Ampeg SVT-4 PRO Bass Head
Brand New. Authorized Dealer
Unrivaled Headroom and Hybrid Versatility: Comprehensive Ampeg SVT-4PRO Bass Head
The Ampeg SVT-4PRO stands as a premier rackmount bass amplifier head engineered to marry iconic tube warmth with immense power delivery and sophisticated signal shaping. Built for demanding touring artists and session professionals, it offers total control over every frequency zone, providing massive low-end punch, articulate midrange clarity, and smooth high-end definition.
Immense Power and All-Tube Preamp Circuitry
At the heart of the Ampeg SVT-4PRO lies a true tube front-end utilizing three 12AX7 vacuum tubes. This arrangement delivers the celebrated, harmonic-rich "Ampeg sound" with natural compression and touch-sensitive saturation. Its solid-state power section delivers versatile operational modes:
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Stereo Mode: 2 x 600W at 2 Ohms, 2 x 490W at 4 Ohms, or 2 x 300W at 8 Ohms.
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Mono Bridge Mode: 1200W at 4 Ohms or 900W at 8 Ohms.
This massive headroom ensures effortless performance across stadium stages and festival rigs without losing note definition.
Precision EQ and Dynamics Processing
The SVT-4PRO features comprehensive tone-shaping tools and onboard dynamic regulation:
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Dual EQ System: Features a 3-band EQ coupled with a 5-position Mid-Tone Control selector and an assignable 9-band graphic equalizer for precise room correction.
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Voicing Switches: Ultra Hi, Ultra Lo, and Bright switches allow instantaneous sculpting of frequency extremes.
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Onboard Compression & Limiting: A variable compressor (ranging from 1:1 to 10:1) stabilizes playing dynamics, while an opto-coupler limiter prevents power amp clipping.
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Bi-Amp Crossover: Features built-in frequency and balance controls to split the signal for bi-amped speaker configurations.
Connectivity options include a buffered FX Loop, Preamp Out / Power Amp In patch points, Tuner Out, balanced XLR line outputs, 1/4" Jack outputs, and a 0dB / -15dB input pad for high-output active basses.
Specifications of Ampeg SVT-4PRO
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Device Type: Hybrid Bass Amplifier Head
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Format: Rackmount (3U)
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Preamp Tubes: 3 x 12AX7
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Power Output (Stereo): 2 x 600W (2 Ohms), 2 x 490W (4 Ohms), 2 x 300W (8 Ohms)
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Power Output (Mono Bridge): 1200W (4 Ohms), 900W (8 Ohms)
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Controls: Gain, Volume, 5-Position Mid-Tone Control, Compression Level, Crossover Frequency & Balance, Line Out Level
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Equalization: 3-Band EQ + 9-Band Graphic Equalizer
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Voicing Switches: Ultra Hi, Ultra Lo, Bright, Input Pad (0dB / -15dB)
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Dynamics Processing: Variable Compressor (1:1 to 10:1), Optical Limiter
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Operation Modes: Stereo, Mono Bridge, Bi-Amp Crossover
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Inputs/Outputs: Instrument In (1/4" Jack), FX Loop, Power Amp In / Preamp Out, Tuner Out
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Line Outputs: 2 x XLR (Balanced), 2 x 1/4" Jack
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Dimensions: 483 x 142 x 394 mm
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Weight: 18 kg
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Country of Origin: China
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Warranty: 12 Months (+ 12 months free service maintenance)
Review of Ampeg SVT-4 PRO Bass Head📍 All amplifiers marked “In Ukraine” are located in our shop in Dnipro, Ukraine.
We are verified sellers and official dealers for many brands, with 15+ years of international experience.
We’ve shipped thousands of guitars and amps worldwide — to Europe, the UK, Japan, Australia, New Zealand, and the USA — even during wartime, without any issues.🚚 Worldwide shipping: via Ukrposhta or EMS, safe and fully insured (usually $150–200).
📦 Shipping across Ukraine: via Nova Poshta or local pickup with a chance to test the instrument through tube amps (Mesa Boogie, Marshall, Fender, Soldano, Friedman, Vox, and more).
