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Marantz 140 Power Amplifier + 3200 Pre-Amplifier + 112 Tuner – Complete Vintage Marantz Stack – Professionally Restored – 1-Year Warranty
Original price was: $5,279.$4,399Current price is: $4,399.
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- Complete 3-Piece Vintage Marantz Separates Stack — Amp + Preamp + Tuner
- Marantz 140: 80W + 80W (8Ω) Solid-State Power with Dual Peak Indicators
- Marantz 3200: Full-Function Control Console with Bass / Mid / Treble Controls
- Marantz 112: MOS-FET Front-End AM/FM Stereo Tuner with Gyro-Touch Tuning
- Matching Classic Marantz Faceplates — A Beautiful, Cohesive Stack
- Professionally Restored and Calibrated by HQaudios
- Fully Tested Together as a Complete System
- Free Shipping — Carefully Packed in Separate Protective Layers
- Backed by Our 1-Year HQaudios Warranty
1 in stock
Marantz 140 Power Amplifier + 3200 Pre-Amplifier + 112 Tuner – Complete Vintage Marantz Stack – Professionally Restored – 1-Year Warranty
Professionally Restored by HQaudios – Fully Tested – Backed by Our 1-Year Warranty.
Up for sale is a complete, matching vintage Marantz separates system from the golden age of analog audio: the Model 140 Stereo Power Amplifier, the Model 3200 Stereo Control Console Pre-Amplifier, and the Model 112 AM/FM Stereophonic Tuner — sold together as one set.
These three components were designed by Marantz to work together, sharing the same classic champagne faceplate, the same chassis proportions, and the same engineering philosophy. The 3200 handles source selection and tone shaping, the 140 delivers clean solid-state power through its famous dual peak indicators, and the 112 brings in warm, stable FM reception through its MOS-FET front end.
Buying the full stack at once means perfectly matched aesthetics, guaranteed system compatibility, and one shipment — an ideal foundation for a serious vintage Marantz system, ready for your favorite speakers and turntable.
Key Highlights
- Complete 3-Piece Vintage Marantz Separates Stack — Amp + Preamp + Tuner
- Marantz 140: 80W + 80W (8Ω) Solid-State Power with Dual Peak Indicators
- Marantz 3200: Full-Function Control Console with Bass / Mid / Treble Controls
- Marantz 112: MOS-FET Front-End AM/FM Stereo Tuner with Gyro-Touch Tuning
- Matching Classic Marantz Faceplates — A Beautiful, Cohesive Stack
- Professionally Restored and Calibrated by HQaudios
- Fully Tested Together as a Complete System
- Free Shipping — Carefully Packed in Separate Protective Layers
- Backed by Our 1-Year HQaudios Warranty
Sound Character
Together, this stack delivers the classic 1970s Marantz presentation that collectors prize: warm, full-bodied midrange, smooth and fatigue-free highs, and a relaxed, musical flow that makes long listening sessions effortless.
The 3200 pre-amplifier offers generous tone-shaping flexibility with its three-band controls, the 140 provides clean, stable power with plenty of headroom for real-world speakers, and the 112 pulls in FM broadcasts with the rich, analog warmth that vintage Marantz tuners are known for.
With the soft glow of the tuning dial and the flicker of the 140’s peak indicators, this stack is every bit as enjoyable to look at as it is to hear.
HQaudios Restoration & Testing Process
Before Restoration
After decades of service, each of the three units is carefully inspected before any restoration work begins.
For the 140 power amplifier, HQaudios pays particular attention to the power supply, output stages, and peak indicator circuits. For the 3200 pre-amplifier, every input, switch, and tone control is evaluated for noise and accuracy. For the 112 tuner, the MOS-FET front end, tuning mechanism, and stereo decoder are assessed for sensitivity and stability.
All signal paths, controls, and connectors across the three units are thoroughly inspected to accurately assess their operating condition.
During Restoration
Based on the initial inspection, each unit is restored according to HQaudios’ technical standards with the goal of preserving the original Marantz engineering and sound character.
Power supplies, signal paths, and internal circuit boards are inspected and serviced; components that no longer meet technical specifications are replaced where necessary, and critical solder joints are reinforced. Switches, potentiometers, and connectors are cleaned and treated for quiet, reliable operation. The tuner is checked and aligned for accurate, stable reception, and the amplifier is calibrated for proper bias and channel balance.
Once the technical restoration is complete, the faceplates, knobs, and chassis are carefully cleaned and detailed to preserve the units’ original appearance while respecting the authentic character of vintage equipment.
After Restoration
After restoration is complete, the three units are tested together as a complete system under real operating conditions.
All inputs and outputs, tone controls, filters, tuning across the full FM and AM bands, stereo separation, channel balance, and the 140’s peak indicators are thoroughly verified to ensure each unit performs as originally designed.
Finally, the stack undergoes several hours of continuous listening tests in a complete vintage audio system to evaluate sound quality, long-term stability, and real-world performance. Only after meeting HQaudios’ inspection and performance standards is this set approved and prepared for its next owner.
Specifications
Marantz Model 140 – Stereo Power Amplifier
| Specification | Details |
|---|---|
| Power Output | 80W + 80W (8Ω) • 100W + 100W (4Ω), both channels driven |
| Total Harmonic Distortion | 0.1% or less (20Hz – 20kHz) |
| Frequency Response | 20Hz – 20kHz ±0.1dB |
| Damping Factor | 45 or more (8Ω) |
| Features | Independent L/R peak indicators with clipping warning lights |
| Dimensions / Weight | Approx. 14.2 × 4.7 × 10.7 in (360 × 120 × 273 mm) • 24.3 lbs (11 kg) |
Marantz Model 3200 – Stereo Control Console Pre-Amplifier
| Specification | Details |
|---|---|
| Output Voltage | 1.5V rms (10V max) |
| Total Harmonic Distortion | 0.1% or less (20Hz – 20kHz) |
| Frequency Response | 20Hz – 20kHz ±0.25dB |
| Phono Input | 1.8mV / 47kΩ |
| Tone Controls | Bass ±10dB • Mid ±7dB • Treble ±10dB, plus low filter |
| Dimensions / Weight | Approx. 14.2 × 4.7 × 11 in (360 × 120 × 280 mm) • 11.7 lbs (5.3 kg) |
Marantz Model 112 – AM/FM Stereophonic Tuner
| Specification | Details |
|---|---|
| FM Sensitivity | 1.7μV, MOS-FET front end |
| FM Signal-to-Noise | Mono 70dB • Stereo 60dB |
| FM Distortion | Mono 0.15% • Stereo 0.3% |
| Capture Ratio / Selectivity | 1.6dB / 60dB (IHF) |
| Stereo Separation | 42dB (1kHz) |
| Dimensions / Weight | Approx. 14.2 × 4.7 × 11 in (360 × 120 × 280 mm) • 14.1 lbs (6.4 kg) |
What Is Included
- Marantz Model 140 Stereo Power Amplifier
- Marantz Model 3200 Stereo Control Console Pre-Amplifier
- Marantz Model 112 AM/FM Stereophonic Tuner
Please note: the units are sold without wood cases. Only the items clearly shown in the photos or specifically listed in the description are included.
Video Test & Sound Demo
We understand that purchasing vintage audio equipment online requires confidence.
If you would like to see this Marantz stack in operation before purchasing, please contact us through our website. Whenever available, we are happy to provide additional photos, close-up images, operational videos, or sound demonstrations.
You are also welcome to visit the HQaudios YouTube channel to explore restoration projects, product demonstrations, and listening sessions featuring professionally restored vintage audio equipment.
Suggested Pairing
This Marantz stack pairs beautifully with classic speakers and sources from the same era. To complete the system, HQaudios recommends:
West Coast Classic
Speakers: JBL L100 Century
Punchy, dynamic, and iconic — the definitive 1970s pairing.
Studio Reference
Speakers: Yamaha NS-1000M
Highly detailed and accurate for critical listening.
British Warmth
Speakers: Tannoy Berkeley
Smooth and refined for jazz, vocals, and acoustic music.
Analog Source
Turntable: Thorens TD-160 or Technics SL-1700
A perfect match for the 3200’s excellent phono stage.
For the best performance, HQaudios recommends pairing this stack with professionally restored vintage speakers and sources. Proper system matching allows the set to deliver the warm, dynamic, and highly musical character that has made 1970s Marantz a favorite among audiophiles and collectors for decades.
Trade-In Program
Do you have vintage audio equipment you’d like to trade in?
HQaudios welcomes trade-ins on receivers, amplifiers, speakers, cassette decks, reel-to-reel decks, turntables, and other classic audio components.
Simply send us photos and basic information about your equipment. Our team will gladly review your items and discuss available trade-in options.
Build Your Vintage System
This stack already covers amplification, control, and FM/AM radio — all it needs is speakers and a source.
HQaudios offers professionally restored vintage speakers, turntables, cassette decks, and reel-to-reel machines that pair beautifully with this set. If you’re planning to purchase multiple components, ask us about available package pricing and complete system recommendations tailored to your listening preferences.
Shipping & Packaging
This set ships free of charge. Vintage separates are heavy and delicate, so each of the three units is professionally packed with strong protection to help ensure safe delivery.
- Each unit individually wrapped and cushioned.
- Faceplates, knobs, corners, and rear panels protected.
- Strong boxing and internal cushioning.
- Tracking information provided after shipment.
For very heavy or fragile shipments, local pickup may also be available by appointment.
1-Year HQaudios Warranty
All three units in this set are backed by our 1-Year HQaudios Warranty, covering proper electronic and functional operation under normal home use.
Our goal is to provide a confident and comfortable buying experience. If you have any questions after receiving your items, please contact us first through our website. We are here to help.
Warranty does not cover misuse, physical damage, unauthorized repair, damage caused by incorrect voltage, or shipping damage after delivery.
Important Note for Buyers
Vintage separates are precision electronic devices. They require proper setup, adequate ventilation, and careful handling.
We do our best to describe each unit clearly and provide detailed photos so you can buy with confidence. Please review all photos, read the full description, and contact us with any questions before purchase.
HQaudios – Vintage Audio Restored with Care.
Professionally Restored • Fully Tested • Carefully Packed • 1-Year Warranty
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