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Average Price: $2,399
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$200
$701+
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Description
Dive into the golden era of bass amplification with the Ampeg B-15NF Portaflex, a cornerstone of vintage tone from 1965 to 1967. This iconic bass combo amp marries the warmth of fixed-bias 6L6GC tubes with a sleek, stage-ready aesthetic. Its refined single-baffle design ensures your lows are tight and punchy, while the transition to smooth black vinyl with chrome trim in 1967 adds a touch of class to any performance. Whether you're laying down the groove in the studio or bringing the house down live, the B-15NF Portaflex delivers unparalleled vintage vibe and sound.
Key Features:
- 30 watts of power through fixed-bias 6L6GC tubes for rich, warm tones
- Transitioned to smooth black vinyl with chrome trim in 1967 for a sleek look
- Refined single-baffle design for tighter, punchier lows
- Iconic light-up lucite logo and stamped chrome-plated chassis for a vintage aesthetic
Product specs
| Brand | Ampeg |
| Model | B-15NF Portaflex 25-Watt 1x15" Bass Combo |
| Finish | Checkered Blue Vinyl |
| Year | 1965 - 1968 |
| Made In | United States |
| Categories | Bass Combo Amps, Guitar Combo Amps |
| Direct Output | No Direct Output |
| Electronics | Tube |
| Number of Channels | 2 Channels |
| Number of Inputs | 3 Inputs |
| Output Power (Watts) | 25 |
| Power Tube Type | 6L6 |
| Reverb | None |
| Speaker Configuration | 1x15" |
FAQs
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What type of tubes does the Ampeg B-15NF Portaflex use?
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The Ampeg B-15NF Portaflex uses 6L6 power tubes, which are known for their warm, rich tone and are commonly used in vintage and boutique amplifiers.
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How many channels does the Ampeg B-15NF Portaflex have?
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The Ampeg B-15NF Portaflex features two channels, allowing for versatility in tone shaping and input options for different instruments or playing styles.
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Is the Ampeg B-15NF Portaflex suitable for live performances?
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With its 25-watt output and 1x15" speaker configuration, the Ampeg B-15NF Portaflex is well-suited for small to medium-sized venues, offering classic tube-driven sound with sufficient volume for live settings.
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Does the Ampeg B-15NF Portaflex include a direct output for recording?
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The Ampeg B-15NF Portaflex does not feature a direct output, so recording would require a microphone placed in front of the amp or an external DI box.
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What is the speaker size in the Ampeg B-15NF Portaflex?
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The Ampeg B-15NF Portaflex is equipped with a 15-inch speaker, providing deep bass response and full-bodied sound that is ideal for bass guitar amplification.
Reviews
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ampeg B-15NF Portaflex 30-Watt 1x15" Bass Combo 1965 - 1967.
Features and functionality
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The B-15NF features a 30-watt fixed bias circuit introduced in 1965, which is a jump from the earlier cathode biased 25-watt versions.
Source
Build quality
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The original Jensen concert speakers used before 1966 were replaced by CTS speakers, impacting tonal characteristics.
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Setup and maintenance
Comparisons
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The earlier volume-to-tone circuit layout offers a more compressed sound compared to the volume/tone and fixed bias circuits.
Source
Based on 0 Reviews and 0 Ratings
Artist usage
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In an interview with Reverb, Lou Barlow is seen using an Ampeg B-15NF Portaflex 30-Watt 1x15" Bass Combo from 1965-1967.
Phil Lynott used the Ampeg B-15NF Portaflex 30-Watt 1x15" Bass Combo during a live performance with Thin Lizzy at the Sydney Opera House on October 29, 1978. This is documented in the YouTube video "Thin Lizzy – Jailbreak (Live in Sydney 1978) | 4K Remastered," shared by Fabrício Gabriel. The footage clearly shows Lynott with this amplifier, highlighting its role in his live setup.
At the 13:53 mark of the video "Bass Recording Setup & Pedals with Jon Button - Warren Huart: Produce Like A Pro," they discuss mic'ing up Jon Button's Ampeg B-15NF Portaflex 30-Watt 1x15" Bass Combo from 1965 - 1967.
In this Reverb article it mentions a 1967 Ampeg Portaflex B-15 bass amp that's used in the Spacebomb Studio where Cameron Ralston is the bass player. It can also be seen in this photo of Cameron Ralston in the Spacebomb studio: https://spacebombgroup.com/wp-content/images/CameronRalston_Press02.jpg
Album Usage
The Ampeg B-15NF Portaflex 30-Watt 1x15" Bass Combo 1965 - 1967 has been featured on the following albums:
Genre Usage
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Used With
Based on how musicians on Equipboard use Ampeg B-15NF Portaflex 30-Watt 1x15" Bass Combo 1965 - 1967, it is most commonly used with the following gear.
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