M.C. GATTO welcome to the SynthZone Forum. You've come to the right place for finding info on Arranger Keyboards.

Ketron makes a Module in the XD3 and the X4. The XD3 focuses mainly on Accordian type sounds and it would be a great Module if you play[ed] the Accordian. There are other sounds on it of course. It has 64 note Polyphony, 32 Multitimbral, Live Drum Kits, etc. It does 'NOT' have a Digital Output. The X4 also has 64 note Polyphony plus you can add SIMM Memory to expand the Sequencer's recording note[s] limit. It is also 32 Multitimbral. I noticed Ketron's web site does not have a Brochure in English so I translated the Italian Brochure for you. Here is the translation of the X4 Module:

"X4 comes installed l?unità Vocalizer (optional), one of the two microphones can control l?unità Vocalizer while l?altro it can work normally: situation this ideal for a duetto. The Vocalizer é endowed a professional Harmonizer to 3 Voices of un?ampia range of the 16 completely programmabili vocal effects all?interno of Vocal Sets available: Trio, Duet, Unison, Harmony, Vocoder, Falsetto, Baby, Alien, Gorilla, Mickey Mouse, Rapper and many others. L?effetto can be assigned is to the section Song that all?Accompagnamento automatic rifle, for which function Vocalize to Arranger is previewed also l?utilissima that allows to assign various vocal effects to the several sections dell?Arranger. The Vocalizer interprets all correctly the Midifiles programmed with Vocalist trace, with the possibility to block interested the Midi Channel all?harmonizer. The Vocalizer card concurs moreover one separate equalization for the direct Microphone and l?effetto harmonizer, with controls of Filter to 3 bands (Low, Mid, Hi), Pan/Pot, Frequency, Resonance, Formant, Riverbero and Delay. The Simm inner Ram dell? Structured X4 é on two sections separated from 8 Mbyte ciascuna, one for the Sampling and l?altra for the premanifactured Sound Banks of the Bookcase for Ketron X4, X1 and X8. The Sampling section is connected all?Ingresso of the microphone of the instrument and concurs a sampling of 16 professional quality with Bit and 44.1 KHz. The champions, in Wav format, can be editati and therefore Sound personalized Library saves sull?Hard Disk to you in such way to create one. L?editing previews advanced functions of Loop, Reverse, ADSR, Filter, Shift, Tune Aim and allocation Effects. With function MSP (Multisampling) Splits can be defined until 8 new Program Changes every compound from 32 multiple Samplings until. PROGRAMMABILITÀ BEEN LEFT OVER the Ketron X4 is equipped of a powerful Sequencer from 36.000 notes/16 Traces (expandible to 300.000 notes with 4Mb of Simm), that it allows to create sequences originates them or to copy and to modify preesistenti sequences or Midifiles. They can be programmed in the inner memory until 99 Patterns (198 if it comes installed optional l?Espansione 2Mb Flash), with recording of the single parts in real time or via Midi and with sophisticated functions of Editing much. The section of the 128 User Voice also allows to editare all Sounds PCM, Analogic and FM of the instrument for means of several functions which ADSR, Filter, Volume, Shift, Resonance and new and personalized LFO in order to create sonorità. Programmabile section for the Drum Sets with the new 4 possibility exists moreover one to create until User Drum Sets (in adding to the 20 Drum Sets inner). COMPUTER L INTERFACE? X4 is equipped of a taken Computer Interface which concurs to connect the computer instrument also (PC, Mac). Through an optional cable and a specific Software to install on the computer, the X4 is in condition for sending and for receiving regarding information the Midi and all the others files of management of the instrument which Styles, Programs, Registrations, User Voices etc. Moreover such connection can serve in order to carry out on computer one copy of backup of the data dell?Hard inner Disk dell? X4. CONCLUSIONS our objective is that one to always create the best instrument possible in order to make music, thanks to un?instancabile search in the sound and one particular attention to the necessities of the solisti musicians. L? X4, we are convinced some, constitutes a meaningful step in ahead in the field of the contemporary Arranger modules and it will not lack sure to offer new, stimulating emotions to all it gets passionate interpreters to you of music from the alive one. Functions keyboard Polifonia Sound Source User Voices Sound Card (optional) Sound Ram Factory Styles Stiles Custom Drum Mixer User Drum Set"

They do have an English 'Manual'. Here is the link to the main Arranger page. You may have to scroll to get to the X4. Click on the "Manual" link to bring up the Window for downloading it. You will need a PDF Reader on your Computer, eg., Adobe Acrobat, to open and read the Manual file. Here is that link: http://www.ketron.it/prodotti/index.asp?idTipo=2 PS: I have no idea what the X4 costs.

As to the PSR 2100 and the Technics KN2600, I have played both personally and both are good Keyboards. Both have 64 note Polyphony. The Technics uses SD Memory, ie., "Secure Digital" Memory on the KN2600 which is a good feature to have for saving your Recordings, Midi's, etc. The sounds on the KN2600 are pretty good. Some of the Organ sounds are a little weak 'thin' but overall the sounds are fairly decent. Although the internal Speakers on the KN2600 have more 'Watts' of power they actually do not sound as good as the PSR 2100's internal speakers IMO. The Volume is also lacking. Full volume is not really that loud on the KN2600 considering it has 2 x 20Watt speakers. They both have USB connectivity. The PSR 2100's Flash ROM Memory is miserly -(1.5mb) compared to the expansive SD Memory Cards. The PSR 2100 has a Floppy Drive though whereas the KN2600 does NOT have a Floppy Drive. But you wouldn't need it since you have the SD Memory capability.

Neither the PSR 2100 or KN2600 has Hard Drive capability. But then again the SD Memory Card capacities are up to 1 GB in size and pretty soon they will be up to '8' GB's in size so essentially it IS a Hard Drive. Also the KN7000 has SD Memory and you can even use the SD Memory for loading and playing not just .Wav files, etc., but MP3 files as well. I think the same thing is possible on the KN2600 but I could be mistaken. Call a dealer to confirm this if you have questions regarding this and other features.

Now here's the Kicker - you will pay 'several' hundred dollars "more" for the KN2600. Something like $500 more. If you don't mind spending more it really is a toss up as to which board to get. Both are good Boards but I think the PSR 2100 has better quality sounds in it overall compared to the KN2600. But the KN2600 has SD Memory capability which is a 'huge' advantage over the PSR 2100's 1.5Mb Flash ROM Memory. But again, the PSR 2100 has a Floppy Drive of course so it essentially has unlimited Storage too but with the KN2600 you wouldn't have to keep putting in and taking out Floppy Disks which can be a hassle sometimes. Decisions, decisions.......

Best regards,
Mike