Marantz Model 600 Pair Of Vintage Speakers – Professionally Restored – 1-Year Warranty

Professionally Restored by HQaudios – Backed by Our 1-Year Warranty.

Overview

This listing is for one matching pair of Marantz Model 600 vintage floorstanding speakers, professionally inspected, serviced, restored, and tested by HQaudios.

The Model 600 is a large-format Marantz loudspeaker designed around a four-driver arrangement. Each cabinet uses a large woofer, a dedicated cone midrange, a high-frequency driver, and a super tweeter to provide broad frequency coverage and a spacious stereo presentation.

This pair was evaluated using a documented HQaudios inspection sheet. Each driver section was checked individually, electrical resistance was measured, crossover operation was reviewed, and both speakers were tested with audio signals before and after service.

The original inspection identified deterioration around the woofer surrounds, age-related wear on the wooden cabinets, and cosmetic work required on the grille and exterior surfaces. The midrange and high-frequency sections were confirmed operational during inspection.

Following restoration, both speakers were checked for balanced output, proper driver operation, clean reproduction, and consistent performance between the left and right cabinets.

Key Highlights

• Matching pair of vintage Marantz Model 600 floorstanding speakers
• Four-driver, multi-way loudspeaker design
• Large 10-inch woofer in each cabinet
• Dedicated cone midrange driver
• High-frequency driver and super tweeter
• Driver resistance measurements completed
• Midrange and treble sections confirmed operational during inspection
• Woofer surround condition addressed during restoration
• Crossover networks and internal connections inspected
• Wooden cabinets cleaned and refinished
• Grille fabric restored or replaced
• Final stereo listening and channel-balance testing completed
• Tamper seals applied after final testing
• Backed by our 1-Year HQaudios Warranty

Basic Specifications

Specification Note: Specifications are approximate and may vary slightly by production version. Please refer to the rear labels, installed drivers, and product photos for the exact configuration of this pair.

Sound Character

The Marantz Model 600 delivers a warm, full-bodied, and spacious presentation suited to classic home hi-fi listening.

The woofer provides solid low-frequency weight and satisfying midbass presence. The dedicated midrange helps vocals and instruments retain natural body, while the separate high-frequency and super-tweeter sections add clarity, air, and wider dispersion.

When positioned carefully, the pair can produce a broad stereo image with strong scale and an engaging room-filling presentation.

The adjustable level controls allow the midrange and high-frequency balance to be tailored to the room, amplifier, and listening preference.

HQaudios Restoration & Testing Process

Before Restoration

• Both speakers were inspected for cabinet, grille, terminal, control, and driver condition.
• Each woofer, midrange driver, high-frequency driver, and super tweeter was checked individually.
• Electrical resistance was measured across the driver sections for both speaker A and speaker B.
• The inspection identified deterioration around the woofer surrounds.
• The midrange drivers were confirmed operational during the initial inspection.
• The high-frequency and super-tweeter sections were confirmed operational during the initial inspection.
• Both crossover networks were checked for continuity and signal distribution.
• Midrange and high-frequency level controls were inspected.
• Speaker terminals, internal wiring, and driver connections were checked.
• Wooden cabinet surfaces were inspected for scratches, finish wear, and other age-related cosmetic issues.
• Grille condition and fabric appearance were evaluated.
• Both speakers were tested with an audio signal to identify imbalance, distortion, rubbing, intermittent output, or inactive drivers.
• All initial findings were recorded on the HQaudios product inspection sheet.

During Restoration

• The woofer surround condition was addressed to restore proper cone control and reliable operation.
• All woofers, midrange drivers, high-frequency drivers, and super tweeters were tested individually.
• Driver resistance and continuity were checked again during service.
• Internal driver connections and wiring were inspected, cleaned, and secured.
• Both crossover networks were inspected for proper signal routing.
• Signal distribution to each driver section was verified.
• Midrange and high-frequency level controls were cleaned and checked.
• Speaker terminals and electrical contact areas were cleaned.
• Internal cabinet areas were cleaned to remove accumulated dust and debris.
• Driver mounting points and cabinet structures were inspected.
• Wooden cabinet surfaces were cleaned and refinished while preserving the original color character.
• Age-related cabinet scratches and surface wear were treated where appropriate.
• Grille frames were inspected and the grille fabric was restored or replaced.
• Exterior trim and visible surfaces were cleaned and detailed.
• The original acoustic layout and structural design were preserved throughout the restoration.

After Restoration

• Every driver section was tested again after service.
• Both woofers were checked for clean movement, stable output, and freedom from rubbing or abnormal noise.
• Both midrange sections were verified for clear and consistent reproduction.
• High-frequency drivers and super tweeters were checked for proper output.
• Crossover operation and signal distribution were confirmed.
• Midrange and high-frequency controls were tested through their operating range.
• Left and right speakers were compared for channel balance.
• Bass, midrange, treble, and super-tweeter output were evaluated using music and test signals.
• Both speakers were checked for distortion, intermittent output, rubbing, or unwanted noise.
• Terminal connections were tested under normal operating conditions.
• Extended stereo listening tests were completed.
• The pair was confirmed to deliver clean, balanced, and stable sound.
• Tamper seals were applied after final inspection.
• The speakers passed HQaudios final quality control and are prepared for regular home listening.

Cosmetic Condition

This pair is in Excellent restored vintage cosmetic condition.

The wooden cabinets have been cleaned and refinished while retaining their original color character. Age-related scratches and surface wear identified during inspection were treated where appropriate.

The grille frames were inspected and the grille fabric was restored or replaced to improve the overall presentation.

Minor marks, veneer variations, trim wear, small scratches, or other vintage imperfections may remain under close inspection. Please review all photos carefully.

What Is Included

• One matching pair of Marantz Model 600 floorstanding speakers
• Installed grille fabric
• Installed driver assemblies and crossover networks

Amplifiers, receivers, speaker cables, stands, decorative items, test equipment, and other audio components shown in the photos are not included unless specifically stated.

Suggested Pairing

Marantz 2230 System

Receiver: Marantz 2230

The smooth and warm presentation of the 2230 complements the Model 600’s full midrange and relaxed vintage balance.

Marantz 2245 System

Receiver: Marantz 2245

The 2245 provides additional headroom and stronger woofer control while retaining the musical tonal character associated with classic Marantz receivers.

Marantz 2270 System

Receiver: Marantz 2270

The 2270 offers greater dynamic authority and bass control for classic rock, blues, orchestral recordings, and medium-to-large rooms.

Marantz 2325 System

Receiver: Marantz 2325

The 2325 provides substantial power and control for listeners seeking greater scale and dynamic impact.

Sansui System

Integrated Amplifier: Sansui AU-717 or AU-919

Sansui amplification can provide firm bass control, strong dynamics, and a rich tonal balance while preserving the Marantz speaker’s warm presentation.

McIntosh System

Preamplifier: McIntosh C26 or C28

Power Amplifier: McIntosh MC2105 or MC2205

This system can provide excellent control, smoothness, and a spacious stereo image, particularly in medium-to-large rooms.

Trade-In Welcome

HQaudios may accept vintage receivers, amplifiers, speakers, cassette decks, reel-to-reel decks, turntables, and other classic audio equipment as trade-ins.

Please provide clear photos, model information, operating condition, cosmetic condition, and any known service history for evaluation.

Combo Discount

Save $100 when purchasing this pair together with an eligible restored vintage audio component from HQaudios.

Video Test Available

A video demonstrating both speakers, individual driver operation, level-control response, channel balance, and general sound performance can be provided upon request.

Additional photos of the drivers, grilles, cabinets, terminals, rear labels, and inspection documentation may also be available.

Shipping

Each speaker will be packed separately using protection appropriate for a large and heavy floorstanding loudspeaker.

• Protective nylon or surface wrapping
• Sealed inner protection
• Custom EPE foam corner guards
• Dense internal cushioning
• Reinforced double-wall outer cartons
• Additional grille and cabinet-edge protection
• Plastic strapping and handling labels
• Tracking and insurance where available

Local pickup is available by appointment in Garden Grove, California.

1-Year HQaudios Warranty

This pair is backed by our 1-Year HQaudios Warranty covering proper electronic and functional operation under normal home use.

The warranty does not cover misuse, excessive volume, amplifier clipping, incorrect wiring, physical or cosmetic damage, unstable amplification, unauthorized repair, moisture, heat, impact, or normal cosmetic aging.

Please contact HQaudios for technical support before arranging a return or repair.

Returns & Buyer Support

HQaudios provides support for amplifier matching, speaker wiring, placement, level-control adjustment, and basic troubleshooting.

Please contact us first if assistance is required after delivery. The speakers must not be opened, modified, or repaired by an unauthorized technician during the warranty period.

Important Vintage Audio Note

These are vintage loudspeakers produced around 1980. Minor cosmetic signs of age should be expected.

The speakers are large and heavy. Two-person handling is recommended when unpacking, positioning, or moving them.

Always switch the amplifier off before connecting or disconnecting speaker cables. Confirm correct polarity and use a stable amplifier designed for an 8-ohm load.

Why Buy From HQaudios?

• Professionally restored vintage speakers
• Documented HQaudios inspection sheet
• All four driver sections inspected and tested
• Driver resistance measurements completed
• Woofer surround condition addressed
• Crossover networks and level controls checked
• Cabinets cleaned and refinished
• Grille fabric restored or replaced
• Internal and external cleaning completed
• Final stereo listening and channel-balance testing completed
• Tamper seals installed after final inspection
• Technical support before and after purchase
• Trade-in options for eligible vintage equipment
• Backed by our 1-Year HQaudios Warranty

HQaudios – Vintage Audio Restored with Care.

Professionally Restored – Carefully Packed – 1-Year Warranty.