Octave HP 300 SE Vacuum Tube Preamplifier

6600,00 

The Octave HP 300 SE is a enhanced version of the HP 300 MKII. The HP 300 SE does not replace the HP 300 MKII, this model extends our range of Preamps. The HP 300 SE offers more flexibility in the connections and sonic benefits due to some improvements in the Power Supply and the Output stage of the Line Amplifier.

Description

Overview

The HP 300 SE has two independent XLR Inputs, three RCA Inputs, one Monitor Output, two RCA Outputs and one XLR Output. The Gain is switchable in three steps, this allow to set the optimum Gain and regulation Ratio depending on the efficiency of the Loudspeaker. The new designed Line Amp has a extremely high Signal to Noise Ratio. Noise is not only a characteristic of the tubes, a significant contribution is coming from the mains, respectively the Power supply design of a Preamp. The Power supply of the HP 300 SE consists of the external transformer with optimized isolation characteristic, and the precise ultra low noise Voltage regulators of the main unit. Both systems are match to each and help reducing the Noise of the Lime Amplifier effectively. The Balanced Output is realized with a highly symmetrical Output Transformer. The Transformer offers the possibility to connect or disconnect the Ground connection to the Power Amplifier. The feature helps to reduce disturbing mains induced currents that usually flow in the Ground of the Signal connection. Both Outputs offer very low Output Resistances. Connecting cables up to 5 – 10 meter is without negative influence. A helpful feature in modern Hifi combinations is the Home Theatre Bypass Function. The HP 300 SE offers this feature, with the additional possibility to select the Bypass Input from a RCA Input to a XLR Input. The Monitor Output is buffered and can be used to drive an external headphone Amp, the Analog Input of a Computer or similar. Phono MC is available optional.

Options

Options are available for additional cost, for additional Inputs & Outputs, please call or write us an email for more information.

SPECIFICATIONS
Basic Model: HP 300 SE, optional: Phono MC
Tube Complement: Line-Platine: ECC 81 und ECC 88; Phono: ECC 81
Design: Aluminium silver or Aluminium black
Gain high: 25 dB = 18,5
Gain med: 19 dB = 8,8
Gain low: 12 dB = 4
Frequency Response Gain: high 10 Hz - 200 kHz - 1,5 dB
Total Harmonic Distortion: Gain high 0.03%
S / N Ratio: Gain high - 92 dB
S / N Ratio: Gain low -108 dB
Left/Right Crosstalk: 90 dB 1 kHz
Input to Input Crosstalk: 100 dB 1 kHz
Input Impedance: 100 kOhm
Output Impedance: 50 Ohm cinch; 150 Ohm XLR
Channel Balance: 0.5 dB - 70 dB
Power Consumption: 35 W
Weight with Power Supply: 12 kg
Dimensions: 438mm (W) x 77mm (H) x 410mm (D)
Dimensions Power Supply: 110mm (W) x 80mm (H) x 250mm (D)
Warranty: Preamplifier (36 Months)
Tubes (90 Days)
Connections
Inputs: 3 x Cinch, 2 x XLR, 1 x Phono Option
Outputs: 2 x Cinch, 1 x XLR, 1 x Monitor
Phono-MC
RIAA-Equalization Accuracy: 0,3 dB 15 Hz - 20 kHz
Corner Frequency Subsonic Filter: 15 Hz / - 3 dB
Input Impedance: 30 - 1000 Ohm
Input Sensitivity: 0.2 mV / 0.7 mV
Gain low: 58 dB
Gain high: 67 dB
Signal-to-Noise Ratio (weighted): -75 dB
About Octave
Octave is a German high-end tube amplifier brand known for combining classic valve musicality with modern control electronics, protection circuits and a strong focus on long-term reliability. Hand-built in Germany, Octave designs its amplifiers to stay stable in real-world systems — and to remain serviceable for years to come. Octave’s approach is simple: tubes deliver the musical character and realism, while modern electronics ensure the valves operate in optimal conditions. The result is a sound that feels lively and emotionally engaging, yet controlled, clean and stable across a wide range of loudspeakers. Hi-Fi Market is an authorised Octave dealer in Estonia, supplying genuine products with official manufacturer warranty and local support. We help you choose the right Octave direction for your room and speakers — from an elegant integrated amplifier setup to higher-level separates with preamp + power amplification. Visit our showroom near Tallinn (Tabasalu) to discuss system matching and audition selected Octave solutions in a calm, real listening setup.

Build a Stereo System with Octave

Octave is most often chosen as the heart of a premium two-channel system. Start with an integrated amplifier, match it with suitable loudspeakers, and refine the chain with the right sources and practical setup details.
Explore compatible categories for an Octave-based system: If you want a short shortlist, contact us — we’ll recommend an Octave-based system path that fits your room, speakers and budget, and invite you for an audition in Tabasalu.
Shipping and Delivery

FREE DELIVERY ACROSS ESTONIA (For orders over €100)

Shipments within Estonia generally arrive at the destination specified by the buyer within 3-5 business days from the entry into force of the sales contract. The contract enters into force from the moment the amount due is received into the online store's bank account.

If you wish, you can also pick up the goods yourself. The address of the salon is Kallaste 7, Tabasalu.

WE DELIVER TO ALL COUNTRIES OF THE EUROPEAN UNION.

Please fill in all fields at the checkout and we will contact you regarding shipping costs. Please make payment only after confirming the shipping costs.

OWNER OF THE ONLINE STORE

The owner of the online store hifimarket.ee is Audio Sommelier OÜ (registration number 16891515), address Kallaste, 7, Tabasalu Keskus, Estonia 76901