythm (26.7% similar) Has original box, not pictured but in good condition. Used, had it for years and kept in good condition the whole time. Will provide a cable as well upon purchase...(May 17th, 2024)
• Vox Ac4c1-12 Classic 4-watt 1 X 12 Inch Tube Guitar Combo Amplifier black (21.6% similar) Whether you're a beginner or an experienced musician, this Cox AC4C1-12 classic 4-WATT 1 x 12 tube Guitar combo amplifier is great investment. This Cox AC4C1-12 classic 4-WATT 1 x 12 tube Guitar combo amplifier in black is the perfect addition to any musicians collection. The Cox brand is known...(May 17th, 2024)
• Orange 20rt Crush All-analog Twin-channel Guitar Amplifier (21.1% similar) Orange crush 20RT all-analog twin-channel Guitar amplifier, comes power cord and owners manual...(May 17th, 2024)
• Marshall 030463387405 Code 50 1x12 Inch 50-watt Digital Modeling Combo Guitar Amplifi E14000964 (16.7% similar) Works great, just dusty from being in storage...(May 17th, 2024)
• Peavey Rage-258 Rage 258 Guitar 1x8ftft 25-watt Combo Amplifier (32% similar) The amplifier also has a strong cigarette smell. There is a dent on the front of amplifier. See pictures for details. A moderate amount of scratches and scuff marks are on the combo amplifier from past use handling. Number of speakers: powers on and functional. Pawn America key...(May 17th, 2024)
• Monoprice 611815 Stage Right By 15-watt 1x12 Guitar Combo Tube Amp With Celestion (20.3% similar) The front is damaged needs to be screwed back in please advice...(May 18th, 2024)
• Vox 60vox005 Used Ac4 Hand-wired Guitar Amp Combo With Cover (33% similar) This is an impressive single ELI-84 powered compact with a 12 greenback speaker. This comes with vintage-style fawn Rolex for a cool aesthetic and chicken head knobs. And hot/cool switch to boost the drive. There is a volume, tone, gain, bass, treble. Used Cox AC4 hand-wired Guitar combo...(May 18th, 2024)
• Top Hat 60top000 Used King Royale Guitar Amp Combo With Footswitch And Cover (28.3% similar) Altogether, its a great deal on rare find, and likely to go fast. This is in excellent condition and comes with its foot switch a TKO cover. You know what they call a great British-style EL84 amp. The second channel delivers the iconic overdrive tones of Cox AC-30S top boost...(May 18th, 2024)