On the Bench
I used the CD input for analog and digital test signals. For analog signals, I used the Bypass mode which cuts the tone controls out of the circuit and delivers all of the sound to the front left/right speakers, with no subwoofer. For digital signals, I used the 2-Channel PCM mode.
Using a 1 kHz analog sine wave, THD+Noise was very low.
With 5 kHz and 6 kHz analog sine waves, IMD was also quite low, reaching the limits of our test equipment.
At 10 khz, THD was again, extremely low.
With 10 kHz and 11 kHz analog sine waves, IMD was so low, it was beyond our test equipment limits. This is really excellent performance.
Using 24 bit - 48 kHz digital samples, THD was also very low, but not quite as low as with analog input.
IMD was low, using digital input samples, but again, not as low as with analog input.
At 10 kHz, again the THD was not as low as with analog input. Nevertheless, distortion in all tests was within spec and extremely low.
The measured frequency response was 20 Hz - 20 kHz ± 0.5 dB in Bypass mode and Stereo mode.
The Rotel RSP-1098 is an excellent SSP. It will serve not only for top notch surround sound in movies, but provides great sound as an audio preamplifier for DVD-A, SACD, and your collection of CDs. For $3,000 it has one of the nicest new features on SSPs, the LCD display panel, which makes it extremely easy to set up and use. This product is a very fine value, with first rate performance.
- John E. Johnson, Jr. -