interconnects specifically for speaker drivers

I would call Pro Audio LA and have them make you some custom Mogami 1 into 3 interconnect cables. You can have them put on what ever connectors you want on them (I had them use Neutrik Pro-Fi connectors on mine). Try to get as close as possible to the Mogami 2549 specs for unbalanced RCA, which follows:

Specifications:

No. of Conductor: 2
Conductor:Details: 30/0.08 OFCSize(mm(2)): 0.339mm(2) (#22 AWG)
Insulation:Ov. Dia.(mm): 1.9 diameter (0.075")Material: XLPE (Cross-Linked Polyethylene)Colors: Blue / Clear
Shield: Served Approx. 64/0.18A
Jacket:Ov. Dia.(mm): 6.0i (0.236")Material: Flexible PVCColors: Black / Red / Yellow / Green / Blue
Roll Sizes:50m (164 Ft)100m (328Ft)200m (656Ft)
Weight per 200m Roll: 11kg

Electrical & Mechanical Characteristics:

DC Resistance at 20C:Inner Cond.: 0.058W/m(0.018W/Ft)Shield: 0.013W/m(0.004W/Ft)
Capacitance at 1kHz, 20C (Partial C. Value) See below figure*:K0: 76pF/m(23pF/Ft)K1: 11pF/m(3.4pF/Ft)
Inductance between conductors at 1kHz. 20C: 0.8H/m(0.24H/Ft)
Electrostatic Noise**: 50mV Max.
Electromagnetic Noise**: 0.15mV Max.
Microphonics at 50KW Load**: 30m V Max.
Voltage Breakdown: Must withstand at DC 125V/15sec.
Insulation Resistance: 100000 M W m Min. at DC 125V, 20C
Flex Life**: 14,500 cycles
Tensile Strength: 657N
Emigration: Non-emigrant to ABS
Applicable Temperature: -20C~ +70C(-4F~ +158F)

If you need to go balanced, use Mogami 2534 or whatever is closest for the 1 into 3 split.

I looked up these options but I don't know how good they are:
http://www.crutchfield.com/S-JaF5nernMxT/p_142AMYC/EFX-Y-adapter.html

http://www.cablestogo.com/product.asp?cat_id=118&sku=40650#

Hope it helps.

All the best,
Nonoise

needs to be RCA.

Offhand, I know of no company that makes cables specifically for certain frequencies. As Rrog has asked, coherency would be off the table. All companies go for the all-in-one approach. Usually they have different levels of improvement in their lines, which is one way you can go.

Is it necessary to go balanced? I only ask because if you come across an IC that really works for you but is somewhat reticent, say, in the lower mids and bass, you could bi-wire just that one area with the same type wire to see if it helps any.

Set aside some time for trial and error. There are several companies that give you 30 day return offers. Try to ask for wires that are already broken in and order several at the same time from the same and other vendors and be prepared to drive yourself crazy for a weekend or two.

All the best,
Nonoise

hence my asking for a recommendation on someone or a company who can do this coherently and synergy. ignore my adjectives above, with my setup i can have interconnects optimized for frequency range. i would think it is easier in some respects to make a great interconnect focused on a smaller frequency range, but the key is to have the set as you mention be coherent.

yes i do

If you are using Balanced XLR interconnects I can get you what you need at very reasonable cost.
Jim C. give me a call 5035267684 West Coast PST time.

Do you want the sound to be coherent?