Amp one
Electric Bass Amplifier
The amp one is an all-rounder, designed for the bassplayer who is used to switch between several styles and who sets value on weight, dimensions and easy operation. The 10-inch high performance bass-loudspeaker supports this versatility whilst simultaneously adding some tube-like compression. The design of the power-amp especially supports the impulse response and provides impressive power at short term, exceeding significantly the specified 200 W on 8 ohm, which you can clearly hear.
Controls and Connections:
Front side:
- input: Jack socket ¼“ (6.35 mm)
- high/low: High/low-switch: up= high, down= low
- gain: Input level control
- clip: Overload indicator
- mute: Channel mute switch
- colour: Switch for the tone colour: up= not active, down= active
- bass: Bass level conrol
- bass boost: Boosts the lower bass frequencies at 55 Hz
- middle: Middle level control
- freq.: Operating frequency of bass middle treble control
- bandwidth: Bandwidth the notch filter up= wide, down= narrow
- treble: Treble level control
Tone balance:
- balance: Balance tone control, allows bass or treble accentuation or a combination of both
- intensity: Balance level control
Compressor:
- threshold: Control for compressor threshold
- ratio: Control for degree of compression Left stop: no compression Right stop: maximum compression
- active on/off: Switch to activate the compressor
Master:
- master: Master level control
- power: On/Off operation LED
Rear side:
- gnd lift: Switch that disconnects signal ground from protective earth. Useful as remedy for hum loops. Generally, it should stay in the off position (not pushed in).
- headphones: Output for headphones. The loudspeaker of the amplifier is switched off when this socket is used. Caution: Please use only headphones with stereo (TRS) jack plug in this output socket. Connecting a mono plug may cause malfunction or damage.
- line out: Preamplifier output post master and tone controls, with effects
- sub out: Unfiltered / filtered output for an active / passive subwoofer
- footswitch: Connector for a dual footswitch Stereo jack socket, assignment: Tip = switch for internal effect Ring = switch for external effect (send / return)
- send: Output for an external, parallel effect loop in conjunction with return.
- return: Input of the external, parallel effect loop (see also send). Can also be used alone as additional input.
- insert pre/post eq: are two more effect loop paths to loop additional external effects (filter, compressor etc.) into the signal path, either pre or post equalization.
- aux in: Auxiliary input, 3.5 mm / 6.35 mm (stereo) jack socket, Stereo cinch (RCA) sockets (L/R) Additional input for general sources with line level, e.g. CD player. Mono or stereo jack plugs can be used. Also usable as mono input.
- tuner: Output for a tuner.
- aux level: Aux level control
- pre/post: Switches the DI out pre or post the tone controls
- DI level: DI level control
- DI: Balanced XLR output, pre master
- power: Power on/off switch, combined with mains inlet (IEC C14 type) and compartment for mains fuse (see technical data).
Technical specifications:
- Input: 6.3 mm (1/4”) input jack socket as high impedance line input stage with pad (high/low attenution).
- Equalizer: three band tone controls with middle parametric
- Colour: ‘mid-cut-treble-boost’-filter
- Tone balance: the tone balance enables the bass-or treble emphasis or a combination of both
- Effect: compressor with ratio and threshold
- Power amp: 200 W / 8 ohms, dynamic control
- Analog signal processing: subsonic filter, low distortion RMS limiter
- Speaker system: 10“ woofer neodymium magnet
- Features: ground lift, headphones, line out, sub out, footswitch (muting and effect loop), send, return, insert pre/post EQ, aux in, adjustable DI-out
- Dimensions: 325mm x 375 mm x 295 mm (12.80“ x 14.80“ x 11.60“), HxWxD
- Weight: 14,1 kg (31,08 lbs)
