{"product_id":"phasemation-ma-5000-statement-monoblock-power-amplifier-pair","title":"Phasemation MA-5000 Statement Monoblock Power Amplifier (pair)","description":"\u003ch1\u003ePhasemation MA-5000 Vacuum Tube Monaural Power Amplifier\u003c\/h1\u003e\n\u003ch3\u003eWE-211 parallel single pure class-A monaural tube power amplifier with WE-300B driver stage, Lundahl transformers, and transformer-type balanced attenuator\u003c\/h3\u003e\n\u003cp\u003eThe Phasemation MA-5000 is a built-to-order vacuum tube monaural power amplifier created to deliver the highest-quality sound from a 211-based design. Using a parallel single-output stage built around highly regarded PSVANE WE-211 tubes, the MA-5000 is engineered to draw out both the realism of recorded music and the emotional intent of the performer. A rigid 10 mm aluminum chassis, TAOC cast-iron insulators, and a distinctive front glass tube cover decorated with traditional Japanese cloisonné underline its role as a true flagship component.\u003c\/p\u003e\n\u003cp\u003eAt the heart of the MA-5000 is an all-triode, non-feedback circuit built around an ECC803 input stage feeding a PSVANE WE-300B driver, which in turn drives the WE-211 output tubes via a Lundahl interstage transformer. Each WE-211 has its own separate fixed-bias supply, with operating points set and monitored via direct meter readings for optimal stability. A specially designed Lundahl output transformer is optimized for 4 Ω–8 Ω speaker loads, while a dual power-transformer supply, double-choke high-voltage rectification using two 5R4G tubes, and fully DC-heated filaments all contribute to low noise and clean, dynamic power delivery. Recognition from Stereo Sound, Audio Accessory, Analog, and Stereo magazines confirms its status among reference-level amplifiers.\u003c\/p\u003e\n\u003cp\u003eFor system integration, the MA-5000 offers both balanced and unbalanced inputs, feeding a transformer-type attenuator that also acts as a balanced-to-unbalanced converter. Standard gain can be reduced by -3 dB, -6 dB, or -10 dB, with an input OFF position providing effective mute for safe cable changes or system adjustments. A one-minute power-on timer with dual-color LED (red during warm-up, blue in operation) ensures gentle start-up for the tubes, while Furutech audio-grade speaker terminals with torque limiters maintain secure, low-resistance connections to your loudspeakers.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eType:\u003c\/b\u003e WE-211 parallel single monaural power amplifier\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRated Output:\u003c\/b\u003e 45 W (THD 5%)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFrequency Response:\u003c\/b\u003e 10 Hz–40 kHz (+0, -3 dB)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInput Impedance:\u003c\/b\u003e 47 kΩ\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eGain:\u003c\/b\u003e 30 dB\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eResidual Noise:\u003c\/b\u003e 200 μV or less (A-NET)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOutput Impedance:\u003c\/b\u003e 4–8 Ω\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower Consumption:\u003c\/b\u003e 350 W\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAccessories:\u003c\/b\u003e AC power cable, screwdriver for trimmer adjustments\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDimensions (WHD):\u003c\/b\u003e 14.57\" x 13.62\" x 25.04\" (370 x 346 x 636 mm)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e 110.23 lb. (50 kg)\u003c\/p\u003e","brand":"Phasemation","offers":[{"title":"Default Title","offer_id":52351140462776,"sku":"MA-5000","price":159975.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/MA-5000_front.png?v=1765414216","url":"https:\/\/upscaleaudio.pro\/products\/phasemation-ma-5000-statement-monoblock-power-amplifier-pair","provider":"Upscale Audio","version":"1.0","type":"link"}