Pricing and availability
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Average Price: $487
Standard/Professional
$200
$701+
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Budget
Standard
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Price History
Based on price data from 2 merchants for "Phil Jones Bass Double Four BG-75 Bass Combo Amplifier". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
The Phil Jones Double Four BG-75 Bass Combo Amplifier is a compact powerhouse that redefines what small amps can achieve. Perfectly designed for both practice and performance, this amp is equipped with dual 4-inch PJB NeoPower speakers delivering remarkable sound clarity and depth. Despite its diminutive size, this 70-watt amp produces a rich, resonant bass sound that's hard to believe it's coming from such a small package.
The secret to its superior sound lies in its cutting-edge technology. Each speaker is driven by its own Pulse Width Modulation (PWM) amplifier, ensuring high efficiency and low heat production. The amp also features a custom Rectangular Auxiliary Low Frequency Radiator (RALFR), enhancing low-end frequencies and reducing unwanted coloration for a true-to-life sound reproduction. Whether you're playing a 4-string or an extended-range bass, the Double Four handles every note with precision.
This amp isn't just about delivering great sound; it’s also incredibly versatile. With a 3-band EQ, you can fine-tune your sound to perfection. The auxiliary input allows for seamless integration with your iOS device or mp3 player, making it easy to jam along with your favorite tracks. Plus, the headphone output is perfect for silent practice, while the line out lets you record with ease.
Key Features:
- 70-watt digital amplifier with dual 4-inch PJB NeoPower speakers
- Independent PWM amplifiers for each speaker
- Custom RALFR for enhanced low frequencies (30 - 150 Hz)
- 3-band EQ with +/- 18 dB boost/cut per band
- Aux input for iOS/mp3 devices and headphone output for silent practice
- Durable, compact enclosure with internal bracing and acoustic damping
- Line output for recording and IEC mains socket for power connection
- Frequency response: 60 - 15,000 Hz
- Weight: 4 kg; Color: Black
Product specs
| Available since | April 2013 |
| Power in W | 70 W |
| Speaker component | 2x 4" |
| HF-Horn | No |
| Equalizer | 3-Band |
| Compressor | No |
| Limiter | No |
| Effects Unit | No |
| Headphone Output | Yes |
| DI Output | No |
| Speaker Connector | No |
| CD/MP3 Input | Yes |
FAQs
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What is the power output of the Phil Jones Double Four BG-75 Bass Combo Amplifier?
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The Phil Jones Double Four BG-75 Bass Combo Amplifier has a power output of 70 watts, making it suitable for practice sessions and small performances.
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Does the Phil Jones Double Four BG-75 have a headphone output for silent practice?
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Yes, the Phil Jones Double Four BG-75 includes a headphone output, allowing for silent practice without disturbing others.
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What size speakers does the Phil Jones Double Four BG-75 use?
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The Phil Jones Double Four BG-75 is equipped with two 4-inch speakers, providing a compact yet powerful sound for bass amplification.
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Is the Phil Jones Double Four BG-75 suitable for recording purposes?
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While the Phil Jones Double Four BG-75 does not have a DI output, its clear and detailed sound makes it a good option for mic'd recording sessions.
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Does the Phil Jones Double Four BG-75 Bass Combo Amplifier have built-in effects?
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No, the Phil Jones Double Four BG-75 does not include built-in effects, but it features a 3-band equalizer to shape your tone.
Videos
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Reviews
PROS
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Huge sound in a small, portable package
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Exceptional for acoustic gigs and practice
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Can run off a laptop battery for hours, ideal for busking
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Crystal clear hi-fi sound without distortion at high volumes
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Very effective EQ; tiny adjustments make a big difference
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Handles low B on 5- and 6-string basses with ease
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Build quality seems very decent, indicating durability
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Great for small gigs, even with a piano or guitars
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Can be used as a personal monitor on stage
CONS
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Pricey compared to some alternatives
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Might not be loud enough to compete with drums
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Lacks recommendations for a compatible battery supply
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AUX and master volume controls could be more intuitively designed
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Bass oomph heard through speakers does not fully translate to headphones
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Phil Jones Bass Double Four BG-75 Bass Combo Amplifier.
Features and functionality
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Requires a wall behind to activate the passive radiator, enhancing low-end performance.
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The Double Four can operate via power banks, enhancing its portability for travel or outdoor use.
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The amp maintains a clean tone even at high volumes, appealing to those who prefer clarity over distortion.
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Comparisons
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The Double Four is noted as not being louder than the Fender Rumble 40, despite its tonal clarity.
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The M7 offers a fuller sound and doesn't rely on wall proximity, unlike the BG-75.
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An alternative to consider is the Ibanez Promethean P3110, which features a 300w output and a 10-inch speaker with cab output.
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Use cases and applications
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Ideal for transportable, small-space practice due to its compact size and bike/bus-friendly portability.
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The BG-75 fits into a backpack, making it ideal for transport to small rehearsals via public transport or bike.
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Users report successfully using the amp in small hall gigs, indicating its surprising volume capability.
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Value and pricing
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Considered overpriced for its sound output; alternative setups like a Zoom B1Four with a Bluetooth speaker are suggested for similar sound at a lower cost.
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User experience
Build quality
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Despite its small footprint, some Phil Jones amps can be surprisingly heavy, challenging their portability claims.
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Critic Reviews
5.0 out of 5
Based on 1 Review and 2 Ratings
143
Smol and sounds great
Sounds fantastic, handles a 5-string no problems and punches well above its weight on tone and volume. The ultimate in bass combo amp portability, I toss it into a DJ gear bag and can pretty painlessly take it anywhere.
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