NEW ELTIM products
20 June 2018
More than once we were asked if we could build amplifier modules in "ELTIM style" with the very well klown and behaving LM3886 amplifier IC of Texas Instruments. After some investigation we found out that there are a lot of those, all very cheap, small and using cheap components. If we wanted to do it as requested, we needed to use way better parts and PCB's. This results in higher costs..... After some thinking we decided to go for it and designed several modules with this LM3886, as with our other Amplifier modules available with different power supply capacitors:
While concentrating on that, we also found it's brother, the LM 4766, beiing a stereo version (2x 50Wrms, 8ohms only!) and made similar ones with those as well. You even can combine all modules from both ranges in a compact pack and even add a "booster" pack containing a group of extra power supply capacitors. Both versions are available for connecting to a power supply, but there are also versions with on-board power supply where you just have to connect a transformer. Now we hope you will follow as well and buy these nice sounding amps. Price is higher than on Alibaba/Ebay, but the sound is way better and they last forever. ELTIM style, as requested -) Extra info dec. 2018: they are a hit already, thanks.
17 March 2018
We finished developing a wide range of switching DC/DC voltage converter/regulator modules. With these modules you can extract energy from about any supply source (even boat/car battery) and convert/regulate it into the known low voltage supplies 3,3V; 5V; 12V or 15V or symmetrical and even mixes of them in an energy efficient way. Suppose you have 60V already available for your class-D power amplifier. Hook up one of our switching modules and you also have f.e. ±15V for a preamplifier/DSP AND 5V for digital circuits available. We have all versions with a screw terminal and with headers, fitting most of our Power Supply modules directly.
We only use the very high quality, professional XP-Power modules with 800kHz switching frequency and efficiency around 90%.If there is space left on the PCB we also mounted RF filters resulting in absolute clean sulppy voltages.
Here our first built model: 9-36Vdc in, ±15Vdc (0,33A) AND 5V (4A) out. Fits on most ELTIM Supplies!
12 March 2018
We now modified our PS-UNxx universal Power Supply modules for high power purposes and all have a square shape now. They all can be mounted over a corresponding type of transformer. Due to the extra PCB space we were able to mount more, and more types of capacitors than before. We also modified them in a way that besides our linear functioning Voltage Regulator modules, also our brand new switching DC/DC converter/regulator modules will fit. WIth these, you can extract low voltage (even symmetrical) Supply voltage(s) from a high voltage system without significant energy losses. Also, the output(s) are regulated as single, double or triple supply voltage(s).
5 March 2016:
In our never ending search for new and innovative electronics, we recently found Amplifier Power IC's, by CANAAN Semiconductor. New Class A, with Mosfets in the powerstage.Ideal and small amps for (high quality) headphones, PC speakers, etc. We have them with and without integrated Power Supply part:
13 september 2016:
We developed a range of volume control/buffer modules, forming the heart of f.e. our own preamplifiers.
Attenuation/gain can be set by a 0-4,8Vdc signal and/or by SPI serial data.
- VCA-2181x, three models in reference quality, using the higest quality parts and fully seperated channels.
- VCA-2180x, three models in High-End quality, using very good quality parts. Seperated VCA's.
- VCA-2162, a more cost effective version with dual channel VCA and buffer IC's.
All connections of all modules are the same, so they can be exchanged. You can even use the same software.
13 August 2017:
Our prototype monoblocks based on CS-40ps RQMB modules are running a few months now in a normal living room environment, just as you probably would use it. From the start they are running perfect and last week we finished them with the mounting of our Bin/Lout-1200 balanced input circuits.
Both models are also available in ready built monoblock amplifiers. We decided to release the CS-40ps RQMB and HRQ versions today, on Louis' birthday 13/8 -).
At first we believed power would be limited because of the quite small cooling surface of the cabinet, yet even while running the small RQ version at around 200W@4ohms they only get hand warm, even with a way higher idle current as we recommend in our documents.
8 August 2017:
Our ELTIM amplifier module CS-40ps HRQ is reviewed against HYPEX NCore by Uniqueradio.nl (in Dutch):
Some will be surprised about the outcome -) LT
14 october 2015:
We found out that there is a lack in availability of (quality) symmetrical Power Supply modules.
Find them now with integrated Talema 700000 series potted toroidal PCB transformers in a range of 5-25VA under ELTIM Ampifier modules/Power supply modules/PS7xx ! Very low magnetic field, hum and noise rates due to fully equipped PCB's.
We only use high grade components like PANASONIC FR (10.000 hours @ 105ºC) capacitors, small caps over the rectifier diodes, etc.
If a regulated symmetrical voltage is required, you could add on of our VR-modules (as in the picture blow) to it. VR3 and VR-4 are adjustable. So, with these you even could make a small (±1,5A max) , symmetrical laboratory Power Supply !
In similar way, we also made more regular single voltage variants. With these you can add a 317 (TO220) Voltage regulator, incl. heatsink and extra parts. In that case there is an adjustable voltage available as well.
Due to the low profile toroidal trafo's, height is only 23-28mm, so you can even use them in 40mm casings.
21 August 2015:
In the little time we have in these busy days, we finally managed to built our DEMO amplifier, a A2300 HRW model with 16A EXICON Mosfets. Every time again it is nice to watch and hear a product from your ow hands coming alive and rewards you with a fantastic sound. But then again, who am I ??
Next week Bert Oling of oldest dutch magazine HVT will review it. Other reviewers are most welcome. Soon it's your turn, but you have to line up by now...... € 200,- downpayment required.
A2300 HRQ with 2x CS-40ps HRQ, 2x VS-20 (and MCap250-2,2), 2x VR-3/30, 2x 160VA/ 2x 30V trafo's and Kacsa connectors.
Last week mr. Bus built this also in one weekend after buying built and tested modules.
17 August 2015
It appeats that some of you dislike the Mundorf Mcap250 as we use as input capacitor on the VS-20 modules. Although we mention it in the corresponding document you can use the DC-input of any VS-module and connect ANY quality capacitor you like, hardwirded to the RCA input and DC-in connection of any VS-module. In that case the already on board capacitor is NOT used and so NOT in the signal path! We used this cap in order to allow people to buy an affordable VS-module and at the same time, allow people who want to spend more money and/or prefer an other input capacitor to do so. Since we have to take in mind that the VS-20 can be mounted in all cases, we can't mount a bigger one either. Perhaps later, a VS-30 module? Similar to VS-20, but 50mm instead of 35mm high probably. Let us know BUT, the comments you can read so far, are with Mcap250........ So what more is there to dig out from the bottom of your music data????
Please take in mind that you CAN mount any high quality capacitor this way on our IO-modules, like in the picture below where a Mundorf EVO MESGO-2,2uF is mounted. Connect it to a side of our CS/VS-combination and use some short wires to connect the connectors to it.
Actually, if you are sure that the input signal is free from DC, there is no input capacitor needed and you can use INdc anyway. Our amps work from DC - 350kHz.
If you are using a balanced IO-module there isn't any capacitor in the audio line, from input to speaker output!
1 july 2014
Our own and first amplifier modules are ready for sale now. Dealers and OEM are most welcome as well