In Reply to: As neo has stated, you *can't* passively biamp stock IIIas ... posted by andyr on August 9, 2010 at 17:39:57:
I have definitely passively biamped my MGIII’s in the past. You use the XO-1 to balance the 2 amps and only use the bass output of the external boxes. The high pass section would have to be removed from the external box circuitry. Per the XO-1 instructions: Cut (or desolder) the wire which attached the large yellow capacitors to the plus (+) input terminal. If rrob doesn’t have the external boxes or XO-1, I can supply them to him, along with the original instruction on how to hook them up. I have gone active 2-way and it is far superior, but rrob can work with what he has for now.
Regards,
Steve
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Follow Ups
- Hold on there Baba Boy! Passive *can* be done - MaggiesAndCats 18:24:02 08/09/10 (87)
- Yes, if you have the XO-1 *as well as* the external XOs. Or ... - andyr 20:12:11 08/09/10 (0)
- RE: Am I missing something? - rrob 19:35:53 08/09/10 (85)
- RE: Am I missing something? - neolith 20:25:33 08/09/10 (75)
- RE: Am I missing something? - rrob 20:33:55 08/09/10 (74)
- "Just the external XO" ... I hope you really mean "Just both external XOs"? ... - andyr 20:41:53 08/09/10 (73)
- RE: "Just the external XO" ... I hope you really mean "Just both external XOs"? ... - rrob 20:43:38 08/09/10 (72)
- And each box has just 1 pair of input terminals? nt - andyr 20:44:56 08/09/10 (71)
- RE: And each box has just 1 pair of input terminals? nt - rrob 20:52:45 08/09/10 (70)
- So can you explain how you were connecting 2 amps to the Maggies, then? nt - andyr 20:54:18 08/09/10 (69)
- RE: So can you explain how you were connecting 2 amps to the Maggies, then? nt - rrob 21:17:06 08/09/10 (68)
- OK, *now* we can understand what you're doing. :-)) .. - andyr 21:39:54 08/09/10 (67)
- RE: OK, *now* we can understand what you're doing. :-)) .. - rrob 22:03:43 08/09/10 (66)
- Correct. :-)) ... - andyr 22:41:54 08/09/10 (65)
- I'll have a go at explaining. - Davy 04:16:52 08/10/10 (64)
- RE: I'll have a go at explaining. - Davy 04:54:28 08/10/10 (63)
- Threshold is connected - rrob 05:51:22 08/10/10 (62)
- RE: Threshold is connected - Satie 19:33:10 08/10/10 (18)
- RE: Threshold is connected - rrob 20:07:46 08/10/10 (17)
- RE: Threshold is connected - Satie 14:19:08 08/11/10 (16)
- Satie, I was planning to use the 250s - rrob 18:55:25 08/11/10 (15)
- RE: Satie, I was planning to use the 250s - Satie 21:38:48 08/11/10 (14)
- Satie, thanks for the picture - rrob 07:02:30 08/14/10 (9)
- RE: Satie, thanks for the picture - Davy 07:35:50 08/14/10 (8)
- RE: Satie, thanks for the picture - rrob 09:52:26 08/14/10 (7)
- RE: Satie, thanks for the picture - Satie 13:17:11 08/14/10 (4)
- Satie, I don't think my preamp has - rrob 15:08:32 08/14/10 (3)
- RE: Satie, I don't think my preamp has - Satie 16:02:24 08/15/10 (2)
- RE: Satie, thanks for checking - rrob 16:33:04 08/15/10 (1)
- RE: Satie, thanks for checking - Davy 17:34:21 08/15/10 (0)
- RE: Satie, thanks for the picture - Davy 11:13:37 08/14/10 (0)
- RE: Satie, thanks for the picture - Davy 11:04:23 08/14/10 (0)
- RE: Satie, I was planning to use the 250s - pictureguy 09:44:10 08/12/10 (3)
- RE: Satie, I was planning to use the 250s - Satie 10:07:08 08/12/10 (2)
- RE: Satie, I was planning to use the 250s - pictureguy 11:47:02 08/12/10 (1)
- RE: Satie, I was planning to use the 250s - Satie 14:53:39 08/12/10 (0)
- RE: Threshold is connected - Davy 06:03:29 08/10/10 (42)
- No soldering of the capacitor - neolith 06:32:39 08/10/10 (41)
- RE: No soldering of the capacitor - Davy 06:52:49 08/10/10 (40)
- RE: No soldering of the capacitor - neolith 18:41:02 08/10/10 (4)
- RE: No soldering of the capacitor - Davy 18:59:11 08/10/10 (3)
- Single cap high pass passive line-level xo - neolith 13:19:22 08/12/10 (2)
- RE: Single cap high pass passive line-level xo - Davy 06:59:07 08/16/10 (0)
- RE: Single cap high pass passive line-level xo - Davy 13:28:27 08/12/10 (0)
- Do you need the capacitor when you go active? *nt* - MaggiesAndCats 07:22:55 08/10/10 (34)
- NO, But.... - Davy 07:43:05 08/10/10 (33)
- Interesting... - MaggiesAndCats 08:21:06 08/10/10 (32)
- RE: Interesting... - Davy 08:30:53 08/10/10 (31)
- RE: Interesting... - MaggiesAndCats 09:06:17 08/10/10 (30)
- RE: Interesting... - Davy 09:27:10 08/10/10 (29)
- RE: Interesting... - Davy 16:15:28 08/10/10 (28)
- Analog only - MaggiesAndCats 20:33:51 08/10/10 (25)
- RE: Analog only - Davy 03:52:58 08/11/10 (24)
- RE: DIGITAL only - Satie 14:49:11 08/11/10 (9)
- RE: DIGITAL only - Davy 16:09:13 08/11/10 (8)
- RE: DIGITAL only - Satie 23:04:46 08/11/10 (7)
- RE: DIGITAL only - Davy 06:33:18 08/12/10 (6)
- RE: DIGITAL only - Satie 09:55:03 08/12/10 (5)
- RE: DIGITAL only - Davy 13:09:23 08/12/10 (4)
- RE: DIGITAL only - Satie 12:59:29 08/14/10 (3)
- RE: DIGITAL only - Davy 14:35:18 08/14/10 (2)
- RE: DIGITAL only - Satie 16:30:17 08/15/10 (1)
- Thanks Satie, I'm getting there! - (slowly!) - Davy 17:43:28 08/15/10 (0)
- RE: Analog only - josh358 11:34:49 08/11/10 (13)
- RE: Analog only - Davy 12:12:21 08/11/10 (12)
- RE: Analog only - josh358 12:59:57 08/11/10 (11)
- RE: Analog only - Davy 13:33:51 08/11/10 (10)
- RE: Analog only - josh358 16:57:48 08/11/10 (9)
- RE: Analog only - Davy 17:57:01 08/11/10 (8)
- RE: Analog only - josh358 18:17:09 08/11/10 (7)
- RE: Analog only - Davy 19:11:56 08/11/10 (6)
- RE: Analog only - josh358 20:12:43 08/11/10 (5)
- RE: Analog only - Davy 06:27:52 08/12/10 (4)
- RE: Analog only - josh358 08:26:39 08/12/10 (3)
- RE: Analog only - Davy 12:57:39 08/12/10 (2)
- RE: Analog only - josh358 13:13:16 08/12/10 (1)
- RE: Analog only - Davy 13:19:29 08/12/10 (0)
- RE: Interesting... - rrob 17:26:58 08/10/10 (1)
- RE: Interesting... - Davy 17:39:44 08/10/10 (0)
- Yes - the black box - MaggiesAndCats 20:00:13 08/09/10 (8)
- RE: Yes - the black box - rrob 20:16:55 08/09/10 (6)
- Amp with DC output - neolith 20:31:03 08/09/10 (5)
- RE: Amp with DC output - rrob 20:38:43 08/09/10 (4)
- DO NOT DO IT! - neolith 18:46:38 08/10/10 (3)
- RE: DO NOT DO IT! - rrob 18:51:31 08/10/10 (2)
- It depends if your amps are designed to be able to cope with a short ... or not! :-)) nt - andyr 03:22:20 08/11/10 (1)
- RE: It depends if your amps are designed to be able to cope with a short ... or not! :-)) nt - pictureguy 09:52:27 08/12/10 (0)
- You do have 2 of the external crossover boxes, right? One for each speaker? *nt* - MaggiesAndCats 20:03:50 08/09/10 (0)