Pricing and availability
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Price
Average Price: $885
High-end/Boutique
$300
$701+
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Budget
Standard
High-end
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Description
Elevate your sound with the Supro 1675RT Rhythm Master, a versatile combo amp that brings the legendary tone of its predecessors into the modern age. This powerhouse marries all-tube spring reverb and power tube tremolo with the flexibility of switchable Class A / Class AB wiring, offering unmatched sonic versatility. Whether you're crafting delicate melodies or roaring riffs, the independent bass and treble controls ensure your tone remains uniquely yours. Perfect for musicians seeking depth and clarity in their sound, the Rhythm Master stands as a testament to Supro's commitment to quality and innovation.
Key Features:
- All-tube spring reverb for lush, organic soundscapes
- Power tube tremolo adds a warm, pulsating effect to your tone
- Switchable Class A / Class AB power amp wiring for tonal versatility
- Independent bass and treble controls for precise sound shaping
- Inherits the revered tone and functionality of the S6420+ Thunderbolt Plus
Product specs
| Brand | Supro |
| Model | 1675RT Rhythm Master |
| Finish | Blue Rhino |
| Year | 2015 - 2025 |
| Made In | United States |
| Categories | Guitar Combo Amps |
| Built-In Effects | Built-In Effects |
| Electronics | Tube |
| Number of Channels | 1 Channel |
| Number of Inputs | 1 Input |
| Output Power (Watts) | 60 |
| Power Tube Type | 5881 |
| Reverb | Spring Reverb |
| Speaker Configuration | 1x15" |
FAQs
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What type of tubes are used in the Supro 1675RT Rhythm Master amplifier?
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The Supro 1675RT Rhythm Master amplifier uses 5881 power tubes, known for their robust and dynamic sound, making it suitable for a variety of playing styles.
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How many channels does the Supro 1675RT Rhythm Master have?
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The Supro 1675RT Rhythm Master features a single channel, providing a straightforward and focused tonal experience.
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Does the Supro 1675RT Rhythm Master have built-in effects?
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Yes, the Supro 1675RT Rhythm Master includes built-in effects, featuring a classic spring reverb to enhance your sound.
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What speaker configuration does the Supro 1675RT Rhythm Master use?
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The Supro 1675RT Rhythm Master is equipped with a 1x15" speaker configuration, offering a rich and full-bodied sound.
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Is the Supro 1675RT Rhythm Master suitable for live performances?
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With an output power of 60 watts, the Supro 1675RT Rhythm Master is powerful enough for live performances, providing ample volume and clarity for gigs.
Videos
ProGuitarShopDemos
Supro 1675RT Rhythm Master 1x15 Combo
Reviews
PROS
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Breaks up nicely at lower volumes on 35W setting
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Bright, full-range sound without being shrill
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Versatile tonestack, great for Blues/Rock
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Onboard reverb and tremolo add lush, swampy character
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Sufficient headroom for clean tones at gig volumes
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Handles pedals well, especially at 35W setting
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Organic, pleasing distortion quality
CONS
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Heavier than expected at over 50 lbs
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Onboard reverb not as impressive as Fender models
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Supro 1675RT Rhythm Master.
Features and functionality
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The Supro Keeley Custom is designed as a pedal platform with no mid EQ adjustment and a cathode-biased 25-watt output, featuring a Creamback speaker with 97dB sensitivity.
Source -
The Blues King 12 includes an FX loop, absent in newer Delta King models, allowing for separate modulation and drive effects, crucial for some users' setups.
Source
Comparisons
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The Supro Blues King 12 and Keeley Custom 12 are distinct lines, with the former offering a '50s "tweed" sound and the latter serving as a clean canvas for pedals.
Source -
The Blues King 12 is favored over other amps like the Blues Jr and Orange Tiny Terror for its unique sound, especially when paired with a Tube Screamer.
Source
User experience
Value and pricing
Use cases and applications
Critic Reviews
5.0 out of 5
Based on 1 Review and 1 Rating
468
Where is the 6th Star?
This amp is amazing. Pleasing, dirty, wild, soft... as you wish. I love the spring reverb and the tremolo is amazing - subtle on 35 Watts, crazy on 45/60 watts. It’s Alabama Shakes in-a-box, I mean in-an-amp. And when you crank the volume with a Tele - pure magic. And no - I‘m not a Jimmy Page fanboy. But a Supro-fanboy? Definitely yes.
Artist usage
Add artist
In a YouTube demo by ProGuitarShopDemos, Andy Martin showcases the Supro 1675RT Rhythm Master. This 6L6-powered combo amplifier, featuring a custom 15-inch speaker and unique tube-powered reverb and tremolo, offers versatile tonal options. The video highlights the amp's ability to switch between Class-A and Class-AB operation, providing different wattage and tremolo characteristics. The collaboration with Eminence on the speaker design and its vintage-inspired features make it a standout choice for Martin.
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Supro 1675RT Rhythm Master, it is most commonly used with the following gear.
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