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17.11.2021, 11:46 Uhr

With the new Acoustic Energy AE 320 floorstanding loudspeaker, we are expanding the portfolio of the AE 300 series, which was successfully presented in 2018. The AE 320 as a real 3-way loudspeaker is flanked by the excellent floorstanding loudspeaker AE 309 and the compact loudspeaker AE 300.

The slim floorstanding loudspeaker AE 320 with its compact dimensions is ideal for medium and large rooms. Three 130mm woofers or mid-range speakers made of ceramic-aluminum of the latest generation are used for the best sound quality. The specially developed chassis are characterized by dynamic, powerful reproduction with improved radiation behavior, precise bass and very good efficiency.

The 28mm aluminum tweeter offers high efficiency and low resonance to reduce distortion. However, the main advantage of this new development is the radiation behavior. The coupling of the midrange and the tweeter thus offers a wider sweet spot in your listening environment.

The stable 18 mm tight MDF housing consists of patented housing reinforcement, which is derived from the excellent Reference series. The aim is to reduce the housing resonances and to create a stable sound image in the room. The result of the latest chassis technology and the housing construction is a slim, dynamic, powerful loudspeaker with excellent sound quality and optical elegance for the discerning film fan and music listener.

The available colors: high gloss white, high gloss black and walnut veneer

Ready for demonstration, please make an appointment. Thanks very much.

Acoustic Energy Standlautsprecher AE 320 Walnuss

Acoustic Energy Standlautsprecher AE 320 Hochglanz SchwarzAcoustic Energy Standlautsprecher AE 320 Hochglanz Weiß



23.04.2021, 16:00 Uhr

The Hegel V10 is a brand-new take on an old technology. With 30 years' experience designing state-of-the-art discrete transistor circuits, we have built a phono preamplifier like no other. It is neutral, dynamic, and exceptionally revealing. We have used all our knowledge in amplification and applied it to one goal - To reach down into the record and reveal every bit of information. The V10 is designed to capture the sound. To get you closer to the music. To get you into the groove.

Hegel V10

Listening to vinyl is a tactile experience. You carefully open the album jacket, remove the record from the inner sleeve, inspect for dust or scratches, place it on the platter, and slowly let the needle drop to let the sound out. It is all about you and your music, selected for exactly this moment. With the V10 we aim to make this special experience even better. Developed from the ground up and utilizing truly clever and unique technologies, the V10 will give you an unprecedented transparency and soundscape - Making the music you hear as tangible and real as the record it is pressed into.

Hegel V10

We achieve this because everything on the V10 is designed with the sole purpose of making your music sound as good as possible. The chassis is divided into two compartments, physically separating the power supplies from the sensitive amplification circuitry. There is simply no detectable interference between the two parts. For the best possible connection, we have fitted the V10 with gold-plated terminals, balanced XLR outputs, and a solid custom grounding screw. On the all-important input stage, we have used ultra-low-noise discrete JFET transistors for both the Moving Magnet (MM) and Moving Coil (MC) input. Eliminating external noise is especially important when using sensitive low output MC cartridges. That is why we have fitted the MC input with four such transistors connected in parallel. Making the input completely silent and stopping any bias current feedback to the cartridge coil.

Hegel V10

The input signal feeds into equally silent amplifier circuits, where both the MM and the MC gain stages use ultra-low-noise power supplies built with discrete bipolar transistors to keep the signal noise at a minimum. This ensures an extremely accurate amplification of the input signal coming from the turntable. And to make sure the V10 gets the best operating conditions, it is supplied with a linear, low noise, analog AC-power supply. This features a large, custom design, E-core transformer, placed in its own housing to eliminate all possibility of interference. For us it has been particularly important that all vinyl enthusiasts get to enjoy the V10. So, out of the box it is configured as an excellent plug and play MM preamplifier. For many, this is exactly what they want and need, but some want even more. That is why we made the V10 highly optimizable, catering to individual preferences and requirements in set up, the V10 can be adjusted for any MM and MC cartridge.

Hegel V10

When using a MM cartridge, you can freely increase the Capacitance between 100 and 467 pF and when using a MC cartridge, the impedance can be set freely between 33 and 550 ohms or fixed at 47 kohm. On both MM and MC, the gain can be increased by 5, 10 or 12 dB, matching the output of your other sources, the V10 even has a Subsonic Filter to remove unwanted low frequency noise. And at the end of the night, when the listening session takes you way past bedtime and you forget to turn off the V10, the adjustable auto standby function does that for you. All this makes the V10 the perfect companion for your vinyl setup. Finding the perfect synergy between your system and your listening preferences. Transporting you into the groove.

Technical Specifications

Amplifier Typology: Ultra low noise discrete JFET transistor input stage for both MC and MM
Gain XLR Out MM: 40dB / 45dB / 50dB / 52dB
Gain XLR Out MC: 60dB / 65dB / 70dB / 72dB
Gain RCA Out MM: 34dB / 39dB / 44dB / 46dB
Gain RCA Out MC: 54dB / 59dB / 64dB / 66dB
MC Load Impedance: Freely adjustable between 33 and 550 ohm / 47 kohm
MM Load Capacitance: 100pF / 147pF / 220pF / 247pF / 320pF / 420pF / 467pF @ 47 kohm
Subsonic Filter: Switchable on / off, -3dB at 20Hz, -18dB octave
RIAA Accuracy: +/- 0,2dB / 20Hz - 20kHz
Output Noise*: -84dB/MM ("A" weighted ref: 0dBV), -81dB/MC ("A" weighted ref: 0dBV)
Output Impedance XLR / RCA: 200 ohm
Channel Crosstalk: -84dB @1kHz 0dBV
Frequency Response: 2Hz - 20kHz
Distortion (THD) MM: < 0.005% @1kHz 0dBV
Distortion (THD) MC: < 0.009% @1kHz 0dBV
Inputs: 1 x unbalanced (RCA) MM, 1 x unbalanced (RCA) MC
Outputs: 1 x unbalanced fixed (RCA), 1 x balanced fixed (XLR)
Power Adapter: Hegel Power Adapter M30103
Dimensions with Feet: 6cm x 21cm x 28cm, 2.4" x 8,3" x 11" (H x W x D)
Weight: 2,2kg / 4,9lbs unit weight
* When stable operating temperature has been reached





18.02.2021, 15:34 Uhr

The AE520 loudspeakers are tall, slim floorstanding loudspeakers with carbon fiber membranes or domes in all chassis. There are many of them. A 25 mm carbon fiber dome tweeter processes frequencies above 2,800 Hertz. It is equipped with a waveguide "for optimal radiation". There are 125 mm carbon fiber mid-range speakers above and below the tweeter. They cover the range from the unusually specific 373 Hertz up to 2,800 Hertz. Bass is generated by three additional 125mm carbon fiber cone drivers stacked in a column in the lower half of the speaker's baffle. The drivers are each equipped with an oversized 35 mm voice coil to ensure low thermal compression and very high dynamics. The two mid-range speakers each have their own sealed housing for acoustic isolation from the woofers. There are two circuit boards for the crossover network in each loudspeaker, with the components for the bass range being on a separate circuit board. This is intended to minimize crosstalk between the components. The coils are all air-sealed to avoid distortion. The case is only 185 mm wide, but an impressive 1,130 mm high and 320 mm deep. The cabinets are constructed very heavily - each speaker weighs 30 kilograms - with the resonance suppression composite (RSC). This consists of a 9 mm MDF outer wall and a 6 mm MDF inner wall, both of which are glued to the 3 mm thick bitumen layer in between. The construction is inert and stands on solid aluminum rods that taper to a point. The frequency response of the AE520 floorstanding loudspeakers is 30 to 28,000 Hertz ± 6dB, their sensitivity at 90dB, their power handling at a massive 300 watts and their nominal impedance at 6 ohms. The peak level is 113 dB.

Available in high gloss white, high gloss black or American walnut veneer. TO LISTEN at the HiFi Forum Michael Preul. RP, € 4000,00



02.01.2021, 13:14 Uhr

Today, ARCAM unveiled the ST60, a launch that marks the Cambridge maker’s debut dedicated network player. Enabling audio streaming from all of the major services – including Deezer, Napster, Qobuz, Spotify and TIDAL – the ST60 is the perfect companion to any stereo amplifier, including one of from ARCAM’s own HDA series of award-winning two-channel audio engines.

The ST60 delivers the absolute best experience from your digital musicworking with Air Play2 and Google Cast.  It fully decodes MQA, is Roon Ready and handles UPnP sources. Under the bonnet, the ARCAM engineering team deploys the ESS9038 32-bit/192kHz stereo DAC. From the impressive ESS SABRE DAC line – widely recognized as the gold standard for audiophile DACs – as well as MQA, the ST60 supports AIFF, ALAC, FLAC and WAV along with compressed legacy formats. The ST60 will also deliver full IP & RS232 control, including Control4 and Crestron, making it the latest go-to ARCAM model for custom install blueprints.

Connectivity is thorough. Digital interfaces comprise Ethernet, USB, and Wireless, and the ST60 package includes dual Wi-Fi antennae. The ST60 rear panel hosts Balanced XLR and single-ended RCA analogue outputs, plus coaxial and optical digital outputs, giving users a comprehensive choice of paths, with which to connect their ARCAM streamer to their chosen amplification.

Controlling the ST60 is effortless. Google Chrome Cast enables streaming from Android tablets and smartphones, iPhones, iPads, Mac, Windows and Chromebooks, while AirPlay2-compatibility delivers full support of Apple’s latest version of its wireless streaming protocol. The ST60 remote control places further jurisdiction into the user’s hands and ARCAM’s MusicLife app, enabling control of music stored on supported devices and network drives, is free to download from Apple’s App Store and the Google Play Store.

“ARCAM’s experience with digital audio goes deep,” said Nick Clarke, Senior Director, Global Engineering Luxury Audio. “We have been making CD players for almost 30 years, and ST60 design journey saw the team apply this extensive experience into creating a truly high-performance digital music source. Of course, ARCAM is also rightly recognised for its excellence with amplification and the ST60 is the perfect partner for our amplifiers, old and new.” 


ARCAM Introduces the ST60, its First High-Performance Music Streamer


15.12.2020, 15:56 Uhr

From December 10th, 2020 to January 10th, 2021 I will be available for you as follows. 

Tel. 0049- (0) 6897-9661130

Cell. 0049- (0) 172-6800245 


Advice by phone and email. 

The ordered products can be picked up and home deliveries are even better. Just by appointment, please.


I wish everyone a Merry Christmas, all the best for 2021 and stay healthy. 

Michael Preul with his team.

The HiFi Forum Michael Preul is moving

29.08.2020, 12:57 Uhr

After 38 years in the heart of Saarbrücken, I am moving to 66125 Saarbrücken - Dudweiler,

Karlstrasse 23. I look forward to seeing you from October 1st, 2020.

Concept change. Instead of fixed opening times, I will provide advice, service and installations

only offer by appointment. For the first time with a single storey shop in a quiet location and parking spaces from the front door.

Well-known manufacturers follow me: Acoustic Energy, Arcam, Avalon Acoustic, Bridge Audio, Cardas, Esoteric Audio, Hegel, InAkustik, Jeff Rowland Design Group, KEF, Rega, Transparent, Verity Audio, Accessories and many more.

Over 25,000 records await you, both used and new. records that are not in stock will be ordered and shipped on request.


Hifi Forum Michael Preul, Karlstr. 23, D-66125 Saarbrücken, Tel. + Fax 0049-6897-9661130,



Opening times during the company holidays. 13.09 - 25.09.2021

03.05.2018, 11:17 Uhr

Monday, 09.13, 21: 2 p.m. - 6 p.m.
Wednesday, 09.15, 21: 2 p.m. - 6 p.m.
Friday, 09.17, 21: 2 p.m. - 6 p.m.
Saturday, 09.18, 21: 10 a.m. - 2 p.m.

Monday, 09.20, 21: 2 p.m. - 6 p.m.
Wednesday, 09.22.21: 2 p.m. - 6 p.m.
Friday, 09.24.21: 2 p.m. - 6 p.m.
Saturday, 09.25, 21: 10 a.m. - 2 p.m.

Please make an appointment. Thanks very much.