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    Thread: 3 month used Celestra RA 475 for Sale

    1. #1
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      3 month used Celestra RA 475 for Sale

      Celestra RA 475 - Made in Italy true blood SQ Amp for sale

      Usage: 3 Months
      Cosmetic Condition: 9.5 / 10 (only screw marks)
      Functional Condition: 10 / 10
      Accomplishments: Same Amp that won us the MOC SQ basic award for 2014
      Specs: http://www.celestra.it/ita/prodotti/schede/RA475x.pdf
      Expected Price: 25k (MRP 62,990)
      Reason for Sale: Bankrupt :|
      Pics:

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    2. #2

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      Specs can help.


      RA475x 4ch. AMPLIFIER
      • 4x 75W rms nominal power.
      • Built as "DUAL 2 channels" (fully separate 2 main boards).
      • "Audiophile grade" audio quality - Zero Feedback Ratio Design.
      • 2x 240W rms bridged mono.
      • Tri-mode operation (mono + stereo without any switch or adapter).
      • Internal cross-over low-pass and high-pass fully independent in tuning (50-3.5K)Hz and by-pass. • Perfect for cut as sub & low-mid; low-mid & high-mid; high-mid & tweeter.
      • Two independent 500W DC (@12V) high frequency switching power supplies.
      • No one aluminum capacitor in the signal path.
      • 200W complementary power Mosfet (each) on audio output stage.
      • Intelligent electronic protection design capable to put out high impulsive currents.
      • Very compact outline, with two integrated high flux fans.
      • Fine chromed and polished finish.
      * These power levels have been measured by very tight and severe Joule's law physical effects, it is not possible to compare these values with declared values of other brand.
      TECHNICAL PAPER - RA475x
      CONTINUOUS OUTPUT NOMINAL POWER *: [both ch. driven from 20 hz to 20 Khz; THD < 0.1%]]
      4x 75Watt/4ohm @11Vbatt.
      4x 120Watt/2ohm @11.5 Vbatt.
      2x 240Watt/4ohm (bridged) @ 11.5Vbatt.
      OUTPUT CURRENT [THD<1%; 20 hz to 20 Khz]: 8 Arms continuous
      14 Arms (100mS peak)
      • 12 db/oct low-pass and 12 db/oct high-pass Built-in cross-over, separately turn-on onto each ch. pair
      • separately adjustable from 50Hz to 3.5Khz
      • straight by-pass allowing full-range mode
      FREQUENCY RESPONSE [-3Db]: at 6 hz and more than 140 Khz (at nominal power into 4 ohm)
      THD: less than 0.1% until 1┬░clipping [20 hz to 20 Khz] INPUT IMPEDANCE: 10 Kohm
      INPUT SENSITIVITY: max 500 mVrms; min 4 Vrms
      STEREO SEPARATION: 65 Db at 1 Khz each other
      SIGNAL TO NOISE RATIO: >115 Db "A" weighted
      CURRENT CONSUMPTION [at 12 Vbatt]:
      - idle = (0.8+0.8) A
      - 24+24 A max at nominal power into 4 ohm (4ch. stereo) - 38+38 A max at nominal power into 2 ohm (4ch. stereo) - 38+38 A max at nominal power into 4 ohm (2ch. bridged)
      PROTECTION TRIGGER AT: - short on speakers outputs - battery voltage < 9 V
      - battery voltage > 15 V
      - thermal with proportional start of fans at 40┬░ C, shutdown at 70┬░ C
      - fully muted at turn on and off
      DIMENSIONS AND WEIGHTS: 325 x 188 x 42 mm
      2.4 Kg

      - - - Updated - - -

      Is it 2 ohm stable in bridge mode. No clarity in the specs about it.
      With dedicated board for each channel, I presume it should be 2 ohm stable in bridge mode.
      Car Audio: 4-way active
      Home Audio: Passive

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      must control
      It's the best way to dump money and spend an inordinate amount of time...because all debts are paid when the hairs on the back of your neck stand straight up and goosebumps cover your arms, because the sound is SO good. - Scott Buwalda

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      Quote Originally Posted by karanbhatia View Post
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      Quote Originally Posted by kb100 View Post

      There goes the other kidney.....
      Kidney is for the expensive stuff. A tooth will probably suffice for this
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      Quote Originally Posted by kb100 View Post
      There goes the other kidney.....

      Quote Originally Posted by mclaren1885 View Post
      Kidney is for the expensive stuff. A tooth will probably suffice for this
      Kidneys already rented out :l
      It's the best way to dump money and spend an inordinate amount of time...because all debts are paid when the hairs on the back of your neck stand straight up and goosebumps cover your arms, because the sound is SO good. - Scott Buwalda

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      Quote Originally Posted by kb100 View Post
      There goes the other kidney.....
      Quote Originally Posted by mclaren1885 View Post
      Kidney is for the expensive stuff. A tooth will probably suffice for this
      Quote Originally Posted by karanbhatia View Post
      Kidneys already rented out :l
      The "kidney" and "cement bag" trade marks are owned by me. Please refrain from using without permission
      Did you have any kidneys to even rent out?
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      By Kidney Karan means Kid-Knee, that makes it 2 more he can rent out
      Clarion NX-706| Biketronics BT4180 | Sinfoni Allegro | Soundigital 1200.1 | Audible Physics Brahma6W | Audible Physics NZ3AlBe | Morel Ultimo | Klotz 12ga LY225t| Mogami RCA| Pure Silver RCA

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      Mi10 saar apologies for the thread derailment with my defunct and apparently non sellable organs

      BUMP for a really good amplifier .... Or rather two completely separate amplifiers in a single chassis .
      It's the best way to dump money and spend an inordinate amount of time...because all debts are paid when the hairs on the back of your neck stand straight up and goosebumps cover your arms, because the sound is SO good. - Scott Buwalda

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