Ω issues, HELP!!!!

dbayyz

DBAYYZ
I have an Onkyo TX-SV727 Specs:

FEATURES:

DISCRETE OUTPUT STAGE: The TX-V940 employs an All Discrete Transistors in the output stage for effortless drive into low impedance loads
POWER COMPONENTS: Dual 6,800 uF Capacitors, Over-Sized Isolated High Power Low-Impedance Transformer and Extruded Aluminum Heat-Sink, which effortlessly drives 4 ohm loads
POWER OUTPUT: 100 Watts RMS x 2 @ 8 ohm/ 130 watts @ 4 ohms
Frequency Response: 20 Hz – 30,000 Hz
THD: 0.08%
Signal to noise ratio: Tape/CD 100 dB, Phono 80 dB
Phono: MM output 120 mV
Damping Factor: 60 at 8 ohms
Video Dubbing capability
Adjustments: Bass, Treble, Balance
Selective Tone Control
Six Class Classifed tuning
Local/Dx auto/mono/Automatic Precision Reception (APR)
FM Quartz Synthesized Tuner
Battery Free memory backup
Direct Access Tuning
GE Universal Remote: Quality Metal face, lighted buttons works very well
Motorized Volume Control - Via Universal Remote
Audio Input: Phono, CD, Tape 1, Tape 2, Video 1, Video 2
30 AM/FM Presets
Impedance Selector: 8 ohm/4 ohms switch
Speaker Connection: Clip-Lock – A, B, A & B 4 & 8 Ohm
Dimensions: 18" W x 13" D x 5 7/8" H (45 x 331 x 150mm)
Weight: 20.9 lbs (9.5 kg) without packaging.


Hooked up to MX-250 Cerwin Vegas which are 4 Ω. Does the receiver know the resistance or is there a way to select it? And what can I do to optimize the system?
 
My Onkyo TX870 states on the back panel A or B 4ohm MIN, A&B 8ohm MIN. Pretty clear what I can hook up to my receiver.
Now in your features above you note an 8ohm/4ohm selector switch?

I am getting ready to add a pair of Epos Epic 2 which state they are 4ohm, so I am looking forward to the sound.
My Onkyo also states "Discrete Output Stage" to drive low impedence loads....So all should be good.
 
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