RTi4

The Polk Audio RTi4 is a high-performance bookshelf speaker from the early 2000s, known for its detailed sound and stylish design.

Short Description: The RTi4 is a compact, two-way bookshelf speaker with a modern look, featuring a doped silk-dome tweeter and a polymer composite woofer. It delivers clear mids, crisp highs, and a wide soundstage, ideal for music and home theater setups, though it benefits from a subwoofer for deeper bass.

Key Points:

• Type: Two-way biwirable bookshelf loudspeaker.
• Drive Units: 1″ doped silk-dome tweeter, 5¼» plastic-cone woofer.
• Frequency Response: 60Hz–26kHz (-3dB); Range: 50Hz–27kHz.
• Crossover: 1.9kHz, 12dB/octave high- and low-pass slopes.
• Impedance: 8 ohms.
• Sensitivity: 89dB/W/m.
• Recommended Amplification: 20–125W.
• Dimensions: 12″ H x 7″ W x 11½» D.
• Weight: 29 lbs (pair).
• Features: PowerPort bass venting, Acoustic Resonance Control (ARC) port, dual front/rear ports for reduced noise, and wall-mountable design.
• Sound: Detailed midrange, sweet highs, and good imaging; bass is clean but limited, requiring a subwoofer for full low-end.
• Build: ¾» MDF enclosure, black or cherry wood veneer finish, removable grille; praised for aesthetics and durability.

Year of Manufacture: ~2003–2004.

Additional Notes:

• Highly regarded for classical music and small-room setups; excels with a subwoofer like the Polk PSW10.
• Discontinued but available on second-hand markets; Stereophile and Amazon reviews praise its value and sound quality.
  
  
• Grilles off improve detail slightly; biwiring enhances performance.