Ibanez Promethean 20W 1×8 Bass Combo Amp

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Ibanez Promethean 20W 1×8 Bass Combo Amp


  • Power: 20W (solid state) Single channel Single input Speaker: 1×8 Ibanez Controls: 4-band EQ, volume -10dB input pad Aux. input Headphone output Closed-back cabinet Dimensions: 12.9 in. x 13.78 in. x 12.2 in. Weight: 17.19 lbs.
  • The Promethean 20W bass combo from Ibanez comes loaded with a single 8-in
  • driver, and simple controls for any level of player
  • The 4-band EQ allows for easy and nuanced tone shaping, the -10dB pad accommodates basses with active pickups, the aux
  • input lets you play along with your favorite tunes, and the headphone output allows you to practice silently while still having great, smooth bass tone in your ears


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More Tube Amplifiers To Choose From

Bluetooth Tube Amplifier Stereo Receiver - 600W Home Audio Desktop Stereo Vacuum Tube Power Amplifier Receiver w/ 2 Vacuum Tubes, AUX/MP3/Microphone Inputs, Pure Copper Speaker Output - Pyle PVTA20
  • 2 VACUUM TUBES: The Pyle Vacuum Tube Stereo Amplifier is perfect for your home entertainment system. Gives you 600W peak power w/ 2 vacuum tubes. Proven to sound better than regular amplifiers because of the euphonic distortions they add to the music
  • 3 INPUTS: The digital amp box supports MP3 audio playback and other external devices. It is equipped with MP3 input, microphone input, and AUX input (L/R). It is also equipped w/ two speaker outputs which can support two sets of speakers
  • BLUETOOTH-COMPATIBLE: The professional integrated indoor house stereo receiver is equipped w/ bluetooth wireless music streaming. Works w/ today’s latest devices including smartphones, tablets, laptops and computers with hassle-free receiver pairing
Dayton Audio HTA100BT Hybrid Stereo Tube Amplifier with Bluetooth USB Aux Phono in Sub Out 100W
52 Reviews
Dayton Audio HTA100BT Hybrid Stereo Tube Amplifier with Bluetooth USB Aux Phono in Sub Out 100W
  • Authentic vacuum tube warmth and character with class AB amplifier efficiency produces an articulate and natural sonic experience
  • Powerful 50 watts per channel of audiophile fidelity that is sure to please even the most discerning ear
  • Convenient input connections including USB, optical, coaxial, phono, stereo RCA, and Bluetooth V5
Rockville BluTube 70W Tube Amplifier/Home Theater Stereo Receiver with Bluetooth
  • Rockville BluTube Bluetooth tube 70 watt amplifier/home theater stereo receiver
  • Rockville BluTube audiophile grade tube amplifier with Bluetooth. 25 watts x 2 RMS @ 8 ohm. 35 Watts x 2 RMS @ 4 ohm. Tube Amps do not hard-clip even at high volumes and are extremely efficient. Due to this the amp sounds more like double the rated power!.
  • Built in Bluetooth with 33 foot range. Built-in preamplifier. (2) sets of RCA inputs to connect to any audio device like a TV, laptop, or MP3 player, etc.
Audiophile Vacuum Tube Amplifiers - Design, Construction, Testing, Repairing & Upgrading, Volume 1
  • Popovich, Igor S. (Author)
  • English (Publication Language)
  • 290 Pages - 01/29/2015 (Publication Date) - Career Professionals (Publisher)
Vacuum Tube Amplifier Basics
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Last update on 2021-05-07 at 21:20 PST/ Affiliate links / Images from Amazon Product Advertising API

Learn About The Tube Amps And How They Work

Chances are you’ve just bought your first Electric guitar and wish to find out all about guitar amps. Maybe you’re just curious as to how long amps have been around, how they work, or which to purchase. Whatever the reason, by reading this article, you’ll get answers.

History of the Amplifier

Guitar amps have been around for roughly 70 years now, having first appeared during the 1930s. The earliest amps had very poor high treble and bass responses. This was improved over time, as amps became better developed. During the ‘60s, the guitar amp greatly evolved to where it is today when guitarists of that era experimented with deliberately overloading their amp to create Distortion. From that point on, most amps were provided with preamp distortion controls. Playing with distortion has since become an important part of Electric guitar playing

Types of Amplifiers

There are two types of amps: solid state and vacuum tube amps. Additionally, there are some amps that combine both solid state and tube technologies. Most amps, especially the least expensive ones, are solid state because they are lighter and easier to repair than tube amps are. A lot of guitarists, however, prefer the tube amp due to the tube amp’s analog sensitivity, which they claim makes tube amps sound better. While this is probably the case, most beginners can’t afford to shell out the $500-$1000 it costs to buy a good tube amp. That’s why solid state amps are actually a good buy in some cases.

Solid state and vacuum tube amps come in combo (speakers and head) packages or separately. Guitarists who aren’t picky can just buy the combo, while those who are picky can “mix and match” heads and speakers. This is useful for those looking to achieve a certain sound.

How Amps Work/What Watts Mean

Without going into a big, long, technical explanation, amplifiers basically take the vibration (sound) of the string(s) and amplify it, thereby increasing the sound. If you wish to find out more about the technical side of guitar amps, there are several good books that cover the topic pretty thoroughly.

Each amplifier has a certain number of watts. The higher the number of watts, the louder the sound produced by the amp is. Generally speaking, those who wish to play shows will want to get amplifiers with at least 30 watts, preferably at least 50 watts, especially if they plan on playing at larger venues.