ALTEC 606 Pair of Speaker Cabinets Custom – 10-Year Warranty

Custom-Made by HQaudios – Backed by Our 10-Year Warranty.

Overview

This listing is for one custom-made matching pair of wooden speaker cabinets inspired by the classic ALTEC 606A enclosure design. These are newly manufactured empty enclosures intended for vintage audio restoration, replacement-cabinet projects, and custom high-efficiency speaker systems.

Each cabinet is manufactured from 18 mm (0.71″) full-birch plywood and follows a defined cabinet specification measuring approximately 36.06″ wide × 35.98″ high × 24.45″ deep. The front baffle is prepared with a 13.39″ diameter driver opening and a rear-mounted driver configuration using eight threaded mounting points.

The exterior is finished with real walnut veneer and a brown PU protective finish, while a cream/light-beige grille cloth maintains the warm visual character associated with classic large-format vintage speaker systems.

This listing is for the wooden cabinets only. Drivers, horns, crossovers, wiring, terminals, amplifiers, and other audio equipment are not included unless specifically stated.

Key Highlights

• Custom-made matching pair of ALTEC 606A-style wooden enclosures
• Large-format 36.06″ × 35.98″ × 24.45″ cabinet dimensions
• 18 mm (0.71″) full-birch plywood construction for strength and structural rigidity
• 13.39″ diameter driver opening prepared in the front baffle
• Rear-mounted driver configuration with eight threaded mounting points
• M6 × P1.0 mounting hardware with 20 mm (0.79″) fastener length
• Real walnut veneer exterior
• Brown PU protective finish
• Cream / light-beige grille cloth
• Reinforced plywood cabinet construction
• Controlled manufacturing tolerances
• 10-Year HQaudios Warranty against manufacturing defects

Basic Specifications

Dimensions & Mounting Details

Each cabinet measures approximately 36.06″ wide × 35.98″ high × 24.45″ deep. The front baffle incorporates a 13.39″ diameter circular driver opening for the intended large-format driver installation.

The driver is installed from the rear of the baffle and secured through eight threaded mounting locations. The mounting system uses M6 × P1.0 fasteners with a specified length of 20 mm (0.79″).

The cabinet also incorporates a rectangular vent opening measuring approximately 11.02″ × 2.52″ as part of the enclosure layout.

Manufacturing tolerances are controlled according to feature size, including ±0.2 mm (±0.008″) for mounting-hole locations, ±0.5 mm (±0.020″) for dimensions from 100–200 mm (3.94″–7.87″), ±1.5 mm (±0.059″) for dimensions from 200–700 mm (7.87″–27.56″), and ±3 mm (±0.118″) for dimensions above 700 mm (27.56″).

Construction & Finish

Each cabinet is built from 18 mm (0.71″) full-birch plywood selected for rigidity, strength, and long-term structural stability. Internal structural members support the large cabinet panels and provide a stable mounting platform for the driver and enclosure components.

Titebond wood adhesive is used during cabinet assembly to create strong bonded joints throughout the enclosure structure.

The exterior is finished in real walnut veneer, providing the natural grain and warm appearance associated with classic vintage loudspeaker cabinetry. A brown PU finish protects the exterior surface while preserving the appearance of the wood.

The front presentation is completed with cream / light-beige grille cloth mounted to a plywood grille frame, complementing the cabinet’s classic vintage styling.

Acoustic Design

The enclosure follows the large-format ALTEC 606A-style bass-reflex concept. Its substantial cabinet structure provides a rigid foundation for compatible high-efficiency speaker components while the front vent forms part of the bass-reflex enclosure layout.

Final bass response, efficiency, frequency balance, and overall sound quality depend on the installed driver, crossover network, cabinet sealing, damping, port configuration, amplifier, and room placement.

Because this listing is for an empty cabinet, impedance, sensitivity, power handling, and frequency response are determined by the components used to complete the speaker system rather than by the cabinet alone.

Compatibility

These cabinets are designed around an ALTEC 606A-style enclosure layout. The standard front baffle uses a 13.39″ diameter driver cutout with a rear-mounted, eight-point mounting arrangement.

Compatibility must be confirmed using the actual dimensions of the driver and other components being installed. The ALTEC 606A reference alone does not guarantee that every ALTEC driver or reproduction component will fit without modification.

Before ordering for an existing speaker system, please confirm:

• Exact driver model
• Driver frame diameter
• Required cutout diameter
• Mounting depth
• Eight-hole mounting pattern compatibility
• Crossover dimensions and mounting requirements
• Terminal and wiring requirements
• Any additional grille or front-panel requirements

Custom Configuration

The standard cabinet configuration follows the dimensions and construction specifications listed above.

Because these cabinets are custom manufactured, selected details may be reviewed before production if a buyer requires a different component arrangement. This may include driver mounting, terminal location, crossover placement, internal damping, grille preparation, or finishing details.

Any requested modification must be confirmed before cutting, drilling, veneering, or finishing begins.

Cosmetic Condition

These are newly manufactured wooden speaker cabinets.

Natural differences in walnut grain, veneer pattern, color tone, and surface character are expected because genuine wood veneer varies from one sheet to another. These natural variations are not considered manufacturing defects.

Actual color may also vary slightly due to lighting, photography, screen settings, and the natural appearance of the veneer.

What Is Included

• One matching pair of custom-made ALTEC 606A-style wooden speaker cabinets

The following audio components are not included unless specifically shown and stated in the listing:

• Woofers, Duplex drivers, compression drivers, or horns
• Crossovers
• Amplifiers or receivers
• Other audio equipment

Any completed speakers or audio equipment appearing in demonstration photos are for system visualization unless specifically identified as included.

Installation Requirements

Professional installation is recommended when completing the speaker system.

The driver is designed to mount from behind the front baffle using the prepared M6 mounting system. Correct driver positioning, fastener installation, crossover installation, wiring, sealing, damping, and final acoustic setup should be completed carefully to protect both the cabinet and installed components.

Improper drilling, cutting, mounting, wiring, or incompatible component selection may damage the cabinet or affect the performance of the completed speaker system.

Measurements & Order Confirmation

The standard cabinet measures 36.06″ W × 35.98″ H × 24.45″ D and uses a 13.39″ diameter driver opening with an eight-point rear-mounting arrangement.

The driver mounting hardware uses M6 × P1.0 fasteners measuring 20 mm (0.79″) in length. Manufacturing tolerances include ±0.2 mm (±0.008″) for mounting-hole locations, with dimensional tolerances varying according to feature size.

Customers purchasing these cabinets for an existing driver should compare the driver’s frame diameter, cutout requirement, mounting-hole pattern, and mounting depth with the cabinet specifications before placing an order.

Any requested dimensional or component-layout changes must be confirmed before production.

Trade-In Welcome

HQaudios may consider selected vintage audio equipment for trade-in, including receivers, amplifiers, speakers, turntables, cassette decks, and reel-to-reel machines. Please provide clear photos, model information, and a brief condition description for review.

Shipping

These large-format cabinets will be carefully packed with protective wrapping, reinforced corner protection, dense cushioning, and heavy-duty packaging to protect the veneer, edges, and cabinet structure during transit.

Because of their size, freight shipping may be used depending on destination. Shipping method, cost, and availability should be confirmed before purchase.

10-Year HQaudios Warranty

These custom-made wooden cabinets are backed by our 10-Year HQaudios Warranty against manufacturing defects under normal indoor use.

The warranty does not cover incorrect installation, improper cutting or drilling, incompatible components, unauthorized modification, moisture or water damage, excessive heat, prolonged direct sunlight, impact damage, improper transportation after delivery, normal wood-grain variation, or acoustic results caused by customer-selected components and system configuration.

Returns & Buyer Support

Please confirm driver compatibility and any requested custom specifications before production begins. Custom-made or modified cabinets may be subject to different return conditions.

Please contact HQaudios with questions about measurements, compatibility, finish selection, installation, shipping, or warranty support before purchasing.

Important Custom Product Note

These are newly manufactured ALTEC 606A-style replacement cabinets. They are not original vintage ALTEC factory cabinets unless explicitly stated.

The ALTEC name and 606A model reference are used to describe the historical design inspiration and intended application. Final system compatibility and acoustic performance depend on the actual drivers, crossover, wiring, damping, and components selected for the completed speaker system.

Why Buy From HQaudios?

• Custom products designed for vintage audio projects
• 18 mm (0.71″) full-birch plywood construction
• Real walnut veneer exterior
• Defined cabinet and driver-mounting dimensions
• Controlled manufacturing tolerances
• Reinforced cabinet construction
• Compatibility review before production
• Careful protective packaging
• Customer support before and after purchase
• 10-Year HQaudios Warranty

Custom-Made by HQaudios – Carefully Packed – Backed by Our 10-Year Limited Warranty.