ลำโพงใช้ไดรเวอร์เสียงกลาง/ทุ้มขนาดขนาด 4 นิ้ว และ Tweeter Horn ขนาด 3/4 นิ้ว รองรับการเชื่อมต่อระบบเสียงไร้สายผ่าน Bluetooth 4.0 สะดวกและง่ายต่อการใช้งาน ด้านหลังลำโพงมีช่องต่อสัญญาณ Subwoofer Out ทำเป็นระบบ 2.1 System

สำหรับการเชื่อมต่อสัญญาณอินพุตรองรับทั้งสัญญาณอะนาล็อกระดับไลน์และโฟโนสำหรับเครื่องเล่นแผ่นเสียง นอกจากนั้นยังมีอินพุตรับสัญญาณดิจิทัลทั้งแบบ optical และ USB สำหรับเชื่อมต่อใช้งานกับคอมพิวเตอร์

ด้านดีไซน์ลำโพงรุ่นใหม่นี้จะมีข้อแตกต่างจากรุ่นเก่าตรงที่ตัวตู้มีความคลาสสิกกว่า โดยมีการสลัก LOGO “Klipsch Reference” ไว้ตรงปากฮอร์น เพื่อความโดดเด่น ตัวตู้ไม้สีดำมีความแข็งแรงทนทานต่อการขีดข่วนได้ และรอบ ๆ ไดรเวอร์กลาง/ทุ้มประดับด้วยหัวน็อตแลดูงดงามคลาสสิก เสริมด้วยกรอบวงกลมรอบตัวไดรเวอร์เพิ่มมิติระหว่างตู้ลำโพงและตัวไดรเวอร์

Features
– ลำโพง Passive รูปทรงสุดคลาสสิค
– Digital Amplifier ภายในตัว
– ไดร์เวอร์แบบพิเศษภายใน
– ท่อสะท้อนเบสที่ด้านหลัง
– ขนาดที่กำลังดี ไม่ใหญ่ไม่เล็กเกินไป
– รีโมทควบคุมระยะไกล
– เชื่อมต่อไร้สายและมีสาย

Klipsch R-41PM
We rarely review traditional bookshelf speakers intended to connect to stereo receivers, but the $399 Klipsch R-41PM, sold as a pair, are only traditional from the front. For starters, there’s no stereo receiver required—on the rear panel, you can connect directly to a computer via USB, or to a Blu-ray player via Optical. But the real selling point is integrated Bluetooth, so you can easily play music from just about any sound source. In addition, the speakers look quite handsome, and they sound fantastic. You don’t need a sub to get rich bass depth from them, though adding one would provide the sub-bass rumble the speakers lack on their own. Either way, these are some of the most versatile bookshelf speakers we’ve seen.

Design
Available in black, the left and right speakers each measure 9.8 by 5.9 by 7.5 inches (HWD) and weigh a healthy 18.7 pounds. The front cloth grilles are removable, and underneath, each speaker has a handsome 1-inch tweeter (situated in a 90-by-90-degree horn) and a 4-inch copper-spun woofer. The Klispch Reference logo appears on the lower part of the tweeter, and the speakers look undeniably classy, grilles on or off (they snap into place magnetically). Klipsch includes eight silicone pads for the bottom corners of the speakers—especially if placing them on a wood surface, using the pads is advisable as it will keep them stabilized and also help control some of the bass vibrations.

The system delivers a frequency range of 76Hz-21kHz, so while you won’t be getting much in the way of sub-bass from the pair alone, the crossover is built in for sub compatibility. And the woofers still manage quite an impressive output despite not digging down to the deep lows—combined, the system output is 70 watts. An included cable connects from the left to the right speaker’s rear panel, where the main connections for the system are located.

On the right speaker’s back panel, there’s a master volume knob (which works independently of any connected Bluetooth device’s volume) that doubles as a source selector when pressed. Next to this is a ground connection for turntables, and there’s a switch for toggling between typical line signals and a turntable phono signal, as well as the required RCA inputs for connecting the turntable—no cable is included for this input. Near these, there’s a 3.5mm aux input and the aforementioned subwoofer output. To the left of these, there’s a USB connection for digital output from a computer—a long, sturdy cable is included for this—as well as the Optical input and a micro USB service port. Both speakers also have a ported area on the rear panel. The included power cable connects to the back of the right speaker.

Not all remote controls are essential, but you don’t want to lose the one included here. Its rubber buttons handle power, volume, subwoofer volume (should you connect one), mute, play/pause (for Bluetooth), and Bluetooth pairing. There are also dedicated buttons for the various sound sources: Aux, Optical, USB, and Phono. There’s an LED button for disabling the status LED and a sub level reset control. The remote runs on two included AAA batteries. The only thing missing here are track navigation buttons, but that isn’t a huge issue. If there’s complaint to be made, it’s that the remote has a little bit of delay at times when playing or pausing Bluetooth tracks.

Bluetooth pairing is a little clunky. The speakers do not automatically re-pair with your phone or tablet when they are switched to Bluetooth. So every time you want to use Bluetooth, you have to manually connect. It doesn’t take long, but it’s annoying.

Performance
These are powerful speakers and they get quite loud. At top, insane levels, of course you can encounter distortion, but at safe listening levels that are still very high, we heard nothing of the sort. On tracks with intense sub-bass content, like The Knife’s “Silent Shout,” the speakers deliver powerful bass depth. As mentioned, the sub-bass realm isn’t really part of the R-41PM’s repertoire, but they still deliver everything above 76Hz with power and accuracy. Adding in a sub would create some lovely added depth, but it is not essential to enjoy tracks with powerful bass response. Beyond the bass presence, the mids and highs are dutifully represented—this is a bright, crisp sound signature with rich anchoring in the lows.

Conclusions
Even without a subwoofer, the Klipsch R-41PM speakers sound fantastic. At $400, they’re not cheap, but if there’s one thing that feels like we’re missing from the all-in-one wireless speaker era, it’s the beautiful stereo separation you get from well-placed bookshelf speakers. Here Klipsch takes modern connectivity and applies it to the old stereo template with great results, which will be well worth the money for some. In the stereo speaker department, we’re also fans of the Audioengine 2+, the Audioengine A5+, the Edifier R1280T, and the 2.1 Edifier S350DB. Each pair has its strengths, but the R-41PM is a worthy competitor.