Hammond Portable B-3 mk2vsHammond XK-4
Summary
Hammond Portable B-3 mk2 and Hammond XK-4: 2 Hammond organs compared side by side. They differ on 11 of 15 compared specifications.
| 2 items | Hammond Portable B-3 mk2CurrentView details → | Hammond XK-4CurrentView details → |
|---|---|---|
| General | ||
| Manufacturer | Hammond | Hammond |
| Status | Current | Current |
| Keyboard | ||
| Manuals | 2 | 1 |
| Keys per manual | 61 | 61 |
| Key action | Waterfall | Waterfall |
| Keybed | Two 61-note waterfall manuals with multi-contact drawbar keying and 12 preset keys each; pedalboard connects separately | Semi-weighted square-front waterfall, velocity-sensitive, virtual multi-contact |
| Sound | ||
| Drawbars | Physical | Physical |
| Sound engine | DTW1 digital tonewheels (manuals), VASE III (pedals) | MTW2 (Modelled Tone Wheel 2) organ engine |
| Organ models | Hammond DTW1 digital tonewheels, B-type and Mellow voicings | Hammond MTW2 modelled tonewheels, Vx, Farf and Ace transistor organs, classical and theatre pipe organ |
| Polyphony | Full polyphony (manuals), 8 (pedals) | 61 (tonewheel organ) |
| Connections | ||
| Outputs | 1/4-inch unbalanced, Headphones, Leslie 11-pin | 1/4-inch unbalanced, Headphones, Leslie 11-pin |
| MIDI ports | DIN in, DIN out | DIN in, DIN out, USB |
| Pedal inputs | Expression, Rotor speed, Pedalboard | Sustain, Expression, Rotor speed, Footswitch |
| Features | ||
| Features | Two 61-note manuals, Four sets of drawbars plus pedal drawbars, 12AU7/12AX7 tube preamp, Digital Leslie, Two 11-pin Leslie sockets (main and echo), Stand and music rack included | Nine physical drawbars, Virtual multi-contact keying, Tube modelling, Digital Leslie (8 cabinets), Pitch and mod wheels, Rotary and organ pedal outputs, Aux input, Colour display, Beech side panels |
| Size & weight | ||
| Colours | Red walnut | Black |
| Dimensions (W × D × H) | 1230 × 730 × 1170 mm | 1004 × 322 × 109 mm |
| Weight | 85 kg | 9.4 kg |
Key differences
- Manuals: Portable B-3 mk2 – 2 XK-4 – 1
- Keybed: Portable B-3 mk2 – Two 61-note waterfall manuals with multi-contact drawbar keying and 12 preset keys each; pedalboard connects separately XK-4 – Semi-weighted square-front waterfall, velocity-sensitive, virtual multi-contact
- Sound engine: Portable B-3 mk2 – DTW1 digital tonewheels (manuals), VASE III (pedals) XK-4 – MTW2 (Modelled Tone Wheel 2) organ engine
- Organ models: Portable B-3 mk2 – Hammond DTW1 digital tonewheels, B-type and Mellow voicings XK-4 – Hammond MTW2 modelled tonewheels, Vx, Farf and Ace transistor organs, classical and theatre pipe organ
- Polyphony: Portable B-3 mk2 – Full polyphony (manuals), 8 (pedals) XK-4 – 61 (tonewheel organ)
- Dimensions (W × D × H): Portable B-3 mk2 – 1230 × 730 × 1170 mm XK-4 – 1004 × 322 × 109 mm
Both are the same on keys per manual (61), key action (Waterfall) and drawbars (Physical).

