Darlington Labs MM6B: Discrete 68V J-FET RIAA MM Phono Preamp (+35 to +40dB)

Description: 40 Days Business Time for Handling --- temporary addition/change to listing as of 11/2/24 - see notes under website FAQ as to temporary reason - setting this high on eBay to give us flexibility - orders on our website will likely be prioritized upon shipping resuming in a couple weeks. Please note this as part of our listing---- BLACK FRONT PANEL IS EXCLUSIVE OPTION AT PRESENT TIME - (which is the opposite of before, not a misprint) KPR 11/2/24 see photos on our website FAQ page and in SHFM forum-----MM6B: Fully-Discrete, Zero Negative Feedback, Single-Ended Class-A High-Voltage Pure J-FET (Junction Field Effect Transistor) Phono PreamplifierWhy settle for underwhelming performance from the well-known names?Get *truly high class” sound with hand-built USA quality, from an engineering team with 50+ years experience.Zero Feedback, Single-Ended Class-A Gain Stages - No Op Amps (Integrated Circuits) and no Differential FET operation - for more natural sound, cleaner crescendos and minimal listening fatigueEnhanced Power Supply Regulation - Derived directly from the most elegant and technically sophisticated power supply ever utilized in a DLabs product (our MP8B). The MM6B shares the bulk of the power supply from the MP7B.High Headroom Passive RIAA equalizationHigh-Voltage J-FETs -Hand-matched with hand-tuned operating points deployed in a maximum-inherent-linearity configurationExtensive local decoupling networks provide deep, wide and immersive soundstagingMono Switch is available at extra costBlack or Silver Front Panel - your choice - no extra costLED Color is Blue on the MM6 (no other colors). But, you can adjust the brightness with an internal setting.Upgraded jacks available at extra cost - provide enhanced appearance together with increased reliability across multiple connection/disconnection cycles.Hand-soldered, assembled and calibrated by experienced US-paid craftsmenThrough-hole construction for electrolytic capacitors and other critical parts, conservatively rated, long life audiophile quality componentsListen 4 to 6dB louder without strain or fatigue than competitive products for greater perceived dynamics and musical immersionInvites comparison to products up to $1500 or more. DETAILED FEATURE LIST: Gain: +35dB, +37dB or +40dB (for use with most any MM, MI, and HOMC cartridge having an output level of 1.6mV or greater). Use an external Step-Up Transformer (SUT) or an Active Head Amp (like our SU-6 or SU-7) for an LOMC cartridge with less than 1.5mV output.Subsonic Filter (switchable): Flat, or 16Hz HPF at 6dB/octave or 12dB/octave.Resistive loading: 38K, 44K, 47K, 62K, 92K, 150K, 240K or 1Meg (these include settings optimized for use with external third-party SUTs (Step-Up Transformers).Variable capacitance: 0pF, 50pF, 100pF, 150pF, 200pF, 250pF, 300pF, or 350pFBalanced output capability (with user-supplied custom connecting cable)Balanced Power Supply Generation (BSG) for low background hum in even difficult or dirty AC line conditions.+68V Main Voltage Rail provides excellent headroom for good sound and low audible surface noiseLED Color: Blue (only) w/User-variable brightnessUpgraded Jacks and Mono Switch available at extra costBlack or Silver front available with no cost differential.Mono strapping possible via an internal jumper (for running a dedicated mono cartridge or TT without having purchased the external Mono switch)User-variable LED Brightness.LED Color: Blue (only). Upgraded Jacks and Mono Switch available at extra costBlack or Silver front available with no cost differential.SPECS:Distortion: 0.08% THD at 0.5V out, 1kHz into 10K load; 0.008% 3HD and higher, 1kHz at 0.5V into 10K loadS/N: 77dB A-Wtd re: 5mV input with simulated inductive standard MM type cartridge as a source (40dB gain).Maximum Output: 19V RMS (27.5dBu or 50V pk-pk) at 1kHz into 10K load.Frequency Response: RIAA: +/-0.23dB from 20Hz to 20kHzBandwidth: -1dB at 8Hz and 70kHz.Input Overload: 140mV at 1kHz input. Size: 7” D x 5 1/8” W x 1 9/16” H. Weight: 2.2 lbs. Packed weight: 3.3 lbs.External Power Supply Cube: 24VAC 500mA, available in US 120V, EU 230V, UK 230V or AUS/NZ 230V.**NOTE: AVAILABLE MORE INEXPENSIVELY THROUGH A DIFFERENT DISTRIBUTION CHANNEL****OTHER OPTIONS ALSO AVAILABLE ON THAT OTHER CHANNEL, INCLUDING BLACK FRONT PANEL, MONO SWITCH, AND UPGRADED JACKS.****PRICES HIGHER ON EBAY DUE TO EBAY FEES**

Price: 399 USD

Location: Roslindale, Massachusetts

End Time: 2025-01-08T05:35:08.000Z

Shipping Cost: N/A USD