Koch Amps Jupiter Junior J20C ComboGreen
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Koch Amps
Jupiter Junior J20C ComboGreen
Product Info
Article Number:
437489
Brand:
Koch Amps
Model:
Jupiter Junior J20C ComboGreen
Category:
Tube Guitar Combos
Price:
$713.90
* Prices may vary. Check retailer for current pricing and availability.
The Jupiter Junior J20C is a fantastic little amp for home recording and smaller gigs. Koch’s clever ATR technology gives you a surprisingly big, warm tube amp sound in a compact package. It's a great choice for players who love a vintage vibe and want a versatile, manageable amp without the massive footprint.
Product Description
- Koch Amps Jupiter Junior J20C Combo
- Electric Guitar Combo
- ATR Technology
- Rated power: 20 Watts
- Equipped with: 1 x 10" Jensen Falcon C10-40 Speaker
- 1 x 12AX7 tubes in preamp and power amp
- 3 Switchable channels (Clean - Hot - Hot Gain Boost)
- 3-Band EQ
- Buffered Effect Loop
- Spring Type Reverb
- Recording Output with Passive Speaker Emulation Filter
- External speaker connection
- Dimensions (W x D x H): 450 x 420 x 235mm
- Weight: 12 KG
PROS
- • Jensen Falcon speaker delivers exceptional clarity and warmth.
- • Koch's ATR technology convincingly emulates high-wattage tube amp tones.
- • The 12AX7 tubes provide a classic, responsive, and dynamic feel.
- • Well-built chassis and components suggest long-term reliability.
CONS
- • 20 watts might be limiting for louder band settings or gigging.
- • The 3-band EQ offers limited tonal shaping compared to more complex amps.
- • ComboGreen aesthetic might not appeal to all players' tastes.
Product Video
Key Features
Power (Watts)
20
Tubes
1 x 12AX7 (preamp) + 1 x 12AX7 (power amp)
Speaker
1 x 10 in Jensen Falcon C10-40
Channels
3 (Clean - Hot - Hot Gain Boost)
Effects
Spring Reverb, Buffered Effect Loop
Weight
12 KG
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Frequently Asked Questions
ATR simulates the sag and compression of higher-wattage amps, adding a touch of dynamic response and a more 'lived-in' feel, especially when pushed.
Yes, it’s a classic spring reverb – think vintage Fender – with a nice, splashy decay that’s not overly long or muddy.
While manageable, 12kg is still substantial; it's better suited for studio use or smaller venues than frequent hauling.
