Vacuum tube hybrid integrated amplifier. Macintosh's first hybrid integrated amplifier.A new approach that realizes high sound quality by combining a vacuum tube and a solid state circuit and wearing a novel visual design. The preamplifier section consists of 12AX7a x 2 and 12AT7 x 2 vacuum tube circuits, and the vacuum tubes are housed in a stylish protective cage. The output stage is a direct-coupled solid-state design. 100W + 100W (8), 160W + 160W (4) maximum output. We adopt Macintosh monogram heatsink (McIntosh Monogrammed Heatsinks) of new design which treated "Mc" logo which improved heat dissipation efficiency.
We adopt Macintosh original technology and function (power guard, sentry monitor, pass-through, HXD headphone output, power control). Bass (low range) and Treble (high range) Each has a tone control that can be adjusted in the range of -10dB to + 10dB.Equipped with phono input for MM cartridge. Achieves an extremely flat frequency response and minimizes noise and distortion by adopting resistors and capacitors with less error.
The traditional Macintosh mirror-finished stainless steel chassis and aluminum die-cast product name badges on both sides match the Macintosh system comfortably. Frequency characteristics: + 0, -0.5dB (20Hz-20kHz), + 0, -3dB (10Hz-100kHz).
Harmonic distortion: 0.03% max. Dynamic headroom: 1.8 dB. Input sensitivity: 3.0mV (Phono MM), 300mV (unbalanced), 600mV (balanced). SN ratio: 80dB (Phono MM), 97dB (High Level).
Input impedance: 20k (balanced / unbalanced), 47k / 50pF (Phono). Analog input terminal: High Level input: 2 lines (unbalanced), 1 line (balanced), Phono (MM): 1 line (unbalanced). Output terminal: Headphone output: 1 line, SUB (Mono): 1 line (unbalanced). Tone control: -10dB to + 10dB (Bass / Treble).
Control: Power control, data port. Speaker output terminal: 1 system binding post. Power supply: 100V 50 / 60Hz. External dimensions: W305 x H194 (including legs) x D419mm (including protrusions). We are located in Japan.It's our pleasure to make you happy by proposing our recommend item. If you have any questions or request about items, please feel free to ask us. International Buyers - Please Note. These charges are the buyers responsibility. We do not mark merchandise values below value or mark items as gifts - US and International government regulations prohibit such behavior. The item "Macintosh Vacuum tube hybrid integrated amplifier McIntosh MA252" is in sale since Friday, May 15, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets". The seller is "358rc_av_japn" and is located in tottori-city. This item can be shipped worldwide.