MA2375 2-Channel Vacuum Tube Integrated Amplifier

McIntosh Labs

MA2375 2-Channel Vacuum Tube Integrated Amplifier

Name: MA2375 2-Channel Vacuum Tube Integrated Amplifier
Brand: McIntosh Labs
SKU: MA2375
Price: 21500.0 CAD
Availability: InStock

SKU: MA2375

$21,500.00

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Processing/Shipping Time

All online orders are typically processed within 1-2 business days. Orders received after 1pm EST or on weekends will be processed on the next business day.

Our business hours are Monday to Friday from 10am to 5pm EST.

Due to our inventory management practices, we do not maintain a large stock of products; instead, most items are sourced from our suppliers upon order. We do focus on having a broad selection of brands and models for in store demo purposes. This may impact shipping times, as items are procured and prepared for shipment as soon as possible. If your item is not in stock, we will send you an email to update you on the status of your order. We appreciate your understanding and patience.

Standard Delivery for in stock items is between 2-3 business days within Ontario & Quebec, 3-5 business days for Eastern Canada and 4-7 business days for Western Canada. Northern or remote Canadian customers should contact us to confirm shipping availability and costs. During peak sales periods (for example Black Friday, Cyber Monday and Boxing Day/Week) up to an additional 5 (five) business days may be needed.
Items not in stock will be shipped to our Newmarket store and then shipped to you. Turnaround time may depend on the manufacturer/distributor. If a manufacturer or distributor has stock of the item, then we can normally expect to receive the product within 10 business days at which point we will immediately ship it to you.
If we become aware that delivery time to you will exceed 16 business days we will contact you to confirm the order or review options.

Returns, Exchanges & warranty Claims

If your product is damaged, defective, or dead on arrival you are eligible for a refund or exchange within 15 days of the product being delivered to you.

If you are not satisfied with your purchase and would like to request an exchange, please note the following:

All returns and exchanges will only be accepted on products with no damage due to misuse and have all original packaging, accessories, manuals and the original sales receipt.
Refunds paid by credit card/PayPal will be returned in the same method payment was received when possible. Wire Transfer payments will be refunded in the form of company check or E-Transfer. For exchanges with a difference in value, the balance will be charged or refunded in the same method as the original payment was received.
Liptons Audio Video reserves the right to assess whether the product is defective or not. Products with physical damage will not be accepted for refund or exchange.
Exchanges will be offered only on non-special order items with return shipping at the buyer's expense and must be shipped with insurance reflecting the transaction value and must ship via a trackable courier/delivery company. Exchanges will only apply to unopened products received in new condition
Products with non matching serial numbers to either the packaging or the recorded Serial number associated with the transaction are not eligible for refunds or exchanges
Products with modified or missing serial numbers/UPC codes or other identifying information are not eligible for refunds or exchanges
Products that are not returned with all original packaging, equipment, accessories, manuals and software will not be refunded or will be charged a restocking fee at the discretion of Liptons Audio Video.
Products must be new and show no signs of use. Any sign of use – Including installation, scratches or other signs of use such as physical marking, painted grills, screw holes, cut wires or similar would not be returnable
Equipment sustaining damage from operation or misuse will be deferred to the manufacturer's warranty and replacement policies.
Replaced items will be exchanged for the same model
If a product you purchased from us proves to be defective within 15 days from purchase, we will replace it with an equivalent new unit at no charge. If the item is returned through shipping, the exchange will be processed once we receive the parcels & confirm that the product is not working. Exchange processing will take 10-20 business days from the day we receive the parcel.

Final Sale Items/Exclusions

Special order items including cut to length cabling and custom furniture
Headphones/earbuds/in-ear headphones for hygienic reasons
Turntable cartridges/styli
Projector lamps
Installed in-ceiling, in-wall speakers or subwoofers
No refunds or exchanges on products purchased for commercial use.
Clearance, consignment items.

Online Order Returns/Exchanges Process

Please contact us to begin our online return process at info@liptons.ca. Once we have received the details about your order, we will generate a Return Merchandise Authorization (RMA) number and send you the RMA form to be completed and sent back with the parcel.

Pack the item back in its original packaging with all parts, accessories and manuals. We recommend packing the item into an additional box meant for shipping. Return shipping costs are the responsibility of the customer. Any damages that incur during return shipping will also be the responsibility of the customer.

In the event the item was offered free shipping, the original shipping charges and handling fees, for the returned item(s), will be deducted from the refund. If the item is refused and returned to Liptons Audio Video without record of cause and evidence of damage any return freight costs will also be deducted from the refund.

In Store Returns & Exchanges

Returns on damaged, defective and DOA products, as well as exchanges can be made in store. Please note our store hours https://liptons.ca/pages/contact and be sure to bring your receipt or online order confirmation.

Product Warranty

All new products carry full manufacturer warranty which varies for each product category and manufacturer. Refer to the manufacturer’s warranty information for exact details.

Demo products come with either the full manufacturer warranty or the balance of manufacturer warranty unless otherwise specified.

Open Box products come with either the full manufacturer warranty or the balance of manufacturer warranty unless otherwise specified.

Used and Consignment pieces will have individually specified warranty. If no warranty is listed, no warranty is available, but the unit has been tested in store and determined to be working properly unless otherwise specified.

Installation Warranty

All Liptons Audio Video installations come with a one-year warranty against workmanship performed by us. Defective equipment covered under manufacturer warranty is subject to a removal and reinstallation charge of one hour at our current installation rates. Installation warranty claims can be made within one year of installation date by phone at 905-898-7133 or email at info@liptons.ca

If you have any questions or concerns regarding product returns, exchanges and warranty claims, please call is at 905-898-7133 or email info@liptons.ca

Type: Vacuum Tube
75 Watts x 2-Channels
Unity Coupled Circuit Output Transformers
Power Guard Screen Grid Sensor®, Sentry Monitor™, Solid Cinch™ speaker binding posts
6 analog inputs
Subwoofer output
5-band analog equalizer

Our first vacuum tube integrated amplifier in over a decade, the MA2375 Vacuum Tube Integrated Amplifier is a statement of uncompromising artistry. Crafted for the music purist but refined for the modern listener, the MA2375 invites you to rediscover your music with amazing clarity and beauty. Every detail, from its polished stainless-steel chassis to the warm glow of its tubes, reflects our legacy of excellence and timeless design.

PURE TUBE ARTISTRY

This all-analog masterpiece combines a vacuum tube preamplifier with a vacuum tube power amplifier in a single, elegantly designed unit. In the power amplifier section, four KT88 output tubes and four 12AT7 driver tubes deliver 75 watts per channel of effortless, low-distortion power. You will experience a rich, full-bodied sound through virtually any speakers thanks to our Unity Coupled Circuit Output Transformers. The vacuum tube preamplifier portion is powered by two 12AX7A and two 12AT7 preamp tubes.

ICONIC STYLING BLENDED WITH MODERN PERFORMANCE

The MA2375 effortlessly blends timeless McIntosh design with cutting-edge performance. Dual McIntosh blue watt meters, a polished stainless-steel chassis, and the signature glow of vacuum tubes create an aesthetic as captivating as the sound. A 5-band analog equalizer offers personalized tonal shaping, while the High Drive headphone amplifier with Headphone Crossfeed Director (HXD^®) adds dimensionality to private listening.

PRECISION MEETS PROTECTION

To protect the KT88 output vacuum tubes, our Power Guard Screen Grid Sensor^® (SGS) technology continuously monitors the current and adjusts the input signal in real-time to maintain optimal performance and tube integrity. If the current becomes too high, Power Guard SGS^® will dynamically attenuate the input signal to keep the vacuum tubes operating at safe levels. Combined with Sentry Monitor™ fuse-less short-circuit protection, the MA2375 is engineered for enduring reliability without compromise.

CONNECTION FLEXIBILITY

The MA2375 offers an array of analog inputs, including two balanced and three unbalanced connections, to connect music streamers with analog outputs, CD players, tuners, and D/A converters. Connecting a turntable is an easy task via the configurable phono input that can accommodate both Moving Coil and Moving Magnet cartridges. The phono stage includes adjustable Gain, Capacitance, Resistance Loading, and RIAA equalization for optimal vinyl playback. A subwoofer output enables the addition of a powered subwoofer to extend low-frequency performance.

Our gold-plated Solid Cinch™ speaker binding posts ensure a secure and corrosion-resistant connection for your speaker cables, while an unbalanced preamp output supports the addition of a second amplifier in advanced multi-zone audio systems.

EASY CONTROL AND INTEGRATION

Convenience features include Power Control, enabling synchronized power on/off for connected McIntosh components; Home Theater PassThru for seamless integration into a home theater system; and Data Ports to send remote control commands to connected source components. An RS232 port enables advanced control options with third-party systems, or the unit can be operated via the included remote control for ultimate ease of use.

ELEVATE EVERY NOTE

The MA2375 Vacuum Tube Integrated Amplifier redefines what’s possible in high-fidelity sound, inviting you to experience music in its purest form. Contact your McIntosh dealer to discover how the MA2375 can transform your listening space into a sanctuary of sound.

Power & Performance

Design: 2-Channel fully analog all-vacuum-tube integrated amplifier (Preamp and Power Amp)
Frequency Response (+0, -0.5 dB): 20 Hz – 20 kHz
Frequency Response (+0, -3.0 dB): 10 Hz – 50 kHz
Sensitivity (High Level Balanced / Unbalanced): 600mV / 300mV
Impedance (Speaker Taps): Separate dedicated binding posts for 4 Ohms, 8 Ohms, and 16 Ohms
Low Frequency Extension: 10 Hz (at -3 dB)
Maximum Input Power / Rated Output: 75 Watts per channel (Both channels driven)
Performance: The McIntosh MA2375 is a monumental all-analog achievement, standing proudly as McIntosh's first pure vacuum tube integrated amplifier in over a decade. Rather than employing a hybrid blueprint, this single-chassis masterpiece pairs a full tube preamplifier stage with a heavy-duty tube power section. Utilizing McIntosh's legendary Unity Coupled Circuit Output Transformers, it guarantees its full 75 watts of warm, low-distortion current is delivered evenly across 4, 8, or 16-ohm loads. Handcrafted for the analog purist, it creates an deeply holographic, rich, and fluid soundstage with incredible micro-detail retrieval, effortlessly driving premium high-efficiency towers and high-end bookshelf setups alike.

Audio Features & Drivers

12-Vacuum-Tube Processing Complement: The analog signal path relies entirely on a massive array of twelve hand-matched vacuum tubes—incorporating four KT88 output tubes, four 12AT7 driver tubes, two 12AX7A preamplifier tubes, and two 12AT7 preamplifier tubes.
Patented Unity Coupled Circuit Transformers: Unlike traditional output transformers, this proprietary McIntosh layout transfers power via both the cathodes and plates of the KT88 output tubes, extending power bandwidth while dramatically lowering total harmonic distortion ($0.5\%$ maximum).
Power Guard Screen Grid Sensor® (SGS): A specialized real-time safety network built explicitly for tube grids. It continuously parses the active current of the KT88 output tubes, dynamically mitigating the input signal to prevent clipping and protect tube longevity without compressing overall audio dynamics.
Sentry Monitor™ Fuse-less Protection: An active short-circuit monitoring safety array that instantly disconnects the output stage if a speaker line impedance cross or structural fault occurs, automatically resetting once thermal metrics fall back to normal parameters.
5-Band Precision Analog Equalizer: Features five tactile front-panel tone adjustment knobs centered at key musical frequency nodes, allowing listeners to manually correct for acoustic room anomalies or thin vinyl masters. Includes a complete physical hard-bypass switch.
High Drive Headphone Amp with HXD®: Incorporates a dedicated, high-current 1/4-inch headphone output stage utilizing Headphone Crossfeed Director (HXD®) circuitry to restore spatial depth and speaker-like imaging inside a private head-fi soundstage.

Streaming & Connectivity

Patented Solid Cinch™ Speaker Binding Posts: Outfitted with heavy, gold-plated custom solid brass speaker terminals that easily lock down high-gauge bare wire, spades, or banana plugs with continuous compression to prevent corrosion or loosening over time.
Configurable Reference All-Analog Phono Stage: Features a single universal phono input input screen that can be digitally tailored from the setup panel to serve high-end Moving Coil (MC) or standard Moving Magnet (MM) turntable cartridges. Includes fine-grained adjustments for Gain, Capacitance, Resistance Loading, and precise RIAA equalization curves.
Pure Analog Line-Level Matrix: Equipped with two pairs of studio-grade balanced XLR inputs and three pairs of premium unbalanced RCA inputs, designed to interface cleanly with reference external DACs, high-resolution streamers, and CD players.
Preamp Variable & Subwoofer Output Arrays: Includes an unbalanced variable preamp output layout for bi-amping routines alongside a dedicated mono subwoofer output jack, allowing users to route low-octave data straight into active sub-bass units.

Comfort & Dimensions

Iconic Polished Stainless-Steel Architecture: Built over an inverted, mirror-polished dual-layer stainless steel chassis, beautifully highlighting the raw visual warmth of the glowing tube array and ceramic tube sockets.
Dual Blue Glass Watt Meters: Features McIntosh's signature dual-needle blue illumination output meters, calibrated to respond with lightning accuracy to display real-time output wattage levels relative to speaker taps.
Home Theater PassThru Geometry: Integrated seamlessly with a hard-wired bypass relay, allowing home theater multi-channel AV processors to take absolute master volume control of the front left/right channels during cinema operations.
Overall Dimensions: 17-13/16” (45.2cm) Width x 9-15/16” (25.2cm) Height x 20-7/16” (51.9cm) Depth.
Unit Weight: 93 lbs (42.2 kg) — A massive, incredibly dense single-chassis physical load owing to the huge iron cores inside the dual Unity Coupled output transformers and heavy-gauge steel casing.
Advanced Multi-Component Control Bus: Rear panel includes two dedicated Data Ports, a Power Control 12V trigger sync terminal, an external IR sensor input, and a serial RS232 port to easily anchor into luxury home automation networks like Crestron or Control4.

Design & Build

Dual-Layer Mechanical Isolation: Fabricated with a heavy-duty partitioned interior bulkhead that isolates the high-voltage power regulation sections completely away from the ultra-sensitive preamplifier tube grids.
Gold-Plated Solid Brass RCA Inputs: Every single RCA port is machined from premium solid brass blocks with heavy gold-plating, maximizing signal conductivity while eliminating inputs picking up external RF and EMI hum fields.
All-Analog Architecture Commitment: Free of any internal digital clocks, digital-to-analog converters, or wireless reception chips, ensuring the unit remains permanently immune to digital obsolescence or processor clock bleed.
Proudly Built in Binghamton, New York: Meticulously engineered, hand-assembled, and torture-tested under rigorous zero-tolerance quality baselines at McIntosh’s historic factory facility in upstate New York.

3 Years Limited Manufacturer Warranty

Scope and Duration of Warranty

Subject to the terms and conditions stated below, McIntosh Laboratory, Inc. (“McIntosh”) warrants to the original owner that this Product shall be free from defects in workmanship or materials for a term of three (3) years from the date when it was purchased from an Authorized McIntosh Dealer. Provided, however, that rather than the three (3) years of coverage afforded the Product generally, where applicable, vacuum tubes contained in our Products are warranted for 90 days from the date of purchase, hard disc drives and projector lamps contained in our Products are warranted for one (1) year from the date of purchase. Provided, further, that where required by state law applicable at the time of purchase, instead of commencing on the date of purchase the foregoing warranties shall commence on the date specified in such law.