HiFi ROSE RA180 Integrated Amplifier
HiFi ROSE RA180 Integrated Amplifier
HiFi ROSE RA180 Integrated Amplifier
HiFi ROSE RA180 Integrated Amplifier
HiFi ROSE RA180 Integrated Amplifier
HiFi ROSE RA180 Integrated Amplifier
HiFi ROSE RA180 Integrated Amplifier
HiFi ROSE RA180 Integrated Amplifier

HiFi Rose

HiFi ROSE RA180 Integrated Amplifier

Sale price£5,499.00
Quantity:
Available to order.

Shipping June 2022 - pre-order now.

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.

Class AD Amplifier

Class D amplifiers have a topology that theoretically provides a perfect linear output at 0% distortion and 100% power efficiency.  In order to achieve this, the switching action required high speed and accuracy.  However, previous products were weak compared to Class A/AB in the linearity aspect due to the limitations of silicon FET, which couldn't produce a smooth and natural sounds.  In the RA180, a new material, GaN FET, was used instead of Silicon FET to solve this problem.  The dead time was dramatically improved to 1/10 or less, and a nearly perfect linear output was realised with a switching speed close to zero.

This linearity goes beyond the Class D limits and produces a smooth and natural sound, like an analog amplifier.

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 Twitter 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.

Amplifies the very weak signal picked up by the cartridge and keep it as close as possible to the orignal sound.  MOVING MAGNET and MOVING COIL STAGES are provided with a simple switch selection and EQ values corresponding to curves from various record manufacturers are provided using parts with a 0.1% tolerance.

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): >150
Signal to Noise Ratio measure (S/N):

BTL 107dB

Balanced, Unbalanced: 105dB

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

Impedance Output: 53mΩ
Subsonic Filter: On/Off Switch (-3dB): 50Hz
Tone Control: On/Off Switch - Bass(100Hz)/Treble(10kHz): ±15dB
Crossover: On/Off Switch – HPF (-3dB): 600Hz~ 6kHz
Phono Turnover:

Flat

300Hz (+7.7dB@100Hz)

400Hz (+11.7dB@100Hz)

500Hz (+13dB@100Hz)

700Hz (+14.5dB@100Hz)

Phono Roll-Off:

Flat

1.6kHz (-16dB@10kHz)

2.1kHz (-13.7dB@10kHz)

3.18kHz (-11.7dB@10kHz)

3.4kHz (-8dB@10kHz)

6.36kHz (-5dB@10kHz)

Trigger: Trigger can be turned on: 3.3v ~12V
Size:

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

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

Weight: 16.7kg
Body: High-Purity Aluminium
Power: SMPS (800W)
Voltage: AC100-230V, 50/60Hz
Remote Control IR Input: 38kHz Infrared Ray (Within 10m of operating distance)

Shipping & Returns

Shipping

Items are posted Tuesday - Friday with DPD or other couriers (based on the item size/weight). Certain items are shipped as freight if over 30kg and may take 2-3 days to be delivered. Please contact us to confirm stock availability and shipping leadtimes.

Our cut-off for same day dispatch of in-stock products is 1pm. Collection in store may be available if stock isn't in our central warehouse.

Returns

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.

You must ensure goods are shipped in their original packaging if they are damaged/not working. Manufacturers will not accept returns and Yorkshire AV can not be held responsible for any damage in transit.

Several types of goods are exempt from being returned. Those that are bespoke items or those that we've had to request in for you.

(1) Examples of non-returnable items: 

Gift cards HiFi RacksSecond hand units / Warehouse unitsCustom cablesSpecial order items (items that we order in for you/were not in stock at the time of order)

To complete your return, we require a receipt or proof of purchase. 
Please do not send your purchase back to the manufacturer. 

There are certain situations where only partial refunds are granted (if applicable). Those are where:

Any item not in its original condition, is damaged or missing parts for reasons not due to our errorAny item that is returned more than 28 days after delivery

 

To complete your return, we require a receipt or proof of purchase. 
Please do not send your purchase back to the manufacturer. 

There are certain situations where only partial refunds are granted (if applicable). Those are where:

Any item not in its original condition, is damaged or missing parts for reasons not due to our errorWhere the item wasn't marked with an extended returns policy at the end of the checkout process

Refunds (if applicable) 

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. 

Items that have been opened will be listed on our "Clearance" section. We charge a 20% fee from the total item value which will be deducted from any refund amount applicable.


If your returns are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 2-3 days. 

Late or missing refunds (if applicable) 
If you haven’t received a refund yet, first check your bank account again. 
Then contact your credit card company, it may take some time before your refund is officially posted. 
Next contact your bank. There is often some processing time before a refund is posted. 
If you’ve done all of this and you still have not received your refund yet, please contact us at info@yorkshireav.co.uk. 

Sale items (if applicable) 
Only regular priced items may be refunded, unfortunately sale items cannot be refunded. 

Exchanges (if applicable) 
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at info@yorkshireav.co.uk and send your item to: Yorkshire AV LTD, Unit 6 Wood Farm, Doncaster Road, GOOLE, DN14 0JF, United Kingdom. 

Shipping 
To return your product, you should mail your product to: Yorkshire AV LTD, Unit 6 Wood Farm, Doncaster Road, GOOLE, DN14 0JF, United Kingdom 

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. 

Shipping & Returns

Shipping

Items are posted Tuesday - Friday with DPD or other couriers (based on the item size/weight). Certain items are shipped as freight if over 30kg and may take 2-3 days to be delivered. Please contact us to confirm stock availability and shipping leadtimes.

Our cut-off for same day dispatch of in-stock products is 1pm. Collection in store may be available if stock isn't in our central warehouse.

Returns

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.

You must ensure goods are shipped in their original packaging if they are damaged/not working. Manufacturers will not accept returns and Yorkshire AV can not be held responsible for any damage in transit.

Several types of goods are exempt from being returned. Those that are bespoke items or those that we've had to request in for you.

(1) Examples of non-returnable items: 

Gift cards HiFi RacksSecond hand units / Warehouse unitsCustom cablesSpecial order items (items that we order in for you/were not in stock at the time of order)

To complete your return, we require a receipt or proof of purchase. 
Please do not send your purchase back to the manufacturer. 

There are certain situations where only partial refunds are granted (if applicable). Those are where:

Any item not in its original condition, is damaged or missing parts for reasons not due to our errorAny item that is returned more than 28 days after delivery

 

To complete your return, we require a receipt or proof of purchase. 
Please do not send your purchase back to the manufacturer. 

There are certain situations where only partial refunds are granted (if applicable). Those are where:

Any item not in its original condition, is damaged or missing parts for reasons not due to our errorWhere the item wasn't marked with an extended returns policy at the end of the checkout process

Refunds (if applicable) 

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. 

Items that have been opened will be listed on our "Clearance" section. We charge a 20% fee from the total item value which will be deducted from any refund amount applicable.


If your returns are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 2-3 days. 

Late or missing refunds (if applicable) 
If you haven’t received a refund yet, first check your bank account again. 
Then contact your credit card company, it may take some time before your refund is officially posted. 
Next contact your bank. There is often some processing time before a refund is posted. 
If you’ve done all of this and you still have not received your refund yet, please contact us at info@yorkshireav.co.uk. 

Sale items (if applicable) 
Only regular priced items may be refunded, unfortunately sale items cannot be refunded. 

Exchanges (if applicable) 
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at info@yorkshireav.co.uk and send your item to: Yorkshire AV LTD, Unit 6 Wood Farm, Doncaster Road, GOOLE, DN14 0JF, United Kingdom. 

Shipping 
To return your product, you should mail your product to: Yorkshire AV LTD, Unit 6 Wood Farm, Doncaster Road, GOOLE, DN14 0JF, United Kingdom 

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. 

Warranty

Products come with your manufacturers standard warranty. Please see the product description or the manufacturers website for more details on their standard terms.

Issues within 28 days of purchase will be dealt with by Yorkshire AV. Beyond this, we'll be happy to assist you with the manufacturer if required.

Warranty

Products come with your manufacturers standard warranty. Please see the product description or the manufacturers website for more details on their standard terms.

Issues within 28 days of purchase will be dealt with by Yorkshire AV. Beyond this, we'll be happy to assist you with the manufacturer if required.

Secure Payment

Our website is encrypted and all payments are managed by STRIPE. We never store your card information - nor do we see the details.

We accept payment with all major credit/debit cards as well as AMEX.

You have the option of using PayPal (including PayPal Credit) and KLARNA at the checkout.

Secure Payment

Our website is encrypted and all payments are managed by STRIPE. We never store your card information - nor do we see the details.

We accept payment with all major credit/debit cards as well as AMEX.

You have the option of using PayPal (including PayPal Credit) and KLARNA at the checkout.