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200 Watt Bi-Amped Bluetooth Bookshelf Speakers with USB
Tons of horsepower, great looks, and flexible connectivity options make these speakers the definitive desktop speaker system. Featuring a separate 50-watt RMS amplifier for each of the four drivers, these speakers produce deep and solid bass, without the need for a separate subwoofer, plus clear, clean, and articulate mids and highs. The USB input option makes them the perfect audio companion for a desktop computer gaming system. The dual RCA line inputs allow you to connect to up to two line level audio devices and the Bluetooth® radio allows for easy streaming from your mobile device. An infrared remote control is included so you can adjust the volume and switch inputs without leaving the comfort of your couch.
High quality USB audio | Wireless streaming | Great sound at all volume levels
Bluetooth® Bookshelf Speakers with USB
Sound Quality: Life is too short for speakers that don't sound great! We believe that the whole point of listening to music is to hear it as the artist intended. Our engineers and audio experts have spent countless hours listening to and comparing various speakers and headphones until we were satisfied we had found models that fit our demanding standards.
Connectivity: We want you to use these amazing speakers with everything, so we packed them with connectivity options. Use a USB cable to connect to your Windows® or Mac® PC or use the Bluetooth® feature to wirelessly stream music from your phone. The dual RCA line inputs feature a high-level input for connecting to line level audio components, such as CD and DVD players, and a low-level input for connecting to the headphone output of an mp3 player or other mobile device.
Power: Oh yeah, baby! You say you want power, well these speakers have power and then some. Each of the four drivers is powered by a separate 50-watt RMS amplifier, for a total of 200 watts RMS! Ordinary powered speakers, with only a single amp per channel, suffer when one driver wants more than its share of power, causing the other to be underpowered. This can cause distortion or even speaker damage. By using a separate amp for each driver, we ensure that each tweeter and each woofer gets all the power it needs.
Streaming videos, podcasts, and music has never sounded better!
- 6.5" woofer
- 1" silk dome tweeter
- 44.1 - 96 kHz USB DAC
- 30Hz ~ 20kHz frequency response
- Dual RCA line inputs
- Includes wireless remote control
Monoprice not only stands behind every product we sell with a 1 year replacement warranty, we offer a 30-day money back guarantee as well! If the product you purchase does not satisfy your needs, send it back for a full refund.
Quality at a Fair Price
Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices.
Service & Support
You're never on your own with Monoprice products! We have a full team of friendly and knowledgeable technicians available to answer your questions, both before and after the sale. Contact our technical support team for questions about our products, troubleshooting, or even suggestions for products to fit your particular needs. Not to be outdone, our friendly and helpful customer service team is here to make your ordering, delivery, and any possible returns a quick and painless operation, from start to finish!
|Frequency Response||30Hz ~ 20kHz|
|SPL (1W@1m)||87dB ±3dB|
|Signal-to-Noise Ratio||62dB (A-weighted)|
|Low Frequency Amplifiers||2x 50W (RMS)|
|High Frequency Amplifiers||2x 50W (RMS)|
|High Frequency Amplifiers||±6dB|
|Bass Adjustment Range||±6dB|
|AUX1 Nominal Input Strength||2000mV (RMS)|
|AUX2 Nominal Input Strength||800mV (RMS)|
|Supported Bluetooth Profiles||A2DP, AVRCP|
|Built-in DAC||44.1 ~ 96 kHz DAC|
|Remote Control Battery Type||CR2025 3V Lithium battery|
|Main (Left) Speaker Dimensions||11.8" x 11.4" x 7.9" (300 x 290 x 200 mm)|
|Slave (Right) Speaker Dimensions||11.8" x 10.2" x 7.9" (300 x 260 x 200 mm)|
|Weight (Total)||28.5 lbs. (12.9 kg)|
- User's Manual (Jul 20, 2015)
The Bluetooth® word mark and logos are registered trademarks of Bluetooth SIG, Inc.
Microsoft® and Windows® are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
Apple® and Mac® are trademarks of Apple Inc., registered in the U.S. and other countries.
Questions and Answers
Packaging: This is one thing I am very particular about when it comes to sound equipment, and unintentionally this very item got tested for it even before it got delivered. US TSA and the courier service decided to randomly pick this package for inspection and they did not handle it gently (pictures 1-3 in the album). I would like to see Monoprice add a "Fragile" sticker to the packaging here if possible but despite the rough handling the sample arrived in near perfect conditions. Two pieces of thick, hard styrofoam keep the contents in check (pictures 4, 5) and the only "damage" was a scratch on the styrofoam itself.
Accessories: Aside from the bookshelf style speakers themselves which we will get to soon, you also get accessories packaged in recycled cardboard (pictures 6, 7). This box contains a user manual (picture 8), a power brick adapter (pictures 9-12) which takes as input 110-240 V mains making it globally compatible and provides a 24 V, 4.17 A output (100 W) to the speakers. This power adapter leaves very little headroom to account for any issues as the amps rated at 200 W total follow the general 2x speaker power rating for clean, undistorted rating. Thus not only is there not much headroom in the amp power rating but also the power adapter will end up running at near 100% rating. Keep in mind that these ratings are with the volume at full with the speakers in wired mode. Aside from the power brick, you get a slave speaker cable to connect the slave unit to the primary unit and a power cord to connect the power brick to the mains (pictures 13-18), both of which are rated at 18 AWG. Again, this is a cost cutting measure as 16 AWG or better are generally preferred but it is not a major issue for bookshelf speakers which are meant to be close to each other. Also provided is a USB type A female to type B male adapter cable (picture 19), with the primary speaker unit having a female type B port on it. This allows you to connect a computer to the speakers, and this is also where the built-in DAC comes into play. If you have a HTPC, then this would be a nice way to connect the speakers- especially if your motherboard does not have dedicated sound channel outputs. Speaking of, you also get 2 sets of RCA input cables (pictures 20, 21) to cater to the strong signal and weak signal RCA input jacks on the primary unit. Finally, there is an IR remote (pictures 22-24) to control the speakers. It takes a CR2025 button type battery which comes pre-installed in retail units. This review unit was air shipped and as such did not have it pre-installed. All the accessories were confirmed to work as intended in the testing period of 10 days.
Speakers: The two units come with a thin, soft foam sheet covering each unit on all sides (picture 25) and removing it you see the units are all black, large and rugged (picture 26). Each unit comes in at 30 x 20 x 20 cm (although the primary unit extends backwards another 4-5 cm) and weigh ~13 kg (29 lbs) total. There is not a lot of weight disparity between the two units and they do quite similar aside from the back (pictures 27-35). The primary unit has the power and connectivity options on the back, along with a decently sized anodized aluminum heatsink as a passive cooling solution for the electronics. As such, you need to make sure the primary unit at the very least is in a ventilated area and not cramped/confined. The user manual recommends allowing for at least 12" of space around it and I agree with this assessment. Without going into a lot of detail on the speakers themselves as the user manual does a decent job, you have wireless (bluetooth) and wired (RCA, USB) connectivity options. The power and reset buttons are on the back which is a minor nuisance but thankfully the remote control can handle powering the speakers on and off. Removing the front speaker grills gives you a better look at the woofer (6.5") and tweeter (1") on each unit. Also on the front of the primary unit is a status LED which is a good visual indicator of the unit in action, with the various LED functions explained further in the user manual. At the bottom right on the front of the primary unit is the IR receiver for the remote so make sure it is not obstructed either. There are no "feet" on the units which does mean they are prone to get scratched easily. The units themselves are stained wood, as seen in pictures 36-40, and build quality is not the greatest here. The glue used to hold the woofer and tweeter in place is messily applied, and some better space management could have been done to reduce the overall dimensions.
Functionality: While I will do an add-on review soon with quantitative test results for the speakers, I wanted to provide my thoughts on the speakers as they are now. In wired mode, be it RCA (I used the strong signal jack) or USB, they sound really good in an open room with walls 10' away in the other directions. The speaker jack cable is long enough so you can have the two units on either side of a large 50" TV as well and connect it to your home media (disc players, HTPC or the TV itself). Bluetooth mode means you can use a smartphone and apps such as Pandora easily but keep in mind that audio fidelity takes an appreciable hit here. The rated specs are for the unit in wired mode only as expected, and there is a good 10' of straight distance between the source and the primary unit in wireless mode before things get pretty bad even with the volume at half way. The units are a bit too large to be used as desktop speakers on desks in most cases, but they do excellent sound options for a small den or office as well. The sound signature seems to be mostly flat but there is some adjustment in the bass/treble range to offer enough for most people. Indeed, I tried out a variety of different audio sources and came out impressed. Let's be clear here- this is NOT a set of audiophile monitors, and from initial testing it is not really very frequency neutral either. If you are looking for studio grade monitors then look elsewhere, I am told Monoprice themselves have other suitable offerings here.
Conclusion (for now): The speaker set is priced at $230 in the USA and a lot of this is to do with the various connectivity options included. If bluetooth is not something you plan on using, then realize that you are paying extra for no reason. But if all these options sound good, and the caveats mentioned above are not deal breaking then I would recommend this unit. It is not perfect by any means, but offers enough to distinguish itself in the crowded market of bookself speakers.
PROS: Well priced, good connectivity options, well built, near flat frequency response in the advertised 30 Hz -20 KHz range, 4 drivers in total with an in-built DAC and a 200W (net) Amp
CONS: Build quality could be better, unsuited for most desktop gaming rigs, bluetooth mode results in a big fidelity loss, DAC does not cover the full range of the speaker's frequency output
These speakers were provided by Monoprice for review purposes.
PROS: Sound quality, price
CONS: power/connection turn off issue.
PROS: Decent sounding with an excellent array of possible inputs. I didn't expect the sound to equal studio quality monitors, with which I have experience, but wanted decent sound. I use them in my garage while I am working there and it does the job to my satisfaction.
CONS: I would have liked a little better tone adjustment, like a graphic equalizer. Doesn't remember the last input used so need to change input type after power has been removed. A little pricey but cost was acceptable to me.
I am using the speakers to help with studying. They turn off very quickly. I have to use the remote to turn them back on every few minutes.
PROS: Pros: sound, bass, midrange, tweeter. volume
iPhone bluetooth: great!
CONS: Turns off quickly. Wired better than bluetooth from computer.
But, bluetooth is a problem. Works well with my iphone, but not well with my windows 10 computer. Anyone else have that problem? It pairs, but either one of the speakers does not work or they both don't work. Called Monoprice, but they found that the documentation covered Windows Vista, XP, and 7 but not 10. Hopefully, there will be an update.
PROS: great sound
CONS: bluetooth problems with windows 10
I also tested the $300 Thonet & Vander (Kugel) which I think is a bit better than this Monoprice. Not a knock out. Just a bit better but at $100 more.
PROS: Remote Control, Bluetooth. DAC
CONS: Big footprint, heavy.
First of all these are perfect for a HTPC setup or to use along with a Home Theater set up to listen to your media, watch movies and console gaming. Make sure you have plenty of room when setting these up because they are not small and weigh 28.5 lbs, so these are not to be used on a small desk or TV cabinet. They have a very clear sound and can get to a decent high volume level without losing clarity, however the options to adjust bass and treble are a bit limited. For what I can tell you may be able to adjust both approximately 3 to four levels up or down.
I tested them using the USB connection with my HTPC set up and Bluetooth option with my mobile devices. When connecting to PC it was recognized immediately (plug and play like) and I was able to use without any problems, just remember to select them under playback devices. When using Bluetooth select Bluetooth mode on your (speakers) remote control and a blue light will begin blinking on left speaker waiting for a device to pair up with. On mobile device look for MP Bookshelf and pair, very simple. Also note that the media option for play, forward and rewind is available through Bluetooth option as well.
I did not get to test the RCA inputs since I do not have a device that uses this type of connection(s). Another nice feature is that when changing between audio modes (from Bluetooth, to PC, to normal) a different light color blinks on left speaker letting you know that different mode has been selected. One thing I would have like to have seen is an optical input/output option for these speakers. Other than that I’m very satisfied with them.
Note: For your reference remote controller uses one ‘CR2025’ battery.
PROS: - Great Built Quality
- RCA and USB connectivity
- 44.1 - 96 kHz USB DAC
- Included Remote Control
- LEDs to help identify mode and power up
CONS: - Limited Bass and Treble Adjustment
- No optical input/output option
On the negative side: Bluetooth connectivity is reliable only within 5ft from the computer; at around 10ft you start to get dropouts; at 20 ft it's useless. The remote came with a dead battery. The instructions do not completely match the behavior of the unit.
Bottom line: For the price, not a bad speaker. But it definitely has "issues"
7 months ago
The only thing I don't care for is there's no volume control on the speakers themselves. So if someone loses the remote or it breaks, there's no way to control the volume. As they don't get very loud even when the connected phone is at max volume.
6 months ago