Peavey JSX Half Stack Guitar Amplifer
Peavey JSX Head
The Peavey JSX head is a the 3-channel, EL34-powered head, which was designed with legendary virtuoso Joe Satriani to combine the tonal flexibility and responsive, versatile gain structures he's always sought into a single amp. The resulting JSX features a completely pure, articulate Clean channel; a punchy Crunch channel that's great for rhythm and leads; and an explosive Ultra channel with loads of gain, a vintage British flavor, and outstanding "chunk" on even the E, A and D strings. Other features include global Resonance and Presence controls; 3-band EQ per channel; a fantastic, fully adjustable Noise Gate; and separate Fat switches on the Crunch and Ultra channels.
Peavey Electronics and Joe Satriani set out to create an amplifier that would give the widest range of EQ options and gain structures possible. As a starting point in creating this ultimate tone amp, Peavey amplifier design engineers began with two amps Satriani has used extensively throughout his career: the Peavey Classic® 50 and, more recently, Peavey Triple XXX® Series amps. "I started to rely on those amps quite a bit, but I wound up in a situation where my live rig was completely different from what I used in the studio," he said. One of the main goals of the JSX amp project was to bring these different tones and EQ options together in one amp.
Peavey JSX Features
- Designed to Joe Satriani's specifications
- Global Resonance and Presence controls
- Three-band EQ on each channel
- Punchy high-gain structure on the Crunch and Ultra channels
- Ships with EL34 tubes, and can be configured for 6L6 tubes
- Fully adjustable noise gate for the Crunch and Ultra channels
- Separate Fat switches on the Crunch and Ultra channels
- All controls located on the front panel
Peavey JSX 4x12 Guitar Cabinet Features
- 400 watts continuous power handling
- 16 ohms mono
- Four 12 inch custom JSX™ speakers (rear-mounted)
- 11-ply birch baffle
- Microphone-simulated XLR direct output so the user gets Joe's live, onstage tone (speakers remain active when direct output is used) without using a separate mic and stand
- Black weave grille cloth with JSX logo
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Item Specifications and Additional Product Information
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Peavey JSX Specifications
POWER AMPLIFIER SECTION
Tubes: Four EL34 tubes with 12AX7 driver
Rated Power & Load: 120 Watts RMS into 16, 8 or 4 Ohms
Power @ Clipping (typically @ 5% THD, 1 kHz, 120 VAC line): 120 Watts RMS into 16, 8 or 4 Ohms
Frequency Response: +/-3 dB, 50 Hz to 20 kHz @ 90 Watts RMS
into 8 Ohms
Hum & Noise: Greater than 76 dB below rated power
Power Consumption: 400 Watts, 50/60 Hz, 120 V AC
PREAMP SECTION
Tubes: Three 12AX7 tubes
The following specs are measured @ 1 kHz with the controls preset as follows:
- All EQ controls @ 5
- Ultra & Crunch Volumes @ 10
- Master Volume @ 5
- Resonance and Presence controls @ 5
- Effects Send @ 0
- Effects Return @ 10
- Nominal levels are with Gain @ 5
- Minimum levels are with Gain @ 10
- All levels increased by 6 dB if using
Low Gain input
Clean Channel
Nominal Input Level: -10 dBV, 300 mV RMS
Minimum Input Level: -22 dBV, 80 mV RMS
Maximum Input Level: 0 dBV, 1 .0 mV RMS
Crunch Channel
Nominal Input Level: -60 dBV, 1 mV RMS
Minimum Input Level: -90 dBV, 0.03 mV RMS
Ultra Channel
Nominal Input Level: -70 dBV, 0.3 mV RMS
Minimum Input Level: -90 dBV, 0.03 mV RMS
Effects Send
Load Impedance: 47 k Ohms or greater
Minimum Output: -10 dBV, 300 mV RMS
Maximum Output: 0 dBV, 1 V RMS
Effects Return
Impedance: High Z, 80 k Ohms
Minimum Input Sensitivity: -10 dBV, 300 mV RMS
Maximum Input Sensitivity: 0 dBV, 1 V RMS
Line Output
Load Impedance: 47 k Ohms or greater
Adjustable Output: +/- 20 dBV, 0.1V RMS-10 V RMS
Remote Footswitch
Special three-button metal footswitch with LED indicators and detachable cord (supplied)
Selects between three channels and bypasses effects loop
System Hum & Noise @ Nominal Level
Clean channel - 20 Hz to 20 kHz unweighted
Greater than 74 dB below rated power
Adjustable noise gate circuitry for Ultra & Crunch
Equalization
Custom bass, mid & treble passive-type EQ on Clean channel
Separate active +/-12 dB bass, mid & treble EQs on Ultra & Crunch channels
Fat switches on Ultra & Crunch modifies low frequency response
Resonance and presence damping EQ controls in power amp
Dimensions & Weight
11 inches H x 26.5 inches W x 11 inches D (279 x 673 x 279 mm)
52 lbs. (23.6 kG)
Peavey JSX 4x12 Specifications
Dimensions:
30.062 inches W x 31.875 inches H x 14.25 inches D
Weight:
86.5 lbs
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Manufacturer Info
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Helpful Info about the Manufacturer
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Phone:
601-483-5365
Warranty:
Guitars/Basses, Amp, Pre-Amps, Mixers, Electronic Crossovers & EQs: 2 years *(+ 3 years)
Drums: 2 years *(+ 1 year)
Enclosures: 3 years *(+ 2 years)
Digital Effects, Keyboard & MIDI Controllers: 1 year *(+ 1 year)
Mics: 2 years
Speaker Components (incl. replacement parts) and all Accessories: 1 year
Tubes & Meters: 90 days
* Add'l warranty period applicable if Warranty Registration Card is completed & returned to Peavey by original retail purchaser within 90 days.
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