The Klipsch R-40PM is a pair of powered bookshelf speakers with amplification and a phono preamp built in. They are sized for a desk, a bookshelf or a smaller room.
The right speaker is the active unit and holds the amplification for both channels. The left speaker connects to it with the supplied wire. The phono input has a Phono/Line switch and a ground screw terminal, so a moving-magnet turntable connects directly with no separate phono stage or amplifier. Set the switch to Line to use any line-level source.
A 1" aluminum LTS tweeter sits in a 90° x 90° square Tractrix horn. The woofer is spun-copper thermoformed crystal polymer (TCP). The cabinet is bass-reflex with a rear-firing port, so leave some clearance behind the speakers. Dynamic Bass EQ lifts the low end at lower volumes. A low-profile magnetic grille lets you run them covered or with the copper woofer showing.
- Type
- Powered bookshelf speakers (pair)
- Color
- Black
- Model number
- 1071484
- Tweeter
- 1" (2.5 cm) aluminum LTS on a 90° x 90° square Tractrix horn
- Woofer
- Single 4" (10.2 cm) spun-copper TCP
- Crossover
- 1730 Hz (passive)
- Enclosure
- MDF, bass-reflex with rear-firing port
- Frequency response
- 60 Hz to 20 kHz
- Bass extension
- 52 Hz (dynamic)
- Maximum output
- 100 dB
- Power
- 70 W total (240 W peak); 35 W per channel continuous at <1% THD
- Inputs