HiFi Rose

HiFi ROSE RA180 Integrated Amplifier

VAT included

Pickup available at The Barn

Usually ready in 24 hours

The RA180 is a state-of-the-art integrated amplifier using the latest innovative technologies.  Power damping and dead times were reduced to 1/10 or less.  Linearity was dramatically improved to create a near-perfect sound that transcends the boundaries between digital and analog.

New Concept Class AD Amplifier

The amplifier has developed from Class A to AB to Class D.  Class AB was developed to improve the high heat generation and low efficiency of A.  Class D has higher efficiency and higher output than AB, and also significantly improved S/N and THD characteristics compared to A and AB.  However, the sound quality has been evaluated as inferior to A/AB due to the limitations of the digital circuit.  The GaN class AD amplifier developed by HiFi ROSE has dramatically improved the problems of the existing Class D by applying innovative new materials.

Multi Output Component

The RA180 consists of two modules: one AMP module specialised for stable mid-bass and balance, and another specialised for smooth high-pitched and super tweeter areas.  Each AMP module supports 200W (8Ω) and can output up to 400W per channel.  When two independent modules are connected to a speaker's high and low frequencies separately, the driving force can be greatly improved without being affected by a counter electro-motive force.  BTL mode combines two independent modules for rich, balanced sound.

Designed to Play Up to the Super Tweeter Realm

The human hearing range has an upper limit of 15-20 kHz.  So, is there no need for higher frequencies?  Temporarily high trebles extend well beyond 20 kHz, even in harmonious sound.  For example, trumpets have a frequency response that extends to 100 kHz, and 88.2 kHz to 192 kHz sources have a 40 kHz to 96 kHz frequency response.

The RA180 is designed with a wide frequency response range so that even high-resolution sound sources with an output range of 20 Hz to 50 kHz, 100 kHz @ -3 dB, 200 kHz @ -6 dB.  Although this playability may be outside a person's hearing range, it faithfully reproduces a wide frequency range, which contributes to expressing a deep and wide sound field with the original sound.

Balanced Power Supply

The power supply has been exclusively developed for the RA180 applies 4th generation SiC FET technology to provide high output with less heat.  In addition, by using a self-developed PFC (power factor circuit), it is designed not to be affected by sudden load fluctuations.

The power supply device was developed to support a powerful damping factor of at least 200,l and the high output of 100 W is designed to produce powerful bass and soft treble.

PHONO Amplifier with Variable EQ

The purpose of the PHONO amplifier provided by the RA180 is for the recording producer to accurately reproduce the original intention.  It also reproduced the original sound as it is, which is the principle of HiFi ROSE.

It is designed to respond to a variety of vinyl records with low-mid bass TURNOVER and high-frequency ROLL OFF adjustment functions.

Amplifier Out:

4Ω: 200W x 4ch (800W)

8Ω: 200W x 4ch (800W)

BTL Mode On: 400W x 2ch (800W)

Input Sensitivity:


Balanced Input: 2,000mV

Unbalanced (Line 1,2,3) Input: 1,000mV

Phono (MM/MC) Input: 5mV/0.5mV

Impedance Input:

Balanced Input: 44kΩ

Unbalanced (Line 1,2,3) Input: 47kΩ

Phono (MM/MC) Input: 47kΩ

Bandwidth (0dBr±3dB/8Ω):

Speaker Output: 10Hz ~ 90kHz

H/F Speaker Output: 10Hz ~ 90kHz

Frequency Response (1W, 0±1dB/8Ω):

Speaker Output: 10Hz ~ 90kHz

H/F Speaker Output: 10Hz ~ 90kHz

THD Measure (Balanced & Unbalanced Input):

0.005% (50W)

Damping Factor (Speaker & H/F Speaker Output):


Signal to Noise Ratio measure (S/N):

BTL 107dB

Balanced, Unbalanced: 105dB

Phono MM/MC: 80dB (MM), 60dB (MC)

Impedance Output:


Subsonic Filter: On/Off Switch (-3dB):


Tone Control: On/Off Switch - Bass(100Hz)/Treble(10kHz):


Crossover: On/Off Switch – HPF (-3dB):

600Hz~ 6kHz

Phono Turnover:


300Hz (+7.7dB@100Hz)

400Hz (+11.7dB@100Hz)

500Hz (+13dB@100Hz)

700Hz (+14.5dB@100Hz)

Phono Roll-Off:


1.6kHz (-16dB@10kHz)

2.1kHz (-13.7dB@10kHz)

3.18kHz (-11.7dB@10kHz)

3.4kHz (-8dB@10kHz)

6.36kHz (-5dB@10kHz)


Trigger can be turned on: 3.3v ~12V


430(W) X 350(D) X 110(H)

Including Feet: 430(W) X 391(D) X 100(H)




High-Purity Aluminium


SMPS (800W)


AC100-230V, 50/60Hz

Remote Control IR Input:

38kHz Infrared Ray (Within 10m of operating distance)



Thank you for considering Yorkshire AV for your next investment in your AV or HiFi setup.

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Our returns policy lasts for 28 days for all items in our store except those defined in section (1) below.

To be eligible for a refund, your item must be unused/unopened and in the same condition that you received it. It must also be in the original packaging. If you return the item to us within 14 days of purchasing, you will be offered a full refund or exchange.

If your return comes to us after 14 days of purchasing and is opened, we will refund the full amount less 20%. Unused items returned up to 28 days after purchasing will be fully refunded.

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To start to return - please email us: info@yorkshireav.co.uk along with your order number and we'll take it from there.

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Orders for items not in stock

Given the vast amount of variations of each product (e.g. AudioQuest cables) or Pro-Ject Audio Turntables - we keep the most common options in stock (i.e. gloss black finish, or 1.5m RCA cables) whereas longer cables or cables with terminations that are less frequently ordered will be ordered as required.

Generally speaking - we receive orders within 2-3 days for UK suppliers and 3-4 days for European suppliers (i.e. AudioQuest, DALI).

We want you to be 100% satisfied which is why we'll give you an email/call if item(s) aren't in stock and give you the option of changing the order, cancelling or if you're happy to wait a few days, we'll get it out as soon as possible.

If an item states 'Available to Order' - this means the item is not in stock but we are able to order in. Lead times average 2 days but in some circumstances, delivery times may be longer and is outside of our control. Please contact us to get an estimate on delivery times if orders are urgent. 


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To help you purchase from Yorkshire AV, we have partnered with Kandoo, a regulated credit broker to offer all our customers a range of highly flexible finance options. Kandoo is a comparison service that searches to find you the best Personal Loan option that’s right for you.

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