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#11
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I do hope you are able to come to an acceptable solution. I use a REL B1, one unit, and it blends beautifully with my Sf Cremona Auditor Ms. A true sw should be felt before being heard, part of the room pressurization they are designed to do.
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“Life is what happens to you while you’re busy making other plans” |
#12
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- Buck
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Library: Speakers: Avalon Acoustics Isis, Subwoofers: (2) REL Acoustics 212SE Amplification: D’agostino Momentum preamplifier, D’agostino S250 stereo amplifier Digital: dCS Rossini CD/SACD transport, dCS Rossini DAC/streamer/master clock. Analog: Brinkmann Taurus table, Lyra Etna Lambda, Audio Research Ref. Phono 3 |
#13
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BUCK, here's more info from REL in case you didn't see.......https://relsupport.zendesk.com/hc/en...ced-Monoblocks
Ron
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Ron Processor: McIntosh MX170, Amp: Legacy Audio i-V7, Digital: Benchmark DAC3B, Roon Music Player, Oppo UDP-205, Apple TV 4K, Fire TV Stick 4K Max, Analog: Gold Note Pianosa Turntable, Gold Note PH-10 Phono Preamplifier, Donatello MC Cartridge, Speakers: Legacy Audio Signature SE Natural Sapele Pommele, Silverscreen HD Center, JL Audio e112-Gloss Sub |
#14
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#15
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Sometimes there are connection issues with REL when connected to fully balanced, or dual differential amps. The issue is finding the correct place to ground the sub. Try connecting the blk. wire to chassis gnd. or to the gnd. side of your amp's RCA input. If these two locations don't fix the issue leave the blk. wire disconnected and run a separate wire from your amp's RCA gnd. to the sub's RCA input gnd. .
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System: ML:5206,5302 Serafino's Nordost Lumin U1 RM15 |
#16
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- Buck
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Library: Speakers: Avalon Acoustics Isis, Subwoofers: (2) REL Acoustics 212SE Amplification: D’agostino Momentum preamplifier, D’agostino S250 stereo amplifier Digital: dCS Rossini CD/SACD transport, dCS Rossini DAC/streamer/master clock. Analog: Brinkmann Taurus table, Lyra Etna Lambda, Audio Research Ref. Phono 3 |
#17
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Buck - not all McIntosh amps have the same output configuration. Your 402 like my 602 has fully floating transformer outputs that aren’t referenced to chassis ground anywhere.
So the REL speaker level hookup just doesn’t work in this case. It’s a REL design defect. REL needs to use balanced differential inputs for their speaker level connections which would solve the problem completely and simplify user hookup. Other sub manufacturers do exactly this. You’ve found a pretty high class way around the problem! ![]() Tom
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Main System: Amati Futura Mains Amati Homage VOX Center, Proac Response 1sc Rears, Three MC2301's for L,C,R MC 602 for the rears C 1100, MX 151, MCD 1100, MR 80 Nottingham Dais with Wave Mechanic Sumiko Palo Santos Presentation SurfacePro 3, RPi 4, ROON, WW Starlight Platinum USB, Schiit Yggdrasil, Benchmark DAC3 HGC MX 151, OppO BDP-95, JVC RS-500 DILA projector, 106" diagonal Stewart Luxus Screenwall Deluxe with Studiotek 130 G3 material. Lake House: Ohm F, MC 275V, C2300, MR 77, Rega P3 OnDeck: McIntosh MAC 4300v |
#18
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I'm not familiar with the grounding scheme of your new amp. Hope I wasn't too technical, simply put grounding is the key to proper operation. Some amps, like my Levinson, have two ground circuits, chassis gnd. and signal gnd.. Signal gnd. is 10 ohms above (higher) chassis to prevent noise from degrading the input signal. So I had similar issues. This is not a defect, just requires a different solution.
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System: ML:5206,5302 Serafino's Nordost Lumin U1 RM15 |
#19
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System: ML:5206,5302 Serafino's Nordost Lumin U1 RM15 |
#20
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Call REL, they can walk you thru it...(to OP) |
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