One Control BJF-S100 Amp

Marshall inspired with Echoplex delay

The One Control BJF-S100 brings back the ultra-compact, ultra-lightweight, and loud "plexi" British amp sound that supported rock sounds from the late 1960s to the early 1980s and is still synonymous with  "rock'" amps. It's an amp head.

By combining a solid-state preamp and a class D power amplifier, we have achieved a small, lightweight, and loud tone.
The analog solid-state circuit was developed based on the tone of vacuum tube amp heads produced in the 1960s, and is designed to operate in the same way as an actual vacuum tube amp head. It's not just a reproduction of a preamplifier, it also reproduces the operation and feedback of a power amplifier.

It also incorporates a delay of up to 600ms, reproducing "that" tape echo that was often used in conjunction with amplifiers at the time. Like the tape head of a tape echo, repeated feedback will warm up the sound and increase distortion. This warm tone doesn't interfere with your playing and can add depth to your guitar tone.

The BJF-S100's preamp section consists of two channels. The Lead channel creates distortion when a tube amp is pushed. It not only distorts similar sounds, but also reproduces the expressiveness and play feel that can be controlled by the guitar's volume and touch.
In addition, the gain range is further expanded to cover the so-called brown tone of a "modified amp head."

The Rhythm channel is specifically modeled after the clean tones used by legendary guitarists from around the late 60's. You can also create a British overdrive tone by increasing the GAIN.

Master, Presence, Tone Stack, and Delay can be set individually for each channel, so you can create the perfect tone for rhythm and lead, and even use it to change depth.

The BJF-S100 can create great tones with many British style guitar cabinets, including the well-known "V30" speaker, one of the most popular speakers. In particular, the Celestion G12MH and Celestion EVH speakers demonstrate their potential.

BJF-S100 outputs 100W at 4Ω, 66W at 8Ω, and 30W at 16Ω.


●Control
Lead channel
/GAIN: Adjust the strength of distortion. Covers up to high gain.
・MID: Adjusts the mid-range tone.
・BASS: Adjusts the low range tone.
・TREBLE: Adjusts the treble tone.
・TIME: Adjust the delay time of the delay applied to the Lead channel.
・LEVEL: Adjust the volume of the delay applied to the Lead channel.
・REPEAT: Adjust the delay feedback applied to the Lead channel.
・CLARITY: Makes the tone a little brighter and clearer.
・BODY: Slightly expands the mid-low range of the tone. The tone itself doesn't change much.
・PRESENCE: Adjusts the tone even higher than TREBLE.
・MASTER LEAD: Adjust the overall volume of the Lead channel.

Rhythm channel
・GAIN: Adjust the strength of distortion. Covers up to high gain.
・MID: Adjusts the mid-range tone.
・BASS: Adjusts the low range tone.
・TREBLE: Adjusts the treble tone.
・TIME: Adjust the delay time of the delay applied to the Rhythm channel.
・LEVEL: Adjust the volume of the delay applied to the Rhythm channel.
・REPEAT: Adjust the delay feedback applied to the Rhythm channel.
・PRESENCE: Adjusts the tone even higher than TREBLE.
・MASTER RHY: Adjust the volume of the entire Rhythm channel.

CHANNEL: Switch channels.

●Input/output terminals
/INPUT: Connect cables from instruments and effect boards.
・EFFECTS LOOP: This is a series effects loop used when connecting effects between the preamp and power amp. Connect a cable from the SEND to the effect input, and from the effect output to RETURN.
・PREAMP OUT: Outputs the signal from the preamp. Use when using an external power amplifier or outputting line through an external speaker simulator. If you connect a plug here, no signal will be output from the SPEAKER settings.
・SPEAKER: Connect the speaker cable. 30W/16Ω, 66W/8Ω, 100W/4Ω.
・FS-P3B: Connect the One Control FS-P3 footswitch (sold separately).
・FOOTSWICH (CHANNEL): Connect the latch switch that controls channel switching.
・FOOTSWITCH (FX LOOP): Connect the latch switch that turns the effect loop ON/OFF.
・FOOTSWITCH (DELAY): Connect the latch switch that turns the delay effect ON/OFF using a monaural cable.
・DC IN: Connect the dedicated adapter.

●Specifications

• Output: 30W/16Ω, 66W/8Ω, 100W/4Ω
• Independent tone stack for each channel
• Tape echo style delay that can be set for each channel
• Delay effect: ON/OFF supported by foot switch, maximum 600ms
• Size: 26.5 (W) x 9.5 (D) x 8.5 (H) cm (not including protrusions)
• 26.5 (W) x 11.8 (D) x 10.3 (H) cm (handle folded)
• Weight: 1.76 kg