The usual set of questions is; what is your budget, will it be mainly music or movies as well and are you in the USA?
Are these to go with the DH500?
You're not far off with the assumption on horns, but not all will do the job equally good.
This is the AVR, right?
Tuning range: FM, MW
Power output: 90 watts per channel into 8Ω (stereo)
Surround output: 130W (front), 130W (center), 130W (rear)
Frequency response: 10Hz to 70kHz
Total harmonic distortion: 0.09%
Input sensitivity: 500mV (line)
Signal to noise ratio: 96dB (line)
Output: 500mV (line)
Speaker load impedance: 8Ω to 16Ω
Digital inputs: coaxial, optical
Video Connections: HDMI, component, composite
Dimensions: 430 x 157.5 x 322mm
Weight: 7.4kg
Accessories: remote control
Year: 2009