B175 Plus Integrated Amplifier

Our reference integrated amp is filled with advanced solutions which all share the goal of giving you even more musicality and flexibility.

The B-175Plus is the most powerful integrated amplifier ever from Densen, but despite that preserves an unprecedented attention to detail and nuance in its delivery.
From the first look on the B-175Plus it is obvious that the B-175Plus is something special in the Densen family. It has the fascia of the B-250 preamp, and combines this with the brute and forceful cabinet of the B-350 mono block with its recessed heat sinks, required to cool down its awe-inspiring power.
The B-175Plus is known to have devastating effects on customer’s sexual life, only restoring this to normal in cases of power breakdowns.

The B-175Plus is the pinnacle of integrated amplifier from Densen. Not only does it sound amazing, it’s also filled with the best of Densen audio design.
。Relay controlled volume attenuator with 200 steps (0.5 dB)
。140.000 µF capacitor bank made with custom Densen capacitors
。Powerful 800 VA Torrodial power supply which is encapsulated in order to isolate the main PCB from vibrations.
。Expansion port for DP-07 phono board – turn your line-1 input into a phono-input – or future upgrades (DAC, Surround, streaming)
。THD + Noise @ rated output: Less than 0.05 %
。Smooth power delivery by use of 10 voltage regulators
。Designed in Denmark – Made in Denmark

From the first note of a piano the B-175 just oozes control and musicality. When the music becomes more complex, it becomes obvious that the B-175 possesses the qualities to not only control the performance, but actually let it flow so freely that you can just delve into the music and forget time and place
The B-175 merges the technology of Densen’s 2 current top of the line products; the B-250 preamp and B-350 mono blocks in one cabinet. Naturally some corners have been cut, to shoehorn such advanced products into the cabinet and budget of the B-175. However as always with Densen, the design choices have been made on a purely sonic ground. The performance of the B-175 is therefore outstanding, and belies its modest price. 

The B-175 delivers 2 x 125 w in 8 ohm, and 2 x 250 w in 4 ohm, and does this with an ease and control, that must be heard to be believed. The large recessed heat sinks, allows for the amplifier to run with a high bias, thereby securing that most power in normal listening conditions are delivered in Class A. The power supply is made with a toroidal transformer, encapsulated for isolation of vibrations to the main PCB, and with separate outputs to all critical stages of the power and preamp sections of the B-175. As always with Densen, it contains custom made capacitors made especially for the circuit in which they are used. No less than 15 custom made capacitors is used in the power supply of the B-175. Further to that, for the first time ever in a Densen amplifier, there is used Densens own film capacitors. These film capacitors are the result of a long research of the behaviour of capacitors in critical paths of amplifiers. As such they are tailor made to the way Densen designs amplifiers, to give a performance not even found in the most well respected audiophile capacitors offered by other capacitor manufacturers. 

The B-175 contains no less than 10 separate voltage regulators, many implemented as SMD voltage regulators, placed close to where the power is needed, thereby securing a smooth power delivery, to each critical stage of the amplifier. The actually power amp design of the B-175 relies on the B-350 monoblock design, but with a few adjustments, to optimise it for its working conditions in the B-175. The power output is transferred internally from the power amp to the speaker terminals using a custom made cable, which is silvercoated copper with an isolation of Teflon. This cable was first used in Densens DM-10 amplifier, and now sees its rebirth in the B-175, securing a unsurpassed signal transfer. 
The pre amp is based on the Densen reference pre amp; the B-250. As such it is a pure class A pre amp, with an advanced microprocessor controlled attenuator. In these times, digital volume controls are often used in even high end amps. However digital volume controls, typically contains over 500 components in a compact microchip, with all the complications this means to the tiny vulnerable audio signals.

On top of that, digital volume controls typically has poor performance at low attenuation levels, which is where they are often used in normal listening conditions, where they will have high distortion and time related distortions, resulting in listening fatigue and lack of transparency and details. Densen has therefore never used digital volume controls on any their products, instead opting for an advanced ultra precise attenuator. This attenuator is implemented with the use of Vishay 0,1% laser trimmed metal film resistors, giving a transparency and accuracy that is outstanding. Further the attenuator is calibrated by the user, by an interface with the amplifiers microprocessor. This means that the microprocessor that takes care of the B-175s display, remote, and input selector, also takes care of the calibration of the attenuator to the listening level desired by the listener. The calibration is done in 0.5 db steps, allowing a high resolution, securing that the listener can always reach their desired listening level. 

Further the microprosessor controls the B-175s option of installing a analogue surroundboard, which is a board that expands the B-175s pre amp to a true 7+1 analogue pre amp, securing a precise and straight signal path for users who wants to upgrade the B-175 with a DVD with 5+1 or BluRay with 7+1 analogue output, and with further power amplifiers to control all speakers in either a 5+1 or 7+1 system. Audiophiles wanting to use the B-175 with a gramophone can convert on of the B-175s line inputs to a MM RIAA input by the purchase of a dedicated phonostage to insert in the B-175. Naturally the B-175 has the option of adding Densens advanced 1NRG external powersupply. 

Finally the B-175 contains a socket for Densens advanced SAXO electronic crossover, resulting in the possibility of upgrading the Densen B-175 with several Densen poweramps and SAXOs to allow for true active performance in a high end system. 
Soundwise the B-175 contains the best of Densen; the fast engaging sound, the smooth detailed presentation, with a flow and transparency that must be heard. The precise soundstage, with lifelike depth, width and hight. The stunning detail level, that is a presented in a way, as not to take the attention of the sheer musicality of the B-175.

Specs & Features
。Power output in 8 ohms: 2 x 125 W
。Power output in 4 ohms: 2 x 250 W
。3 – line inputs + 1 tape in/output
。1 pre-amp output for bi-amp wiring
。Processor-loop for use as power-amp in a home-theater setup
。ERP-input for use with external Densen powersupplies (1NRG)
。Expansion port for use with expansion modules (Surround board, DAC boards, streaming boards)
。Internal DP-connector – connect a DP module and turn line 1 into a phono input (DP-07 MM module)
。Gizmo system remote compatible
。SAXO compatible
。Power supply size: 800 VA
。Storage Capacity: 140.000 µF
。THD + Noise @ rated output: less than 0.05 %
。Frequency response: 2 - 500.000 Hz
。Weight: 14 kg
。Dimensions (W x D x H): 440 x 310 x 64 mm
。Designed and Made in Denmark