Mikorist Napisano Septembar 18, 2018 Share #1 Napisano Septembar 18, 2018 Slučajno naleteh na ovo... Circuit Description The Modulus-86 Rev. 2.3 is a composite amplifier providing true world class performance. This performance level is reached by using a specialized audio op-amp to perform error correction on a high-power chip amplifier. This Neurochrome composite amplifier topology results in a high-performance 65 W amplifier with vanishingly low distortion and phenomenal sound quality. The Modulus-86 is a turnkey analog subsystem. It requires no adjustments and it achieves state of the art performance using readily available off-the-shelf parts. The Modulus-86 uses one channel of an LME49720 precision audio op-amp to perform error control on an LM3886 power amplifier. An OPA2277 precision op-amp is used as a high-end DC servo with third order filtering for an ultra-low output DC offset and fast settling time. The DC offset is less than 200 µV and is reached within ten seconds of power-up. A THAT1200 differential receiver provides common-mode rejection rivaling that of a line transformer, thus, minimizing hum injection by eliminating ground loops in the signal path. The Modulus-86 is power supply agnostic, which is a unique feature to the Modulus-86. Due to the error correction provided by the Neurochrome composite amplifier topology, the Modulus-86 performs as well on a traditional unregulated linear power supply or a switch mode power supply (SMPS) as it does on a well-regulated laboratory power supply. Key features of the Modulus-86 Rev. 2.3: 70 W (4 Ω), 40 W (8 Ω) output power when using the Power-86 and recommended transformer. Mono construction: One Modulus-86 board per channel. On-board error correction circuit with local low-noise power supply regulators. Ultra-low 0.000054 % (-125 dB) THD (1 W, 8 Ω, 1 kHz). Ultra-low 0.000088 % (-121 dB) THD (40 W, 8 Ω, 1 kHz). Ultra-low 0.00042 % (-108 dB) THD+N (40 W, 8 Ω, 1 kHz). Differential input with nearly 90 dB CMRR eliminates hum and ground loop issues. Differential/balanced/XLR input can be used with single-ended/unbalanced/RCA sources as well. Power supply agnostic. The phenomenal power supply rejection ensuring consistent, high performance even with unregulated power supplies and switch mode supplies. Ultra-low -120 dB inter-channel crosstalk in stereo builds greatly simplifies the power supply requirements. Elaborate use of planes and copper pours to maximize circuit performance by minimizing supply and ground impedances. Low-inductance signal ground connects to power ground at one point only for maximum performance. On-board Zobel and Thiele networks for maximum stability even with capacitive loads. On-board EMI/RFI input filter and ESD protection. Power and output terminal blocks accept wire sizes up to AWG 10 (5.2 mm2). All thru-hole construction with socketed ICs. Easy to solder. 90 × 70 mm board footprint. Bill-of-materials includes a Mouser Electronics Project Link for ease of parts ordering. https://www.neurochrome.com/modulus-86/ bolest Link to comment Podeli na ovim sajtovima More sharing options...
Mikorist Napisano Septembar 18, 2018 Autor Share #2 Napisano Septembar 18, 2018 Ja ovo mora da nabavim (ili je možda samo ideja nekome ko ne zna šta će da sklapa) https://www.neurochrome.com/product/modulus-86-4/ Ovo je Gainclone ?? Link to comment Podeli na ovim sajtovima More sharing options...
Mikorist Napisano Septembar 18, 2018 Autor Share #3 Napisano Septembar 18, 2018 kako izgleda gotovo Link to comment Podeli na ovim sajtovima More sharing options...
Mikorist Napisano Septembar 18, 2018 Autor Share #4 Napisano Septembar 18, 2018 Delovi sa gornje slike Antek AS-2222 200va 22v transformer: http://www.antekinc.com/as-2222-200va-22v-transformer/ Shielded IEC connector with power switch and fuse Power-86 https://www.neurochrome.com/product/power-86-2/ Neutrik XLR Hifi2000 case https://www.modushop.biz/site/index.php?route=product/product&path=204_205&product_id=725 Ima varijanta sa drugim napajanjem https://www.neurochrome.com/product/smps-86-2/ plus može da se doda softstart https://www.neurochrome.com/product/iss-intelligent-soft-start-2/ Link to comment Podeli na ovim sajtovima More sharing options...
aaa zmaju! Napisano Septembar 18, 2018 Share #5 Napisano Septembar 18, 2018 2 hours ago, Mikorist said: Ja ovo mora da nabavim ma bolje nabavi ovo https://www.diyaudio.rs/topic/9079-batomm-komplet/ Mikorist je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
Mikorist Napisano Septembar 18, 2018 Autor Share #6 Napisano Septembar 18, 2018 Imaju skoro isti oscilogram. nije šija nego je vrat Link to comment Podeli na ovim sajtovima More sharing options...
Bajlag Napisano Septembar 18, 2018 Share #7 Napisano Septembar 18, 2018 To su sve kompozitni pojacavaci, sto bi znacilo 2 opampa u red, pa povratna sprega. Dobije se preko 100dB povratne sprege koja tu ispravlja sta ispraviti moze. Naravno ako izlazni tranzistor moze da isporuci 5 Ampera, 100dB povratne sprege ne mogu da poboljsaju situaciju. :) Walt Jung je radio na popularizaciji tog koncepta u svojim publikacijama, mislim da je i Wurcer nesto piskarao svojevremeno na tu temu. Po meni to je super koncept za 2 way male aktivne monitore. Mikorist je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
Mikorist Napisano Septembar 18, 2018 Autor Share #8 Napisano Septembar 18, 2018 Ja sam za to da neko osmisli kompozitni AMP sa SIT tranzistorima na izlazu. Evo Zen kad se vrati sa odmora. Link to comment Podeli na ovim sajtovima More sharing options...
Impuls Napisano Septembar 18, 2018 Share #9 Napisano Septembar 18, 2018 Mislim da je jako slicno BatoMM resenju i nema potrebe bacati par na to. ja bih pe uradio balansirano sa 3875 sa plocicama od Peter Daniela Mikorist je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
Mikorist Napisano Septembar 18, 2018 Autor Share #10 Napisano Septembar 18, 2018 8 minutes ago, Impuls said: Mislim da je jako slicno BatoMM resenju i nema potrebe bacati par na to. I ja mislim. No ima na onom sajtu dosta toga mi se sviđa. Ovo napajanje recimo bi išlo i na jedno i drugo odjednako https://www.neurochrome.com/product/smps-86-2/ Link to comment Podeli na ovim sajtovima More sharing options...
Bajlag Napisano Septembar 18, 2018 Share #11 Napisano Septembar 18, 2018 55 minutes ago, Impuls said: Mislim da je jako slicno BatoMM resenju i nema potrebe bacati par na to. ja bih pe uradio balansirano sa 3875 sa plocicama od Peter Daniela LM3875 su prestali da stancaju, 3886 jos zivi. Link to comment Podeli na ovim sajtovima More sharing options...
Bajlag Napisano Septembar 18, 2018 Share #12 Napisano Septembar 18, 2018 50 minutes ago, Mikorist said: I ja mislim. No ima na onom sajtu dosta toga mi se sviđa. Ovo napajanje recimo bi išlo i na jedno i drugo odjednako https://www.neurochrome.com/product/smps-86-2/ Skupo to bre Miko, za 200 dolara kupis kilovatni trafo i 100k elektrolita. Napravis ozbiljan amp. Mikorist and skrstic je reagovao/la na ovo 2 Link to comment Podeli na ovim sajtovima More sharing options...
vladd Napisano Septembar 19, 2018 Share #13 Napisano Septembar 19, 2018 Ili dva laptop napajanja. Pride sto bih povadio sve te luster kleme, kao da je zalemiti par zica na plocu problem, a kasnije ce se svaki cas skidati.. Razumeo bih da je modul zaliven, ali lusterka na golu stampu, a ne demontira se svakicas, bezveze.. U svakom slucaju, BatoMM je za nijansu specificniji pojacavac, zbog most konfiguracije, i prakticno veceg odvajanja energetske mase od signalne, grubo receno. Link to comment Podeli na ovim sajtovima More sharing options...
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