Pay in installments of $396.87 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
RTS DSPK4-D IP 4-Channel Desktop User Station with Power SupplyThe DSPK 4 (Digital Speaker Station) is an IP based version of its wired analog speaker station predecessor, with several key enhancements, such as high quality digital audio and the use of standard Ethernet, making it compatible and versatile to fit into any environment. Building on the versatility, DSPK 4 comes in three different variants: a desktop version, a wall mount version, and a flush mount version. There is a model for every situation. The
The DSPK-4 (Digital Speaker Station) is an IP-based version of its wired analog speaker station predecessor, with several key enhancements, such as high quality digital audio and the use of standard Ethernet, making it compatible and versatile to fit into any environment.
Building on the versatility, DSPK-4 comes in three different variants: a desktop version, a wall mount version, and a flush mount version. There is a model for every situation. The flush mount version comes with 4-pin female, 4-pin male, or 5-pin female front panel XLR connector. The wall mount and desktop versions have all three XLR connectors. Power the DSPK-4 via an external AC/DC power adapter, a DC +24 V terminal block, or by PoE+ / PoE+ + (Power over Ethernet). In addition, you can have peace of mind when powering the DSPK-4 local DC power because PoE+ / PoE++ is ready to take over as a redundant power supply with no interruptions if the unexpected happens.
The DSPK-4 has a full-color TFT display and an iconbased menu interface, which allows for local configuration of essential customer preferences.
Features
- Desktop and Wall Mount devices come with 4- and 5-pin headset connectors.
- Supports connections to an OMNEO Main Station (Digital Party Line) or an OMNEO capable matrix (ADAM or ADAM M with OMI installed or ODIN).
- Features a high-resolution TFT display, allowing user setup and configuration using an iconbased GUI.
- Supports power redundancy from an external DC power supply or the Local +24V terminal block to PoE+ / PoE++
- Supports Bluetooth audio connectivity via Bluetooth enabled USB dongles.
Specifications
- Type of Power Supply: PoE
- Connector: TypeNeutrik etherCON
- Number of PoE ports: 1
- PoE Input: POE+ IEEE 802.3at Type 2, Class 4
- POE++ IEEE: 802.3bt Type3&4, Class 4
- PoE voltage: (VDC) 42.5 to 57 VDC
- Power consumption PoE (W) maximum, typical: 25 W
- External DC Power Supply Input
- Type of power supply VDC
- Connector type Locking Kycon 3-pin connector
- Input voltage (VDC) (maximum - minimum) 24 VDC
- Current (A) 280 mA
- DC Power Terminal Block Input:
- Type of power supply: VDC
- Connector type: Phoenix Terminal Block (Push-in spring connection)
- Input voltage (VDC) (maximum - minimum): 24 VDC - 19 VDC
- Current (A): 280 mA
- External Power Supply:
- Type of power supply: External AC/DC power supply
- Connector type: IEC C14
- Input voltage (VAC) (maximum - minimum): 240 - 100 VAC
- Operating voltage (VAC) (maximum - minimum): 240 VAC to 100 VAC @ 60 Hz to 50 Hz
- Power consumption (VA): 25 VA
- Power consumption (W) (maximum): 13 W
- Mechanical:
- DSPK4-D (desktop user station):
- DSPK4-W (wall mount user station):
- Dimensions (H x W x D) (in): 5.79 in x 9.13 in x 3.94 in
- Dimensions (H x W x D) (mm): 147 mm x 232 mm x 100 mm
- Weight (lb): 2.97 lb
- Weight (kg): 1.35 kg
- DSPK4-F (flush mount user station):
- Dimensions (H x W x D) (in): 5.90 in x 9.13 in x 2.56 in
- Dimensions (H x W x D) (mm): 150 mm x 232 mm x 65 mm
- Weight (lb): 1.62 lb
- Weight (kg): 0.74 kg
- Environmental:
- DSPK4-All models:
- Operating temperature (°F): -4 °F – 122 °F
- Operating temperature (°C): -20 °C – 50 °C
- Operating relative humidity, noncondensing (%): 5% – 90%
- Storage temperature (°F): -4 °F – 158 °F
- Storage temperature (°C): -20 °C – 70 °C
- Storage relative humidity (%): 15% – 90%
- TFT Display:
- Display type: TFT
- Backlight: White LED with adjustable brightness (active and idle)
- Display color: Color
- Display resolution (pixels): 320 x 240 px
- Display size (cm): 6.1 cm
- Display size (in): 2.4 in
- Color depth: 16-bit bpp
- Active viewing area (W x H): 36.72 mm x 48.96 mm
- Display view angle: 80° all direction
- Display protective lens: Anti-glare
- OMNEO Ports:
- Connector type: Neutrik etherCON
- Number of Ethernet ports: 2
- Ethernet type: 100/1000 Mbps
- Audio streaming: Full duplex
- Number of audio channels: 2
- Panel Mic:
- Microphone element type: Electret
- Connector type: 1/4" TRS jack
- Audio input: Microphone
- Nominal input level (dBu): -42.5 dBu
- Maximum input level (dBu): -22.5 dBu
- Panel mic input frequency response (Hz): 70 Hz to 7.4 kHz
- XLR Headset Front (DSPK4-D/DSPK4-W):
- Connector type 6-pin (5-pin compatible): female XLR
- Audio input: Microphone
- Microphone element type: Electret
- Nominal input level (dBu): -42.5 dBu
- Maximum input level (dBu): -22.5 dBu
- Microphone element type: Dynamic
- Nominal input level (dBu): -50 dBu
- Maximum input level (dBu): -30 dBu
- Headset mic input frequency response (Hz/kHz): 70 Hz to 7.4 kHz
- XLR Headset Front (DSPK4-F):
- Connector type: 4-pin female XLR, 4-pin male XLR, or 6-pin (5-pin compatible) female XLR
- Audio input: Microphone
- Microphone element type: Electret
- Nominal input level (dBu): -42.5 dBu
- Maximum input level (dBu): -22.5 dBu
- Microphone element type: Dynamic
- Nominal input level (dBu): -50 dBu
- Maximum input level (dBu): -30 dBu
- Headset mic input frequency response (Hz/kHz): 70 Hz to 7.4 kHz
- XLR Headset Left (DSPK4-D/DSPK4-W):
- Connector type: 4-pin female XLR (Desktop) 4-pin male XLR (Wall Mount)
- Audio input: Microphone
- Microphone element: Electret
- Nominal input level (dBu): -42.5 dBu
- Maximum input level (dBu): -22.5 dBu
- Audio input: Dynamic
- Nominal input level (dBu): -50 dBu
- Maximum input level (dBu): -30 dBu
- Headset mic input frequency response (Hz/kHz): 70 Hz to 7.4 kHz
- XLR Headset Right (DSPK4-D/DSPK4-W):
- Connector type: 4-pin male XLR (Desktop)
- 4-pin female XLR (Wall Mount):
- Audio input: Microphone
- Microphone element: Electret
- Nominal input level (dBu): -42.5 dBu
- Maximum input level (dBu): -22.5 dBu
- Audio input: Dynamic
- Nominal input level (dBu): -50 dBu
- Maximum input level (dBu): -30 dBu
- Headset mic input frequency response (Hz/kHz): 70 Hz to 7.4 kHz
- Headphone Amplifiers (XLR 1/2/3):
- Maximum output power (mW): 80 mW for 150Ω
- Frequency response (Hz): 200-20000 Hz
- Loud Speaker Amplifier:
- Peak SPL at a distance of 1 m (dBSPL): 90 dBSPL
- Frequency response (Hz): 200-12000 Hz
- General Purpose Input/Output Ports:
- Connector type: Phoenix Terminal Block (Push-in spring connection)
- Control ports: 1 GPI, 1 GPO
- Number of relay outputs: 1
- Maximum contact current (A): 1 A
- Maximum contact voltage (VDC): 30 VDC
- Number of optically-coupled inputs: 1
- Bluetooth:
- Mic input frequency response: 70 Hz to 3.4 kHz
- Headphone response: 30 Hz to 19 kHz, 30 Hz to 3.4 kHz
- Version: 4.0
- Approved dongles: IO Gear GBU522
- LM Technologies: LM506
- Range (ft): 15 ft
- Range (m): 5 m
- Audio codec: SBC
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 16 reviews
Sort
Product Reviews
★★★★★ 4
Very nearly the perfect frother for all your basic frothing & mixing needs
Color: Black
There are a lot of middle-of-the-road frothers out there. I've been through a few of them in my recent search for something that could mix and froth well, without taking up any more outlets in my basement kitchen. Of the three Maestri frothers I've tried so far, this one wins the race by a nose.
Most recently, these Maestri frothers come in basically three versions: A single-speed @ 8000 RPM, a two-speed @8000/5500 RPM, and this stepless variable-speed version. Aside from that, the only real difference in recent version pack-outs is which attachments they come with.
Look over the reviews of the single-speed version and you'll find that while it can and does froth well, it starts at a single, high speed and gets there fast. This makes it pretty easy to spin liquid right out of most common cups and mugs.
There is a two-speed version, but it's harder to find, only comes in one color (Grape Purple), and while it's much better than the Maestri single-speed, it still has a couple of quirks that make this variable-speed version win out.
This mixes and froths whole milk, half-and-half, or heavy whipping cream, or just about anything else very well. Like all frothers, it takes a little time to learn its nuances and nail down the technique, this will definitely get you there.
The best feature of this is easily the speed control. Turn the knob to turn it on at a low speed that's great to get things started, then turn the knob to crank up the speed just enough to do what you need, whether that's mixing or frothing. The low starting speed makes it easy to keep things under control without undue spilling, and the max speed is more than enough to make quick work of getting your froth on.
There are really only two complaints I have with this stepless, variable speed version:
- I'd really like to have a Press On / Release Off button in addition to the Speed Control knob. More than one time have I gone to turn this off, only to spin the knob the wrong way and crank the speed up to ludicrous, sloshing liquid on the counter. Being able to turn it Off just by letting go of the button would be quick and easy. This configuration would allow using a preferred speed right from the start, while still allowing speed to be adjusted on-the-fly when needed.
- Give it a bigger battery. It would cost mere pennies to give this a 2000mAH+ instead of a 1200mAH battery, and I can't think of any reasonable downside to that.
- Give the motor a little more torque. It's fairly easy for the current motor, at any speed, to get bogged down in a thick protein powder mix, or when pressing the frother or other attachment a bit too hard into the bottom or side of the frothing container. A bit more "oomph" would prevent that.
I really like the overall design and features of thes Maestri frothers better than many other, cheaper versions. This variable-speed version is pretty great as it is and probably the one I would recommend over the single- or two-speed, for most people. But I often find myself using two hands -- one to hold it steady, and the other to turn it on and tweak the knob to the desired speed(s) -- for a device that should arguably need only one hand to use. Just a couple of minor tweaks as noted above would make this the overall best frother of its type that I've used.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2025
★★★★★ 5
Hands down, the BEST handheld frother I've ever used!
Color: Black
Hands down, the BEST handheld frother I've ever used! I got the black one, but any color will have the same results.
Over the past 12 years or so, I've used so many different handheld frothers and they've ALL fallen short of expectations for quality, longevity, power, features, and usability.
I've used everything from cheap, $15 models to $50+ models and everything in-between. Some with fancy attachments for various types of mixing, frothing, beating, whipping, etc. Some with rechargeable batteries, some without. Some AC powered, some with fixed whisks, some with detachable/replaceable whisks, some with stands, etc. NONE have been spectacular. Most broke within 6 months and got tossed. ALL were major disappointments in the end, including the "revered" Zulay models of which I tried several.
I finally found this Maestri House branded, variable speed frother with detachable / replaceable whisks and got one to try. I was literally on Cloud Nine the first time I turned it on. Like, WOW! Not only was it FAST on the highest speed, but it was powerful enough to churn right through milk, eggs, cream, etc, without bogging down like many others.
This thing makes milk froth like a milkshake and Matcha Lattes like nothing else I've ever experienced. I used to have to sift my Matcha, then whisk it in hot water, then froth milk and then blend them together to make the perfect latte. and if the milk was cold (my preference), pre-whisking in hot water was a must to avoid lumps. However, with THIS frother? I literally pour my milk into a tall tumbler, drop in un-sifted Matcha powder, and spin up the Maestri House frother at first on a medium low speed to get it mixed, then jump straight to the highest speed to really whip that milk and match up. After about 30-45 seconds, I've got the thickest, richest, smoothest, most aerated latte around. And NO LUMPS at all!!! What a time and dish saver!
And cleaning? I just run it under hot running water to get the shaft cleaned and then spin it up in a dish with hot running water for a few moments, then spin it on high for a few seconds in the air to dry it off instantly.
Now, I'll be honest here, too. The specs say it can go months on a charge, using it for a couple minutes a couple times daily. Well, I guess it could do that and still spin. But I use it FULL SPEED, churning hard for at least a minute a couple times per day. After about 2 weeks, I can start to notice a speed reduction so I just plug it back in on the charger. All things considered, this is still better than all the other handheld frothers I've used over the years.
After using the heck out of this thing for the past 7 months, I've even decided to start selling these in our Japanese gift shop. The manufacturer is has been very responsive both in customer support (I called them about an issue I thought I was having, and they called me back with a couple hours even though I didn't leave voicemail when they didn't answer right away) and in reseller support. I have to give these guys an A+ for responsiveness and quick resolution when problems might arise.
HIGHLY recommended!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025
★★★★★ 5
Great Addition!
Color: Black
Why did you pick this product vs others?:
I just started a powdered drink routine recently and was having a difficult time mixing it with water. I would consistently end up with small nuggets of mix making it unenjoyable to drink. I knew I needed a mixer and was glad I found this device when I did. It works perfectly! I like the fact that it comes with its own stand and included two mixing heads. It is solid, well-designed, and you can feel the quality when you pick it up. The variable speed of the mixer is perfect for ensuring that everything is blended well. I haven’t used it to “froth” anything yet, at least not on purpose, but I accidentally found out that it can do that well. This is a great addition to our kitchen and is very easy to wash after use. So far…no issues. Highly recommend for those of you looking for the right tool to make sure those protein mixes aren’t full of unmixed nuggets.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 21, 2025
★★★★★ 4
Low foam
Color: Black
Love this frother. It is great quality and the turn speed is amazing. My only issue is this. It comes w 2 wands and they are both singles. The single is great for stirring things up. It does not make a lot of froth and for some things it’s perfect but sometimes I like a lot of froth and I wish it either came w a single and a double or you could purchase a double separately to intermix. I don’t want to buy a whole other unit just for the double. I wrote to them bc the double frother they sell doesn’t look as good as this one but sometimes a girl needs a lot of foam and sometimes th stirring is perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
★★★★★ 5
Better than most
Size: 2.0
This WGT is one of the better ones on the market, but it isn't the best. But then again, the best comes with a hefty price. From the number of WGT's in my arsenal, this ranks right up there with the ones I have or could consider. The holder (magnet) is a little above average. Meaning it will hold the WGT without fear of losing it. It comes with extra needles, which is, if you ever used one, come in handy. It is fully adjustable so you can set the needles to the correct width when stirring the grinds. Small yet practical. The perfect size and shape for starting your coffee out right. This one in particular I use for the finer grinds as the needles can agitate them more effectively. Courser grinds not so much. Come cleaning time, this cleans rather well and simply hanging it back up will facilitate drying. Overall? Good choice for the beginner or professional alike. Solid, well designed, and perfect for almost any coffee use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2025