McIntosh MHA200 Valve Headphone Amplifier (Ex-Demo)

A pair of 12AT7 and 12BH7A dual triode vacuum tubes power the compact MHA200. The 12AT7 vacuum tubes amplify the incoming audio signal while the 12BH7A tubes provide the power to drive the output to your headphones with low distortion. The MHA200 uses a pair of our Unity Coupled Circuit output transformers to deliver pristine audio to your ears. Our Unity Coupled Circuit is the same technology McIntosh was founded on in 1949 and is still used in our vaunted full-size home audio vacuum tube amplifiers such as the timeless MC275 and the more recent MC1502. Indeed, the MHA200 shares many physical design traits with the aforementioned vacuum tube amplifiers.

Technical Specifications:

• Headphone Power Output: 500mW
• Headphone Output Impedance: 32-100 Ohms / 100-250 Ohms / 250-600 Ohms / 600-1,000 Ohms
• Power Output per Channel: N/A
• Speaker Impedance: N/A
• Rated Power Band: 20Hz to 20kHz
• Total Harmonic Distortion: 0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz / <0.20% at 1W, 20Hz to 20,000Hz
• Intermodulation Distortion: 0.04% Typical / 0.4% Maximum
• Dynamic Headroom: 1.5dB
• Frequency Response: +0, -0.5dB from 20Hz to 20,000Hz
• Sensitivity (Unbalanced): 1.0 Vrms
• Sensitivity (Balanced): 2.0 Vrms
• Maximum Input Signal (Unbalanced): 8V
• Maximum Input Signal (Balanced): 16V
• Signal To Noise Ratio: 94dB
• Input Impedance (Balanced / Unbalanced): 20K/10K
• Damping Factor: >150
• Preamplifier Output: N/A
• Preamplifier Output Impedance: N/A
• Voltage Gain: 12dB at 32 Ohms / 17dB at 100 Ohms / 21dB at 250 Ohms / 25dB at 600 Ohms
• Power Guard: No
• Headphone Output: One pair of 3-pin balanced XLR connectors for dedicated Left and Right balanced output; One 4-pin balanced XLR connector for balanced stereo output; One 1/4" stereo headphone jack
• Balanced Input: 1
• Unbalanced Input: 1
• Digital AES/EBU Input: 0
• Digital Coaxial Input: 0
• Digital Optical Input: 0
• Digital MCT Input: 0
• Digital USB Input: 0
• Preamplifier Output: 0
• Digital AES/EDU Input Sample Rate: N/A
• Digital Coaxial Input Sample Rate: N/A
• Digital Optical Input Sample Rate: N/A
• Digital MCT Input Sample Rate: N/A
• Digital USB Input Sample Rate: N/A
• Tone Controls: No
• Power Control Input: 1
• Power Control Output: 1
• Output Meters: No
• Vacuum Tube or Solid State: Vacuum Tube
• Power Requirement: 120V 50/60Hz, 1.5A
• Standby Power Requirement: <0.5 Watts
• Output Type: Unity Coupled Output Transformer
• Unit Dimensions (W x H x D): 6-1/8" (15.6cm) x 5-3/4" (14.6cm) x 9-1/8" (23.2cm)
• Unit Weight: 10.5 lbs (4.8 kg)
• Shipping Weight: 12 lbs (5.5 kg)

We endeavour to despatch same day for orders placed up to 1pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is received. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK Orders

We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge. Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. Smaller items are delivered using Royal Mail 24 or special delivery. Larger items are delivered using a courier service such as DPD or UPS.

International Orders

Due to the nature of our products and brand restrictions we are only able to send certain items internationally. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties can apply for shipments to any countries outside of the UK depending on where the product you have bought is made. Customers are responsible for all taxes and duties incurred when the items enter their country.

Collect in Store or Home Install

At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock.